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Found results for
patents
1.
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METAL MATRIX COMPOSITES FOR DRILL BITS
Application Number |
US2023072308 |
Publication Number |
2024/050235 |
Status |
In Force |
Filing Date |
2023-08-16 |
Publication Date |
2024-03-07 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Chandrasekaran, Senthilkumar
- Puzz, Travis Earl
|
Abstract
Metal matrix composite particle mixtures are disclosed comprising (a) primary tungsten metal particles; (b) metal carbide particles; (c) substantially spherical fused carbide particles; and (d) a binder. The present invention also provides a metal matrix composite comprising metal matrix composite particle mixtures disclosed herein and binders.
IPC Classes ?
- E21B 10/46 - Drill bits characterised by wear resisting parts, e.g. diamond inserts
- B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
- B33Y 10/00 - Processes of additive manufacturing
- B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
- B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
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2.
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TOOL RETAINER
Application Number |
US2023061465 |
Publication Number |
2024/026154 |
Status |
In Force |
Filing Date |
2023-01-27 |
Publication Date |
2024-02-01 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Dlugosz, Arkadiusz
- Geyer, James R.
|
Abstract
A tool retainer is provided. The tool has a retainer sleeve having a longitudinal external tab to engage with an internal recessed radial groove with a tool holder, and wherein the retainer sleeve has one or more internal radial tabs that engage with a recessed groove in a rotating tool shank. A cutting tool assembly including a cutting bit and the retainer sleeve is provided.
IPC Classes ?
- E21C 35/197 - Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements
- E21C 35/19 - Means for fixing picks or holders
- E21C 35/18 - Mining picks; Holders therefor
- B32B 27/16 - Layered products essentially comprising synthetic resin specially treated, e.g. irradiated
- E21B 10/00 - Drill bits
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3.
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ROTARY CUTTING TOOL WITH SUPPORT STRUCTURE
Application Number |
US2023011419 |
Publication Number |
2023/158546 |
Status |
In Force |
Filing Date |
2023-01-24 |
Publication Date |
2023-08-24 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Semnisky, Logan M.
- Bookheimer, Alan J.
- Grillenberger, Ingo G.
|
Abstract
A rotary cutting tool includes a support structure having a central hub located at an axially rearward end of the rotary cutting tool. A plurality of primary support members extends from the central hub in different axial and radial directions in three-dimensional space with respect to a central, rotational axis of the rotary cutting tool. The support structure may include one or more secondary support members extending from a primary support member in different axial and radial directions in three-dimensional space, and one or more tertiary support members to increase stiffness of the support structure. The central hub extends in a plane that is substantially perpendicular to the central, rotational axis of the rotary cutting tool. In one embodiment, each of the plurality of primary support members have a different physical dimension.
IPC Classes ?
- B23B 51/12 - Adapters for drills or chucks; Tapered sleeves
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4.
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ARMOR PLATE, ARMOR PLATE ASSEMBLY AND ARMOR
Application Number |
EP2023050417 |
Publication Number |
2023/135119 |
Status |
In Force |
Filing Date |
2023-01-10 |
Publication Date |
2023-07-20 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Parlow, Werner
- Theuerkauf, Thomas
- Wolf, Manfred
- Helldoerfer, Armin
|
Abstract
An armor plate (10) consists of a material that comprises a cermet, and the armor plate (10) has a density in the range of 5.0 to 6.5 g/cm3. The invention further relates to an armor plate assembly and to armor.
IPC Classes ?
- F41H 5/04 - Plate construction composed of more than one layer
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5.
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COMPUTER-BASED PLATFORM FOR DEVELOPING AND IMPLEMENTING INDUSTRIAL TOOL SOLUTIONS (DCX PLATFORM)
Application Number |
US2022081905 |
Publication Number |
2023/115057 |
Status |
In Force |
Filing Date |
2022-12-19 |
Publication Date |
2023-06-22 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Gopalakrishnan, Dileep
- Benko, Mitch
- Berlin, Dan
- Dewicki, Grzegorz
- Jayaram, Vijay
- Chowdary, Revanth
|
Abstract
A computer-based system is provided for processing information associated with industrial tool solutions. The system may include a digital platform for executing the tasks of various functional modules that provide a virtual toolbox within the platform. In one aspect, a solutions module receives information associated with multiple configurations of different industrial tool solutions, and displays graphical representations associated with each of the industrial tool solutions. A machines module is programmed for receiving information associated with machines associated with use of the industrial tool solutions, and also can display a digital replica of each machine. A project module is programmed for receiving and displaying project information including the industrial tool solution information and machine information. Another module in the virtual toolbox is a workpiece features module which receives and displays parameters or attributes of a workpiece to be processed in association with a given industrial tool solution.
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6.
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SURFACE COATED CUTTING TOOLS
Application Number |
US2022042017 |
Publication Number |
2023/034286 |
Status |
In Force |
Filing Date |
2022-08-30 |
Publication Date |
2023-03-09 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Liu, Zhenyu
- Vyavhare, Kimaya, Prakash
|
Abstract
2323233 layer have a misorientation angle less than 15 degrees as determined using a field-emission scanning electron microscope (FESEM) and an electron backscatter diffraction (EBSD) detector.
IPC Classes ?
- C23C 16/40 - Oxides
- C23C 16/36 - Carbo-nitrides
- C30B 29/20 - Aluminium oxides
- C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
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7.
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CHUCK, CUTTING TOOL, AND ASSEMBLY
Application Number |
EP2022059894 |
Publication Number |
2022/219052 |
Status |
In Force |
Filing Date |
2022-04-13 |
Publication Date |
2022-10-20 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Schuffenhauer, Michael
- Roth, Georg
- Kuhlemann, Patrick
|
Abstract
An assembly (10) comprises: - a chuck (12), which has a tool-receiving socket (16), a contact surface (18), and a screw thread (20); and - a cutting tool (14), which has a tool shaft (38), a mating contact surface (44), and a mating screw thread (40). In a clamped state, the mating screw thread (40) of the cutting tool (14) is screwed into the screw thread (20) of the chuck (12), the mating contact surface (44) of the cutting tool (14) is seated against the contact surface (18) of the chuck (12), and the tool shaft (38) is frictionally torque-transmittingly clamped in the tool-receiving socket (16). The invention also relates to a chuck of this type and to a cutting tool of this type.
IPC Classes ?
- B23B 31/02 - Chucks
- B23B 31/107 - Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
- B23B 31/11 - Retention by threaded connection
- B23B 31/30 - Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
- B23B 31/00 - Chucks; Expansion mandrels; Adaptations thereof for remote control
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8.
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CUTTING TOOL WITH INTERCONNECTED ARMS FOR INCREASED STIFFNESS TO WEIGHT RATIO
Application Number |
US2021062322 |
Publication Number |
2022/125609 |
Status |
In Force |
Filing Date |
2021-12-08 |
Publication Date |
2022-06-16 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Semnisky, Logan, M.
- Bookheimer, Alan, J.
|
Abstract
A cutting tool with interconnected arms that increases the stiffness to weight ratio of the cutting tool is described. The principles of the invention can be applied to any cutting tool, such as a reamer, a milling cutter, a slotting cutter, and the like. In one example, a cutting ring includes a cutting head assembly with a leading arm, a trailing arm, and a cutting head supported by the leading arm and the trailing arm. The trailing arm interconnects with the leading arm of an adjacent cutting head assembly, and the leading arm interconnects with a trailing arm of another adjacent cutting head assembly. As a result of this interconnection of arms, the axial, radial and tangential stiffness to weight ratio of the cutting tool is increased. A support member may be included to further increase the stiffness to weight ratio.
IPC Classes ?
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
- B23B 29/24 - Tool holders for a plurality of cutting tools, e.g. turrets
- B23C 5/12 - Cutters specially designed for producing particular profiles
- B23D 77/02 - Reamers with inserted cutting edges
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9.
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CUTTING TOOL WITH DIRECTED FLUID FLOW TO FACILITATE CHIP EVACUATION
Application Number |
US2021062367 |
Publication Number |
2022/125635 |
Status |
In Force |
Filing Date |
2021-12-08 |
Publication Date |
2022-06-16 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Semnisky, Logan, M.
- Bookheimer, Alan, J.
- Grillenberger, Ingo
- Schmid, Dominik
|
Abstract
A cutting tool, such as a reamer, includes a rear machine connection member, a center tube, a front cutting ring, and a rear cutting ring. The front cutting ring includes a sleeve member and one or more cutting head assemblies. Each cutting head assembly includes at least one support arm extending radially outwardly from a rotational axis, RA, of the cutting tool, and a cutting head supported by the at least one support arm. The at least one support arm of the cutting head assembly defines a fluid dynamic structure for directing fluid flow in a desired direction to facilitate chip evacuation during a cutting operation. The fluid dynamic structure can be an airfoil, a turbine blade, or similar structure that produces a directed fluid flow.
IPC Classes ?
- B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23D 77/02 - Reamers with inserted cutting edges
- B23Q 11/10 - Arrangements for cooling or lubricating tools or work
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10.
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INDEXABLE TANGENTIAL RAILWAY WHEEL MILLING INSERTS AND CUTTING TOOL HOLDERS
Application Number |
US2021045952 |
Publication Number |
2022/036226 |
Status |
In Force |
Filing Date |
2021-08-13 |
Publication Date |
2022-02-17 |
Owner |
- KENNAMETAL INC. (USA)
- NHS USA CORPORATION (USA)
|
Inventor |
- Schulte, Michael J.
- Johnson, Christopher
|
Abstract
Railway wheel milling tool system including a railway wheel truing cutters and tangential railway wheel milling inserts are disclosed. The tangential milling inserts have at least four indexable cutting edges, each with a central wiper cutting edge segment between two convex cutting edge segments. The milling inserts may allow both the flat portion and curved portion of a railway wheel to be machined with an improved surface finish. The railway wheel truing cutters comprise a plurality of insert pockets structured and arranged to receive the tangential railway wheel milling inserts.
IPC Classes ?
- B23B 27/02 - Cutting tools with straight main part and cutting edge at an angle
- B23B 27/22 - Cutting tools with chip-breaking equipment
- B23B 1/00 - Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
- B24B 29/00 - Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
- B23B 27/14 - Cutting tools of which the bits or tips are of special material
- B23C 5/02 - Milling-cutters characterised by the shape of the cutter
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11.
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CUTTING TOOL AND INDEXABLE CUTTING INSERT
Application Number |
EP2021064821 |
Publication Number |
2021/245147 |
Status |
In Force |
Filing Date |
2021-06-02 |
Publication Date |
2021-12-09 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
Funke, Frank
|
Abstract
The invention relates to a cutting tool (10), more particularly a chamfering tool. Said tool comprises a tool body (14) capable of rotation about a tool axis (12) and a chamfer cutting element (24), which is mounted for radial displacement on the tool body (14) by means of a guide (32). The chamfer cutting element (24) is retained on the tool body (14) in the radial direction by means of a holding arm (42). The holding arm (42) is elastically resilient in the radial direction and is, at least in portions, arranged within a groove (56) provided on the outer circumference of the tool body (14) and running substantially axially. The invention further relates to an indexable cutting insert (30) for a cutting tool (10) of this kind.
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12.
|
ADDITIVE MANUFACTURING TECHNIQUES AND APPLICATIONS THEREOF
Application Number |
US2020050421 |
Publication Number |
2021/126324 |
Status |
In Force |
Filing Date |
2020-09-11 |
Publication Date |
2021-06-24 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Perez, Martin, G.
- Garman, Mark, A.
- Hillebrecht, James, A.
|
Abstract
In one aspect, additive manufacture techniques are described herein which enable the densification of green articles prior to further article processing. In some embodiments, a method of forming an article comprises providing a powder composition, and forming the powder composition into a green article by one or more additive manufacturing techniques. The green article is contacted with a powder pressure transfer media. The green article and powder pressure transfer media are then subjected to cold isostatic pressing (CIP) or warm isostatic pressing (WIP) at a pressure less than minimum isostatic compaction pressure of the powder pressure transfer media to provide a densified green article.
IPC Classes ?
- B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
- B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
- B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
- B28B 1/00 - Producing shaped articles from the material
- B33Y 10/00 - Processes of additive manufacturing
- B33Y 80/00 - Products made by additive manufacturing
- B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
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13.
|
COMPOSITE CERAMIC BODIES AND APPLICATIONS THEREOF
Application Number |
US2020057310 |
Publication Number |
2021/112971 |
Status |
In Force |
Filing Date |
2020-10-26 |
Publication Date |
2021-06-10 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
Goldsmith, Jason
|
Abstract
In one aspect, ceramic bodies are described herein exhibiting composite architecture. Briefly, a composite ceramic body comprises a bulk region including a mixture of alpha-SiAlON and beta-SiAlON, and a surface region covering the bulk region, the surface region having a residual stress of -500 MPa to 500 MPa and a thickness of at least 5 μm.
IPC Classes ?
- C04B 35/597 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on silicon oxynitrides
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14.
|
ARMOR PLATE, ARMOR PLATE COMPOSITE AND ARMOR
Application Number |
IB2020055448 |
Publication Number |
2020/250147 |
Status |
In Force |
Filing Date |
2020-06-10 |
Publication Date |
2020-12-17 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Parlow, Werner
- Wolf, Manfred
- Theuerkauf, Thomas
|
Abstract
Armor plate having a thickness of at least 3 mm and an edge length of at least 20 mm, wherein the armor plate (10) consists of a material made largely of a component selected from the group hard metal, cermet and/or combinations thereof. An armor plate composite comprising at least two layers of armor plates and an armor are also provided.
IPC Classes ?
- F41H 5/04 - Plate construction composed of more than one layer
- B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
- B32B 9/04 - Layered products essentially comprising a particular substance not covered by groups comprising such substance as the main or only constituent of a layer, next to another layer of a specific substance
- B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
- B32B 3/18 - Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by an internal layer formed of separate pieces of material
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15.
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QUANTITATIVE TEXTURED POLYCRYSTALLINE COATINGS
Application Number |
US2020033026 |
Publication Number |
2020/236541 |
Status |
In Force |
Filing Date |
2020-05-15 |
Publication Date |
2020-11-26 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
Liu, Zhenyu
|
Abstract
In one aspect, methods of making coated articles are described herein. A method, in some embodiments, comprises providing a substrate, and depositing a coating by chemical vapor deposition (CVD) and/or physical vapor deposition (PVD) over a surface of the substrate, the coating comprising at least one polycrystalline layer, wherein one or more CVD and/or PVD conditions are selected to induce one or more properties of the polycrystalline layer. The presence of the one or more properties in the polycrystalline layer is quantified by two-dimensional (2D) X-ray diffraction analysis.
IPC Classes ?
- C23C 16/52 - Controlling or regulating the coating process
- C23C 16/40 - Oxides
- C23C 14/54 - Controlling or regulating the coating process
- C23C 14/08 - Oxides
- C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
- G01N 23/203 - Measuring back scattering
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16.
|
ADDITIVE MANUFACTURING TECHNIQUES AND APPLICATIONS THEREOF
Application Number |
US2020024495 |
Publication Number |
2020/198245 |
Status |
In Force |
Filing Date |
2020-03-24 |
Publication Date |
2020-10-01 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
Prichard, Paul, D.
|
Abstract
In one aspect, a method of making a sintered article comprises providing a composite article comprising a porous exterior printed from a powder composition via one or more additive manufacturing techniques, the porous exterior defining an interior volume and providing a loose powder component in the interior volume. The porous exterior and loose powder component are simultaneously sintered to provide the sintered article comprising a sintered interior and sintered exterior.
IPC Classes ?
- B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
- B33Y 10/00 - Processes of additive manufacturing
- B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
- B33Y 70/00 - Materials specially adapted for additive manufacturing
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17.
|
COMBINATION TOOL AS WELL AS DRILLS FOR SUCH A DRILLING/CHAMFERING TOOL
Application Number |
US2020022647 |
Publication Number |
2020/190726 |
Status |
In Force |
Filing Date |
2020-03-13 |
Publication Date |
2020-09-24 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Paul, Marcus
- Eckl, Bernhard
- Kauper, Herbert Rudolf
|
Abstract
The combination tool (2), in particular a drilling/ chamfering tool, comprises a drill (6) extending in the longitudinal direction (4) with a clamping sleeve (8), which is designed to receive the drill (6) and fasten the drill (6) at a variable length and which has a holding seat (38) for a cutting insert (12). The drill (6) comprises a cutting region (22) provided with grooves (14), wherein the grooves (14) extend helically and are formed between two grooves (14) drill backs (18). At least one of the drill backs (18) is partially flattened to form an adjustment surface (16) for the cutting insert (12), wherein the adjustment surface (16) extends helically. As a result, a length adjustment over a large length range is made possible independently of the twist angle (γ).
IPC Classes ?
- B23B 51/08 - Drills combined with tool parts or tools for performing additional working
- B23B 51/02 - Twist drills
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18.
|
PERIPHERAL MILLING TOOL AND METHOD FOR ARRANGING CUTTING EDGES
Application Number |
IB2020051722 |
Publication Number |
2020/178693 |
Status |
In Force |
Filing Date |
2020-02-28 |
Publication Date |
2020-09-10 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
Endres, Frank
|
Abstract
The invention relates to a peripheral milling tool (10) for machining metal, having a milling tool body (14) which can be rotated about a tool axis (12) and which comprises at least two cutting edge groups. For the cutting edges (16) of the first cutting edge group, the arrangement of the cutting edges results in a first average cutting thickness, and for the cutting edges (18, 20, 22, 24, 26) of the second cutting edge group, the arrangement of the cutting edges results in a second average cutting thickness. The first average cutting thickness and the second average cutting thickness are substantially equal. The invention additionally relates to a method for arranging cutting edges (16, 18, 20, 22, 24, 26) on a peripheral milling tool (10) which can be rotated about a tool axis (12).
IPC Classes ?
- B23C 5/08 - Disc-type cutters
- B23C 5/14 - Cutters specially designed for producing particular profiles essentially comprising curves
- B23C 5/16 - Milling-cutters characterised by physical features other than shape
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19.
|
DRILL TIP AND METHOD FOR PRODUCING A DRILL TIP
Application Number |
EP2019069320 |
Publication Number |
2020/035253 |
Status |
In Force |
Filing Date |
2019-07-18 |
Publication Date |
2020-02-20 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Kauper, Herbert Rudolf
- Schwägerl, Jürgen
- Strauchmann, Christian
- Tempelmeier, Julia
|
Abstract
The invention relates to a drill tip (2), comprising a center (4), at which a chisel edge (6) is arranged, and comprising a cutting lip (8), which adjoins the chisel edge (6) and runs outward from the center (4). A rake angle is formed along the chisel edge (6) and the cutting lip (8). The cutting lip (8) has an inner portion (10), which adjoins the chisel edge (6) and is arranged within the center (4). The cutting lip (8) has an outer portion (12), which outwardly adjoins the inner portion (10) and is arranged outside of the center (4). A point thinning (16) is formed on the drill tip (2), which point thinning is curved in such a way that the inner portion (10) runs arcuately from an outer edge of the center (4) toward the chisel edge (6). The invention further relates to a method for producing a drill tip (2) of this type.
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20.
|
STUMP CUTTER TOOTH ASSEMBLY
Application Number |
US2019041626 |
Publication Number |
2020/014626 |
Status |
In Force |
Filing Date |
2019-07-12 |
Publication Date |
2020-01-16 |
Owner |
- KENNAMETAL INC. (USA)
- VERMEER MANUFACTURING COMPANY (USA)
|
Inventor |
- Carson, Duane, E.
- Roozeboom, Keith L.
- Weinberg, Clint A.
- Bloom, Robbie D.
- Disselkoen, Matthew R.
- Verzilli, Claudio, Carrafiello
|
Abstract
A stump cutter tooth assembly includes a stump cutter tooth held by a pocket member that includes an arcuate shoulder having one or more tabs. A stump cutter tooth is adapted to be mounted on the pocket member. The stump cutter tooth includes a tooth body having one or more recesses and an arcuate outer surface. The arcuate outer surface of the stump cutter tooth is adapted to abut against the arcuate shoulder of the pocket member to prevent unwanted movement of the stump cutter tooth relative to the pocket member during the cutting operation. The one or more recesses of the stump cutter tooth cooperate with the one or more tabs of the pocket member to provide an anti-rotation and locating feature.
IPC Classes ?
- A01G 23/06 - Uprooting or pulling up trees; Extracting or eliminating stumps
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21.
|
COMPRESSION MILLING CUTTER WITH INDEXABLE CUTTING INSERTS
Application Number |
US2019012491 |
Publication Number |
2019/136353 |
Status |
In Force |
Filing Date |
2019-01-07 |
Publication Date |
2019-07-11 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Slusarcyk, Joseph
- Long, Thomas J.
- Marshall, Tim J.
- Dudzinsky, Ronald Louis
|
Abstract
A compression milling cutter includes a shank and a front cutting portion that terminates at a leading end of the milling cutter. The front cutting portion has a first circumferential row of one or more insert receiving pockets proximate a leading end of the milling cutter, and a second circumferential row of one or more insert receiving pockets, each insert receiving pocket configured to receive a respective indexable cutting insert. The cutting insert mounted in the first circumferential row has a positive axial rake angle, A, and the indexable cutting insert mounted in an insert pocket of the second circumferential row has a negative axial rake angle, B. Because of the different axial rake angles, chips generated during a machining operation flow in opposite directions, thereby creating a compression zone disposed between the first and second circumferential rows. This compression zone replicates the cutting action of a solid end mill, particularly when machining fiber reinforced plastic materials.
IPC Classes ?
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
- B23C 5/00 - Milling-cutters
|
22.
|
MACHINING TOOL, PROCESSING DEVICE, AND METHOD FOR PROCESSING WORKPIECES
Application Number |
EP2018070250 |
Publication Number |
2019/057369 |
Status |
In Force |
Filing Date |
2018-07-26 |
Publication Date |
2019-03-28 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Hacker, Michael
- Kunschir, Sebastian
|
Abstract
The invention relates to a machining tool (2) for processing a bore in a workpiece, in particular for simultaneous processing of a plurality of bores distanced from one another by a predefined distance, said machining tool having a cutting body (8) extending in the direction of a tool longitudinal axis (4) and having at least one cutting element (12) arranged circumferentially, and a guide body (10), which adjoins the cutting body (8) in the direction of the tool longitudinal axis (4), is fastened to the cutting body (8) and has at least one circumferentially arranged guide element (20). The guide body (10) is free from cutting elements (12) and the guide body (10) is designed to exert a preload force in such a way that, during use, the at least one guide element (20) is preloaded against a bearing for the guide body (10).
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23.
|
MODULAR ROTARY CUTTING TOOL
Application Number |
US2017055139 |
Publication Number |
2019/040090 |
Status |
In Force |
Filing Date |
2017-10-04 |
Publication Date |
2019-02-28 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Filho, Ruy Frota De Souza
- Jäger, Horst
- Schwäegerl, Jüergen
- Wacinski, Manuel
|
Abstract
A modular rotary cutting tool includes a cutting head for insertion into a support. The cutting head has a coupling pin having torque surfaces and clamping surfaces formed on its outer peripheral surface. The coupling pin is divided into a front pin part and a rear pin part. The front pin part is defined by a circumferential groove. Stop surfaces for an axial pullout prevention are formed between the front pin part and the rear pin part. The torque surfaces and the clamping surfaces are arranged in different pin parts. For example, the clamping surfaces are preferably formed on the front pin part and the torque surfaces are preferably formed on the rear pin part. The clamping surfaces taper radially inward in a direction of the front cutting part at an angle of inclination, α2, with respect to the axis of rotation. Other variants and embodiments are broadly contemplated herein.
|
24.
|
TOOL STEEL ARTICLES FROM ADDITIVE MANUFACTURING
Application Number |
US2018044962 |
Publication Number |
2019/028227 |
Status |
In Force |
Filing Date |
2018-08-02 |
Publication Date |
2019-02-07 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Goldsmith, Jason, W.
- Wu, Yingwei
|
Abstract
In one aspect, methods of forming tooling articles from tool steel powder compositions via additive manufacturing techniques are described herein. A method of forming a tooling article comprises consolidating powder alloy into the tooling article via an additive manufacturing technique and heat treating the tooling article to provide the tooling article hardness of 35 to 65 HRC. The tooling article can be formed of an alloy composition comprising 0.2-2 weight percent carbon, 0-1 weight percent manganese, 0-1.5 weight percent silicon, 0-0.3 weight percent nickel, 0-15 weight percent cobalt, at least two of chromium, molybdenum, tungsten and vanadium in a combined amount of 5-25 weight percent and the balance iron. As described herein, the method can further comprise hot isostatic pressing the tooling article prior to the heating treatment.
IPC Classes ?
- B22F 3/24 - After-treatment of workpieces or articles
- B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
- B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
- C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
- C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
- C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
- B33Y 10/00 - Processes of additive manufacturing
- B33Y 70/00 - Materials specially adapted for additive manufacturing
|
25.
|
ARMOR PLATE AND ARMOR CONSISTING OF CARRIER AND ARMOR PLATE
Application Number |
IB2018055380 |
Publication Number |
2019/016750 |
Status |
In Force |
Filing Date |
2018-07-19 |
Publication Date |
2019-01-24 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Parlow, Werner
- Theuerkauf, Thomas
|
Abstract
The invention relates to an armor plate (10) having a thickness that is at least 2 mm and an edge length of at least 20 mm, the armor plate consisting of a material that contains tungsten heavy metal or tungsten carbide as the essential component. The invention also relates to armor with a carrier (12), a plurality of such armor plates (10) and a permanently elastic adhesive layer (14) by means of which the armor plates (10) are connected to the carrier (12).
IPC Classes ?
- F41H 5/04 - Plate construction composed of more than one layer
|
26.
|
DOUBLE-SIDED TANGENTIAL CUTTING INSERT
Application Number |
US2018025074 |
Publication Number |
2018/183630 |
Status |
In Force |
Filing Date |
2018-03-29 |
Publication Date |
2018-10-04 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Fang, Xiangdon, Daniel
- Cripps, Michael, R.
- Dufour, Jean-Luc, Daniel
- Wills, David, J.
|
Abstract
A double-sided tangential cutting insert comprising a pair of cutting rake faces, a pair of major side surfaces and a pair of opposing minor side faces each having a twisted convex shape. Each of the cutting rake faces is defined between a pair of main cutting edges, a pair of full nose cutting edges, and a pair of opposing convex minor cutting edges. Each of the minor side faces is defined between one of the convex minor cutting edges at one of the rake faces and one of the convex minor cutting edges at the other one of the rake faces wherein, at each minor side face, a ridge line interconnects an apex of the convex minor edge at the one of the rake faces and an apex of the convex minor cutting edge at the other one of the rake faces. Other variants and embodiments are broadly contemplated herein.
IPC Classes ?
- B23C 5/22 - Securing arrangements for bits or teeth
- B23C 5/10 - Shank-type cutters, i.e. with an integral shaft
|
27.
|
IMPARTING WEAR RESISTANCE TO SUPERALLOY ARTICLES
Application Number |
US2018023399 |
Publication Number |
2018/175468 |
Status |
In Force |
Filing Date |
2018-03-20 |
Publication Date |
2018-09-27 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Perez, Martin, G.
- Meyer, Michael
- Monds, Robert, W.
- Bell, Loretta, M.
|
Abstract
In one aspect, composite preforms are provided for imparting wear resistance to superalloy articles. The composite preforms can be employed for metallurgically bonding alloy wear plates or pads to superalloy articles. A composite preform, in some embodiments, comprises a powder alloy composition comprising 1-30 wt.% nickel, 0.05-2 wt.% iron, 15-25 wt.% chromium, 10-30 wt.% molybdenum, 0-1 wt.% carbon, 1-5 wt.% silicon, 0.05-2 wt.% boron, 0-5 wt.% tungsten, 0-3 wt.% tantalum, 0-0.1 wt% manganese, 0-3 wt.% aluminum, 0-0.1 wt% yttrium and the balance cobalt.
IPC Classes ?
- C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
- B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
|
28.
|
ROTATABLE CUTTING TOOL
Application Number |
US2018019962 |
Publication Number |
2018/160568 |
Status |
In Force |
Filing Date |
2018-02-27 |
Publication Date |
2018-09-07 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Kenno, Brandon, J.
- Paros, Nicholas, J.
- Swope, Chad
|
Abstract
A cutting tool rotatable about a central longitudinal axis of the cutting tool and configured for impingement upon a substrate includes an elongate cutting tool body having a head and a shank axially rearward of the head. The head includes a cutting member at an axial forward end thereof, a bolster portion axially rearward of the cutting member and a base portion at an axial rearward end of the head. In addition, the bolster portion includes a convex shape section and a generally cylindrical section contiguous with and axially rearward of the convex shape section.
IPC Classes ?
- E01C 23/12 - Devices or arrangements for working the finished surface; Devices for repairing the surface of damaged paving for taking-up, tearing-up, or breaking-up paving
- E21C 35/18 - Mining picks; Holders therefor
- E21C 27/30 - Mineral freed by means not involving slitting by jaws, buckets, or scoops that scoop-out the mineral
- B28D 1/14 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
|
29.
|
CEMENTED CARBIDE POWDERS FOR ADDITIVE MANUFACTURING
Application Number |
US2018018553 |
Publication Number |
2018/152448 |
Status |
In Force |
Filing Date |
2018-02-17 |
Publication Date |
2018-08-23 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Prichard, Paul, D.
- Collins, Gabriel, B.
|
Abstract
In one aspect, particle powder compositions are provided for article manufacture by various additive manufacturing techniques. A powder composition comprises a particle component comprising sintered cemented carbide particles having apparent density of at least 6g/cm3.
IPC Classes ?
- C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
- B33Y 70/00 - Materials specially adapted for additive manufacturing
|
30.
|
SIDE ACTIVATED MODULAR DRILL
Application Number |
IB2017057869 |
Publication Number |
2018/109679 |
Status |
In Force |
Filing Date |
2017-12-13 |
Publication Date |
2018-06-21 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Frota De Souza Filho, Ruy
- Henry, Nicholas
|
Abstract
A rotary cutting tool with a shank and an interchangeable cutting tip, wherein the shank includes a pocket which receives the interchangeable cutting tip via an interference fit. The pocket includes two centering wall portions which, when viewed along a central longitudinal axis, are oriented at a first angle with respect to one another, the first angle being greater than zero. The interchangeable cutting tip is axially displaceable between: an initial position, assumed upon being received in the pocket of the shank; a clamped position, wherein the interchangeable cutting tip is fixedly held with respect to the shank; and a bump-off position, wherein the interchangeable cutting tip is not fixedly held. A holding element holds the interchangeable cutting tip in the clamped position, and a bump-off element displaces the interchangeable cutting tip between the clamped position and the bump-off position. Other variants and embodiments are broadly contemplated herein.
|
31.
|
ROTARY CUTTING TOOL - IN PARTICULAR, A DRILL MILLING CUTTER
Application Number |
US2017061896 |
Publication Number |
2018/093969 |
Status |
In Force |
Filing Date |
2017-11-16 |
Publication Date |
2018-05-24 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Horn, Matthias
- Roth, Georg
|
Abstract
The cutting tool (2) is designed specifically as a drill milling cutter and has a nominal drilled-hole diameter (D), as well as a flat tool face (12). Primary and secondary face cutting edges (14A, 14B) are provided at the tool face (12), wherein the primary face cutting edges (14A) form a drill bit extending over the nominal drill diameter (D), and the secondary face cutting edges (14B) are set back by an axial offset (a) with respect to the primary face cutting edges (14A). In each case, primary and secondary flutes (16A, 16B) are associated with the face cutting edges (14A, 14B), along which peripheral cutting edges (18A, 18B) are arranged which are used during milling. The primary flutes (16A) have a greater cross-sectional area (26A) than the secondary flutes (16B). During the drilling operation, the chips are removed via the primary flutes (16A).
IPC Classes ?
- B23C 5/10 - Shank-type cutters, i.e. with an integral shaft
|
32.
|
TOOL BODY FOR A SHELL END MILL AND CUTTING TOOL
Application Number |
US2017029389 |
Publication Number |
2018/034710 |
Status |
In Force |
Filing Date |
2017-04-25 |
Publication Date |
2018-02-22 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Fraese, Alex
- Francis, Mark, Alan
- Penkert, Werner, Bruno
- Kreuzer, Michael
|
Abstract
A tool body for a shell end mill is described with at least one spiral chip guiding groove arranged at the circumference of the tool body for chip dissipation and at least two receptacles for indexable cutting inserts arranged at the chip guiding groove. In this case, the receptacles each comprise a base surface having a bore for receiving an indexable cutting insert fastening screw and at least one first abutment surface adjacent to the base surface. The transition between the base surface and the first contact surface is a groove. In addition, a cutting tool is described with such a tool body, wherein a two-sided indexable cutting insert is attached in each receptacle.
IPC Classes ?
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
- B23C 5/10 - Shank-type cutters, i.e. with an integral shaft
- B23C 5/00 - Milling-cutters
|
33.
|
METHOD FOR MACHINING WORKPIECES BY MEANS OF A SANDING MACHINE AND SANDING MACHINE
Application Number |
EP2017069952 |
Publication Number |
2018/029147 |
Status |
In Force |
Filing Date |
2017-08-07 |
Publication Date |
2018-02-15 |
Owner |
- KENNAMETAL INC. (USA)
- ELB-SCHLIFF WERKZEUGMASCHINEN GMBH (Germany)
|
Inventor |
- Hobohm, Uwe
- Penkert, Werner
- Stanik, Markus
- Groening, Holger
|
Abstract
The invention relates to a method for machining workpieces using a sanding machine (10), comprising a clamping device (32) for clamping a workpiece to be machined and at least one workpiece spindle (16) in which a machining tool can be clamped. Said method comprises the following steps: a blank (30) which is to be machined is clamped in the clamping device (32), at least one roughing operation is carried out by a milling cutter applied to the workpiece spindle (16) in which the blank material is removed up to a machining allowance. In the same blank set-up, high precision machining is carried out by an abrasive disk applied to the workpiece spindle (16). The invention also relates to a sanding machine for carrying out the method.
IPC Classes ?
- B24B 19/14 - Single purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
- B23Q 3/155 - Arrangements for automatic insertion or removal of tools
|
34.
|
COATED BODY AND METHOD FOR PRODUCTION OF THE BODY
Application Number |
EP2017060592 |
Publication Number |
2017/194372 |
Status |
In Force |
Filing Date |
2017-05-04 |
Publication Date |
2017-11-16 |
Owner |
- KENNAMETAL INC. (USA)
- OERLIKON SURFACE SOLUTIONS AG, PFÄFFIKON (Switzerland)
|
Inventor |
- Derflinger, Volker
- Kohlscheen, Joern
|
Abstract
A coated body having a substrate and a wear-resistant coating applied by physical vapor deposition onto the substrate comprises a base layer having a thickness of 1 to 10 µm applied onto the substrate, wherein the base layer is formed from a nitride of aluminum and at least one further metal from the group consisting of Ti, Cr, Si, Zr and combinations thereof; and a top layer adjacent to the base layer having a thickness of 0.1 to 5µm, wherein the top layer comprises at least one alternating layer composed of an oxynitride ply and a nitride ply arranged above the oxynitride ply, wherein the oxynitride ply is formed from an oxynitride of aluminum and optionally further metals from the group consisting of chromium, hafnium, zirconium, yttrium, silicon and combinations thereof and the nitride ply is formed from a nitride of aluminum and at least one further metal from the group consisting of Ti, Cr, Si, Zr and combinations thereof.
IPC Classes ?
- C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C 14/00 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
|
35.
|
CUTTER HEADS WITH IMPROVED COUPLING
Application Number |
US2015028460 |
Publication Number |
2015/171415 |
Status |
In Force |
Filing Date |
2015-04-30 |
Publication Date |
2015-11-12 |
Owner |
KENNAMETAL, INC. (USA)
|
Inventor |
- Sharivker, Leonid B.
- Boulakhov, Sergei V.
- Gey, Christoph
- Frota De Souza, Filho, Ruy
|
Abstract
A modular cutter head having a holder defining a threaded receiver. The cutter head can be screwed into the threaded receiver. The cutter can comprise an elongated body portion having a cutting end and cutting edge and an elongated coupling portion spaced from the cutting end, with the coupling portion comprising a core and a plurality of generally helically-extending start threads disposed circumferentially about the core. The cutter head may also include a cutting end having a chip flute and an insert seat.
IPC Classes ?
- B23C 5/26 - Securing milling-cutters to the driving spindle
- B23C 5/02 - Milling-cutters characterised by the shape of the cutter
|
36.
|
TOOL FOR ROTARY-BROACHING WORKPIECES
Application Number |
IB2015053440 |
Publication Number |
2015/170305 |
Status |
In Force |
Filing Date |
2015-05-11 |
Publication Date |
2015-11-12 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Gruenler, Jan
- Heinloth, Markus
- Herud, Josef K.
- Lill, Erich
- Hall, Arndt
- Foettinger, Sebastian
|
Abstract
The invention relates to a tool for rotary-broaching workpieces, having a support (10) which can be directly or indirectly attached to a machine tool and having multiple segments (12) which are secured to the support (10). Multiple receiving areas for cutting inserts are provided on each of the segments (12), and a hydraulic clamping unit (42) is provided on the support (10) for each segment (12), said segment being clampable on the support (10) by means of the clamping unit.
IPC Classes ?
- B23D 37/14 - Broaching machines with rotatably-arranged working tools
- B23D 43/00 - Broaching tools
- B23D 41/04 - Broaching machines or broaching devices characterised only by constructional features of particular parts of tool-carrying arrangements
|
37.
|
COUPLING MECHANISM FOR CUTTING TOOL
Application Number |
US2015029408 |
Publication Number |
2015/171721 |
Status |
In Force |
Filing Date |
2015-05-06 |
Publication Date |
2015-11-12 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Frota De Souza, Ruy
- Sharivker, Leonid B.
- Boulakhov, Sergei
- Gey, Christoph
- Harush, Yosi
- Bookheimer, Alan
- Levy, Uzi
- George, Stephen Michael
|
Abstract
A rotary cutting tool includes a cutter of generally cylindrical shape disposed about a central longitudinal axis. The cutter has a first end having an active fluted portion and an opposite second end, the second end having a male threaded portion disposed thereabout. The cutting tool further includes a shank of generally cylindrical shape disposed about the central longitudinal axis, the shank having a recessed female threaded portion formed in a first end. The male threaded portion includes a number of threads disposed at a first pitch and the female threaded portion includes a number of threads disposed at a second pitch different than the first pitch. The cutter and the shank are selectively coupled via threaded engagement of the male threaded portion and the female threaded portion.
IPC Classes ?
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
- B23C 5/22 - Securing arrangements for bits or teeth
|
38.
|
ROTARY TOOL, IN PARTICULAR A DRILL, AND CUTTING HEAD FOR A ROTARY TOOL OF THIS TYPE
Application Number |
EP2015056288 |
Publication Number |
2015/154993 |
Status |
In Force |
Filing Date |
2015-03-24 |
Publication Date |
2015-10-15 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Schwägerl, Jürgen
- Zeug, Berthold, Heinrich
- Jäger, Horst, Manfred
- Kauper, Herbert, Rudolf
- Tempelmeier, Julia
- Guter, Tim
|
Abstract
The invention relates to a rotary tool (2) designed in particular as a modular drill and extending in an axial direction (4) along an axis of rotation (6). The rotary tool comprises two coupling parts, namely a carrier (10) and a cutting head (12) that is exchangeably attached to the carrier (10). A pin receiving means (20) is provided on the carrier (10), into which pin receiving means a coupling pin (40) of the cutting head (12) is introduced in a clamping and reversible exchangeable manner. The pin receiving means (20) and the coupling pin (40) have clamping sections (32a, b) and torque sections (30a, b) that correspond to one another. In order to permit simple production, these clamping and torque sections are oriented parallel to the axis of rotation (6). In addition, in order to prevent pulling-out in an axial direction, stop surfaces (38a, b) are provided on the pin receiving means (20) and on the coupling pin (40), said stop surfaces being effective in an axial direction (4) and corresponding to one another. These stop surfaces are preferably horizontal and therefore perpendicular to the axis of rotation (6).
|
39.
|
PURIFICATION OF TUNGSTEN CARBIDE COMPOSITIONS
Application Number |
US2014066620 |
Publication Number |
2015/077457 |
Status |
In Force |
Filing Date |
2014-11-20 |
Publication Date |
2015-05-28 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Mehrotra, Pankaj, Kumar
- Greenfield, Mark, S.
|
Abstract
In one aspect, methods of purifying WC compositions are described herein. A method of purifying a WC composition comprises contacting the WC composition with an electrolyte solution comprising a cationic metal oxidant and oxidizing one or more metal impurities of the WC composition with the cationic metal oxidant to solubilize the one or more metal impurities in the electrolyte solution.
|
40.
|
EVAPORATOR UNIT FOR A PVD COATING INSTALLATION AND METHOD FOR PROVIDING SAID EVAPORATOR UNIT
Application Number |
EP2014067921 |
Publication Number |
2015/036223 |
Status |
In Force |
Filing Date |
2014-08-22 |
Publication Date |
2015-03-19 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Grau, Rudolf Karl
- Ngoumeni Yappi, Rodrigue
- Schweiger, Hubert Josef
|
Abstract
The evaporator unit (2) for a PVD coating installation comprises a main part (4) having an evaporation surface (6) to which an aluminum-titanium wetting layer (12) is applied. When the unit is in the delivery state, a layer (16) containing two reactants, namely particularly aluminum and titanium dihydride, is applied to the main part (4), said reactants forming the wetting layer (12) when the main part (4) is heated.
|
41.
|
CUTTING INSERT WITH CHIP DIVIDERS
Application Number |
US2014045881 |
Publication Number |
2015/013035 |
Status |
In Force |
Filing Date |
2014-07-09 |
Publication Date |
2015-01-29 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Wu, Qiang
- Henry, Nicholas J.
- Gey, Christoph
- Jaeger, Horst Manfred
|
Abstract
A cutting insert includes a polygonal body having an upper chip surface, a bottom surface and peripheral side surfaces extending between the upper chip surface and the bottom surface, the peripheral side surfaces intersecting the upper chip surface to form cutting edges therewith. A plurality of chip dividers are spaced apart about a perimeter of the upper chip surface to divide the chips produced by the cutting edges, each chip divider including a leading chip dividing portion adjacent to the cutting edge and extending generally upwardly from the cutting edge, the leading chip dividing portion having an elongated, rounded face. Adjacent chip dividers define a pocket such that the pockets are configured for promoting curling of chips produced by the cutting edges.
|
42.
|
EVAPORATION UNIT AND METHOD FOR EVAPORATING AN OBJECT WITH SAID TYPE OF EVAPORATION UNIT
Application Number |
EP2014062431 |
Publication Number |
2014/198926 |
Status |
In Force |
Filing Date |
2014-06-13 |
Publication Date |
2014-12-18 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Draken, Alexander
- Grau, Rudolf Karl
- Ngoumeni Yappi, Rodrigue
- Schweiger, Hubert Josef
|
Abstract
In order to ensure that metal is homogeneously evaporated, in particular in a vacuum-strip evaporation plant, an evaporation unit (2) which has an inner cavity (6) which is defined by a surrounding web (10) on which an outer cavity (8) is connected, is provided.
|
43.
|
METHOD FOR PRODUCING ELECTRICALLY CONDUCTIVE CERAMIC BODIES, AND ELECTRICALLY CONDUCTIVE CERAMIC BODY
Application Number |
EP2014001539 |
Publication Number |
2014/198398 |
Status |
In Force |
Filing Date |
2014-06-06 |
Publication Date |
2014-12-18 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Ngoumeni Yappi, Rodrigue
- Schweiger, Hubert Josef
- Grau, Rudolf Karl
|
Abstract
A recycled conductive ceramic powder (P2) is used to produce an electrically conductive ceramic body (2) having defined resistivity (r). Said ceramic powder has a first fraction of a conductive material component (A) and a second fraction of a non-conductive material component (B). In a manner known per se, a green body (8) is produced from said ceramic powder (P2) and is then sintered. The recycled ceramic powder (P2) is obtained by processing a conductive ceramic sintered starting body (4). The ceramic body (2) thus can be produced with a high resistivity in the range of 1 to 1000 ohm*cm in a reproducible manner.
IPC Classes ?
- C04B 35/58 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides
- C04B 35/622 - Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C23C 14/24 - Vacuum evaporation
|
44.
|
ROTARY TOOL FOR PRECISION MACHINING OF A DRILLED HOLE IN A WORKPIECE, AND METHOD FOR PRECISION MACHINING OF A DRILLED HOLE
Application Number |
US2013062225 |
Publication Number |
2014/197000 |
Status |
In Force |
Filing Date |
2013-09-27 |
Publication Date |
2014-12-11 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
Hacker, Michael
|
Abstract
In order to achieve as highly accurate an alignment of the frictional tool (2) as possible and therefore as high a drilled hole quality as possible during the precision machining of a drilled hole (14), the cutting edges (6) of the frictional tool (2) are divided into two cutting groups (A, B), the cutting edges (6A, 6B) of which are spaced apart with respect to one another in each case by an axial spacing (x) from one another. Here, the axial spacing (x) is selected in such a way that, at a predefined first, slower feed speed (v1), merely the cutting edges (6A) of the first cutting edge group (A) are in engagement with the workpiece (16) and, at a higher, predefined second feed speed (v2), all cutting edges (6A, 6B) are in engagement with the workpiece (16).
IPC Classes ?
- B23B 39/04 - Co-ordinate boring or drilling machines; Machines for making holes without previous marking
- B23B 29/03 - Boring heads
- B26F 1/16 - Perforating by tool or tools of the drill type
|
45.
|
MACHINING TOOL, IN PARTICULAR BORING BAR AND METHOD FOR WORKING A NUMBER OF BORES
Application Number |
EP2014001486 |
Publication Number |
2014/195007 |
Status |
In Force |
Filing Date |
2014-06-03 |
Publication Date |
2014-12-11 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Hacker, Michael
- Kunschir, Sebastian
|
Abstract
To make it possible for bores (16) that are in line with one another to be efficiently worked by means of a boring bar (2), the boring bar has a main body (10) with an axis of rotation (R) and a number of cutting elements (12, 12A) at intervals from one another in the axial direction (4) and also guiding elements (14) for guiding the main body (10) in a guiding bore (16A). The guiding elements (14) are kept at a distance from the axis of rotation (R) equivalent to a guide radius (r1). The main body (10) is divided into a functional region (19) and an eccentric region (20), wherein the cutting elements (12, 12A) and the guiding elements (14) are arranged such that they are distributed around the main body (10) over an angular range (a) of less than 180°. Furthermore, the circumferential side (22) of the main body (10) has in the eccentric region (20) a reduced distance from the axis of rotation (R) in comparison with the guide radius (r1), and so the main body (10) can be passed eccentrically through a respective bore (16, 16A) of which the unworked tube radius (r2) is less than the guide radius (r1).
|
46.
|
CUTTING TOOL, AND METHOD FOR PRODUCING A CUTTING TOOL
Application Number |
EP2014001488 |
Publication Number |
2014/195009 |
Status |
In Force |
Filing Date |
2014-06-03 |
Publication Date |
2014-12-11 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Ach, Eduard
- Schwägerl, Jürgen
|
Abstract
The cutting tool (1), especially drill or milling cutter, comprises a base (3) which extends in an axial direction (2) and has an outer shell (14) with at least one interior recess (18) that extends in the axial direction (2), a supporting structure (16) having at least one separating piece (26) which separates a plurality of recesses (18) from each other being formed in the supporting structure. The cutting tool (1) is particularly a solid hard-metal tool. The supporting structure (16) ensures an efficient use of material.
IPC Classes ?
- B23B 51/02 - Twist drills
- B23B 51/06 - Drills with lubricating or cooling equipment
- B23C 5/28 - Features relating to lubricating or cooling
- B23P 15/32 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-drills
|
47.
|
MULTILAYER STRUCTURED COATINGS FOR CUTTING TOOLS
Application Number |
US2014031977 |
Publication Number |
2014/160839 |
Status |
In Force |
Filing Date |
2014-03-27 |
Publication Date |
2014-10-02 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Leicht, Peter, Rudolf
- Liu, Zhenyu
- Greenfield, Mark, S.
- Liu, Yixiong
|
Abstract
In one aspect, cutting tools are described having coatings adhered thereto which, in some embodiments, can demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool described herein comprises a substrate and a coating adhered to the substrate, the coating having a multilayer structure including a plurality of structural units each comprising a bonding layer and an adjacent alumina layer, the alumina layer having a thickness of less than 0.5 μm and the bonding layer having a thickness less than 1 μιτι, the bonding layer comprising TiCN and TiAlOC.
IPC Classes ?
- B23B 27/14 - Cutting tools of which the bits or tips are of special material
- C23C 16/40 - Oxides
- C23C 16/30 - Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
|
48.
|
CLADDED ARTICLES AND METHODS OF MAKING THE SAME
Application Number |
US2014022947 |
Publication Number |
2014/150323 |
Status |
In Force |
Filing Date |
2014-03-11 |
Publication Date |
2014-09-25 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Zheng, Qingjun
- Liu, Yixiong
- Faust, James, A.
- Dewet, Danie, J.
- Subbaiyan, Sudharsan
- Komolwit, Piyamanee
- Rowe, Mark, J.
|
Abstract
In one aspect, methods of making cladded articles are described herein. A method of making a cladded article, in some embodiments, comprises disposing over a surface of a metallic substrate a sheet comprising organic binder and powder metal or powder alloy having a solidus temperature at least 100°C less than the metallic substrate and heating the powder metal or powder alloy to provide a sintered metal or sintered alloy cladding metallurgically bonded to the metallic substrate.
IPC Classes ?
- B22F 7/02 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers
- B22F 3/12 - Both compacting and sintering
- B23K 20/00 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
|
49.
|
COATED BODY WHEREIN THE COATING SCHEME INCLUDES A COATING OF LAYER OF TiAL2O3 AND METHOD OF MAKING THE SAME
Application Number |
US2014030974 |
Publication Number |
2014/153324 |
Status |
In Force |
Filing Date |
2014-03-18 |
Publication Date |
2014-09-25 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Liu, Zhenyu
- Cooper, Rodrigo, A.
- Leicht, Peter, R.
- Greenfield, Mark, S.
- Liu, Yixiong
|
Abstract
A coated cutting insert (20) and a method for making the same. The coated cutting insert (20) has a substrate (22) with a substrate surface (24, 26). There is a backing coating scheme on the substrate surface (24, 26), and a TiAl203 coating layer wherein the TiAl203 coating layer is deposited using chemical vapor deposition from a gaseous composition including AlCl3, H2, TiCl4, C02 and HC1.
IPC Classes ?
- C23C 16/40 - Oxides
- C23C 16/44 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes characterised by the method of coating
|
50.
|
WEAR-RESISTANT CLADDINGS
Application Number |
US2014022920 |
Publication Number |
2014/150311 |
Status |
In Force |
Filing Date |
2014-03-11 |
Publication Date |
2014-09-25 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Zheng, Qingjun
- Liu, Yixiong
- Vasinko, Robert J.
- Dawson, Joel Thomas
- Meyer, Michael J.
|
Abstract
In one aspect, articles are described herein comprising wear-resistant claddings. An article described herein, in some embodiments, comprises a metallic substrate and a cladding adhered to the substrate, the cladding including a metal matrix composite layer comprising at least one hard particle tile having a pore structure infiltrated with matrix metal or matrix alloy. Infiltration of the pore structure of the hard particle tile by the matrix metal or alloy can render the tile fully dense or substantially fully dense.
IPC Classes ?
- C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C 14/14 - Metallic material, boron or silicon
- B23K 20/00 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
|
51.
|
COATINGS FOR CUTTING TOOLS
Application Number |
US2014031291 |
Publication Number |
2014/153440 |
Status |
In Force |
Filing Date |
2014-03-20 |
Publication Date |
2014-09-25 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Liu, Zhenyu
- Leicht, Peter, Rudolf
- Cooper, Rodrigo, Alejandro
- Greenfield, Mark, S.
- Liu, Yixiong
|
Abstract
In one aspect, cutting tools are described having coatings adhered thereto which, in some embodiments, can demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising a polycrystalline layer of TiZrAl203.
IPC Classes ?
- C23C 16/06 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes characterised by the deposition of metallic material
- B23B 27/14 - Cutting tools of which the bits or tips are of special material
|
52.
|
COATINGS FOR CUTTING TOOLS
Application Number |
US2014031358 |
Publication Number |
2014/153469 |
Status |
In Force |
Filing Date |
2014-03-20 |
Publication Date |
2014-09-25 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Wendt, Karl, Heinz
- Sottke, Volkmar
- Leicht, Peter, Rudolf
- Liu, Yixiong
- Greenfield, Mark, S.
- Westphal, Hartmut
|
Abstract
In one aspect, cutting tools are described having coatings adhered thereto which, in some embodiments, can demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising at least one Zr doped layer deposited by chemical vapor deposition comprising ZrAl2O3.
IPC Classes ?
- C23C 16/06 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes characterised by the deposition of metallic material
- C23C 16/455 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes characterised by the method of coating characterised by the method used for introducing gases into the reaction chamber or for modifying gas flows in the reaction chamber
|
53.
|
METAL-CUTTING TOOL, IN PARTICULAR REAMING TOOL, AND METHOD FOR MANUFACTURING THIS SAME
Application Number |
US2014016207 |
Publication Number |
2014/127105 |
Status |
In Force |
Filing Date |
2014-02-13 |
Publication Date |
2014-08-21 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
Hacker, Michael
|
Abstract
In order to enable a finishing operation of a drilled hole which offers high quality, at the same time combined with a high process speed, a metal-cutting tool formed as a reamer (2) has a main body (16) which extends along a longitudinal center axis (4) and on which, distributed around the periphery, at least three cutter bars (20) and a pair of guide bars (28A, B) are formed, wherein the latter follow one after the other in the peripheral direction (26), without cutters. The cutter bars (20) and the guide bars (28A, B) are here arranged unevenly distributed around the periphery in such a way that, during operation, a resultant deflection force (Fr), which is oriented in a deflection direction (a) lying in an angular section spanned between the guide bars (28A, B), is given.
IPC Classes ?
- B23D 77/00 - Reaming tools
- B23B 51/08 - Drills combined with tool parts or tools for performing additional working
|
54.
|
DRILL BIT
Application Number |
US2014012293 |
Publication Number |
2014/116575 |
Status |
In Force |
Filing Date |
2014-01-21 |
Publication Date |
2014-07-31 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Kauper, Herber Rudolf
- Schwägerl, Jürgen
|
Abstract
In order to ensure good guidance of a drilling tool at the start of a drilling operation and at the same time ensure a reliable evacuation of a center chip, in the drill bit (2), in a tool flank (12) adjoining a respective main cutting edge (4), an additional point thinning (30) is recessed in the region of a transverse cutting edge (6), which additional point thinning, extending in a principal direction (32) from the tool flank (12), merges, with a convex course, into a chip flute (14). As a result of the convex design, an as far as possible homogeneous, edge-free transition into the chip flute is obtained. Since the point thinning (30) is additionally made, the tool flank, even in the rear end facing away from the cutting edge (4), remains at a front axial position, so that a second land (24) is effective for a reliable guidance of the bore already at an axially front position.
|
55.
|
GREEN COLORED REFRACTORY COATINGS FOR CUTTING TOOLS
Application Number |
US2014012976 |
Publication Number |
2014/116967 |
Status |
In Force |
Filing Date |
2014-01-24 |
Publication Date |
2014-07-31 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Wendt, Karl, Heinz
- Sottke, Volkmar
- Cooper, Rodrigo, Alejandro
- Leicht, Peter
- Liu, Yixiong
|
Abstract
In one aspect, coated cutting tools are described herein. A coated cutting tool described herein comprises a substrate and a coating adhered to the substrate, the coating comprising at least one composite layer deposited by chemical vapor deposition, the composite layer comprising an aluminum oxynitride phase, a metal oxide phase including zirconium oxide, a zirconium sulfur nitride phase and a metal oxynitride phase in addition to the aluminum oxynitride phase, the metal oxynitride phase comprising zirconium oxynitride.
IPC Classes ?
- C23C 16/44 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes characterised by the method of coating
- C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
|
56.
|
REAMER
Application Number |
US2013062209 |
Publication Number |
2014/062363 |
Status |
In Force |
Filing Date |
2013-09-27 |
Publication Date |
2014-04-24 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Zimmerman, Armin Josef
- Meyer, Robert
- Schuffenhauer, Michael
|
Abstract
A reamer has a shank (14) made of steel and a cutting body (16) made of a harder material, wherein the cutting body forms the outer circumference of the reamer in the region of the workpiece side end (10) and has all the cutting ribs (18).
IPC Classes ?
- B23D 77/00 - Reaming tools
- B23B 51/08 - Drills combined with tool parts or tools for performing additional working
|
57.
|
PROCESSES AND APPARATUSES FOR MAKING CUTTING TOOL INSERTS
Application Number |
US2013058120 |
Publication Number |
2014/051947 |
Status |
In Force |
Filing Date |
2013-09-05 |
Publication Date |
2014-04-03 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Jameson, Steven A.
- Cripps, Michael R.
- Smith, Christopher J.
- Hammond, Terry
- Carlson, Robert K.
- Dummermuth, John
|
Abstract
A process for the production of cutting tool inserts is described. A bottom punch is positioned into a powder compaction mold. A metallurgical powder is introduced into a mold cavity. A top punch is positioned into the powder compaction mold in an orientation opposed to the bottom punch. The metallurgical powder is compressed between the bottom punch and the top punch to form a powder compact. Also disclosed are cutting tool inserts produced in accordance with the process and powder pressing apparatuses for the production of cutting tool inserts.
IPC Classes ?
- B22F 5/10 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
- B22F 3/02 - Compacting only
- B30B 15/02 - Dies; Inserts therefor or mountings thereof; Moulds
- B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
|
58.
|
DOUBLE-SIDED CUTTING INSERTS WITH ANTI-ROTATION FEATURES
Application Number |
US2013060354 |
Publication Number |
2014/052118 |
Status |
In Force |
Filing Date |
2013-09-18 |
Publication Date |
2014-04-03 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Fang, X., Daniel
- Dufour, Jean-Luc
- Wills, David, J.
|
Abstract
A double-sided cutting insert may generally comprise: a top surface; a bottom surface; at least one side surface interconnecting the top surface and the bottom surface and forming at least one cutting edge; a through hole extending between the top surface and bottom surface; and wherein each of the top surface and bottom surface comprise an anti-rotation element comprising a single recess comprising a generally cyclic conical periphery. Each of the top surface and bottom surface may comprise at least one cyclic conical face. The recess may comprise a geometry that is complementary to the at least one cyclic conical face of the projection in an insert receiving pocket in a tool holder. A cutting tool incorporating one or more of the cutting inserts, and methods of making and using the cutting inserts are also described.
IPC Classes ?
- B23C 5/22 - Securing arrangements for bits or teeth
|
59.
|
TOOL HOLDER FOR TANGENTIAL CUTTING INSERT
Application Number |
IB2013002622 |
Publication Number |
2014/033549 |
Status |
In Force |
Filing Date |
2013-08-27 |
Publication Date |
2014-03-06 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Kaufmann, Igor
- Mohideen Abdul, Anwar Sadat
|
Abstract
A tool holder (5) includes a receptacle (8) for a cutting insert (9), in particular a tangential cutting insert with eight cutting edges. The tool holder (5) further includes a lateral contact surface (10), a rear contact surface (12) and a bottom surface (14). In a top view the bottom surface (14) is quadrilateral. The bottom surface (14) includes an elevated support portion (32) having two mutually inclined support surfaces (36) for the cutting insert.
IPC Classes ?
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
- B23B 29/04 - Tool holders for a single cutting tool
|
60.
|
COMPOSITE SINTERED POWDER METAL ARTICLES
Application Number |
US2013049009 |
Publication Number |
2014/018235 |
Status |
In Force |
Filing Date |
2013-07-02 |
Publication Date |
2014-01-30 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Mirchandani, Prakash K.
- Chandler, Morris E.
|
Abstract
A composite sintered powder metal article including a first region including a cemented hard particle material such as, for example, cemented carbide. The article includes a second region including: a metallic material selected from a steel, nickel, a nickel alloy, titanium, a titanium alloy, molybdenum, a molybdenum alloy, cobalt, a cobalt alloy, tungsten, a tungsten alloy; and from 0 up to 30 percent by volume of hard particles. The first region is metallurgically bonded to the second region, and each of the first region and the second region has a thickness of greater than 100 microns. The second region comprises at least one mechanical attachment feature so that the composite sintered powder metal article can be attached to another article. The article comprises one of an earth boring article, a metalcutting tool, a metalforming tool, a woodworking tool, and a wear article.
IPC Classes ?
- B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
- C22C 29/00 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides
- B23D 61/12 - Straight saw blades; Strap saw blades
- B23D 65/00 - Making tools for sawing machines or sawing devices for use in cutting any kind of material
- B21B 27/02 - Shape or construction of rolls
- B23B 51/00 - Tools for drilling machines
- F16C 13/00 - Rolls, drums, discs, or the like; Bearings or mountings therefor
|
61.
|
MULTI- COMPONENT POWDER COMPACTION MOLDS FOR CUTTING INSERTS AND RELATED METHODS
Application Number |
US2013032871 |
Publication Number |
2013/154788 |
Status |
In Force |
Filing Date |
2013-03-19 |
Publication Date |
2013-10-17 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
Cripps, Michael R.
|
Abstract
A multi-component powder compaction mold configured for the production of cutting inserts is disclosed. A top section having a cavity wall forming a top cavity and a bottom section having a cavity wall forming a bottom cavity are stacked and aligned so that the top cavity and the bottom cavity collectively form a mold cavity. The mold cavity has a top cavity wall and a bottom cavity wall.
IPC Classes ?
- B22F 3/03 - Press-moulding apparatus therefor
- B30B 11/02 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses using a ram exerting pressure on the material in a moulding space
- B30B 15/02 - Dies; Inserts therefor or mountings thereof; Moulds
- B22F 3/12 - Both compacting and sintering
|
62.
|
COATED TITANIUM ALLOY SURFACES
Application Number |
US2013034392 |
Publication Number |
2013/151865 |
Status |
In Force |
Filing Date |
2013-03-28 |
Publication Date |
2013-10-10 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Prichard, Paul, Dehnhardt
- Dawson, Joel, Thomas
- Rowe, Mark
|
Abstract
In one aspect, composite articles are described herein comprising a lightweight, high strength metal substrate and an abrasion resistant coating adhered to the substrate. In some embodiments, a composite article described herein comprises a titanium or titanium alloy substrate and a coating adhered to the substrate, the coating comprising particles disposed in a metal or alloy matrix.
IPC Classes ?
- B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
- B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
|
63.
|
TITANIUM DIBORIDE-SILICON CARBIDE COMPOSITES USEFUL IN ELECTROLYTIC ALUMINUM PRODUCTION CELLS AND METHODS FOR PRODUCING THE SAME
Application Number |
US2012057761 |
Publication Number |
2013/089886 |
Status |
In Force |
Filing Date |
2012-09-28 |
Publication Date |
2013-06-20 |
Owner |
- KENNAMETAL INC. (USA)
- YECKLEY, Roberta R. (USA)
|
Inventor |
- Yeckley, Russell L.
- Landwehr, Sean Erin
|
Abstract
Composite materials comprising titanium diboride, silicon carbide and carbon-containing scavenger additions are useful in electrolytic aluminum production cells. The carbon-containing scavenger additions may include tungsten carbide, boron carbide and/or carbon. The amounts of titanium diboride, silicon carbide and carbon-containing scavenger are controlled in order to provide optimum performance. The titanium diboride/silicon carbide composite materials may be used as cathodes in electrolytic aluminum production cells and are electrically conductive, exhibit desirable aluminum wetting behavior, and are capable of withstanding exposure to molten cryolite, molten aluminum and oxygen at elevated temperatures during operation of such cells.
IPC Classes ?
- C25C 7/02 - Electrodes; Connections thereof
- C25C 3/06 - Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
|
64.
|
EARTH BORING CUTTING INSERTS AND EARTH BORING BITS INCLUDING THE SAME
Application Number |
US2012060529 |
Publication Number |
2013/066624 |
Status |
In Force |
Filing Date |
2012-10-17 |
Publication Date |
2013-05-10 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Oakes, James J.
- Mirchandani, Prakash K.
- Collins, Gabriel B.
- Eso, Oladapo O.
- Johnson, John L.
|
Abstract
An earth boring cutting insert including a cemented carbide comprising metal carbide grains dispersed in a metallic binder including at least one of platinum, palladium, rhenium, rhodium, and ruthenium. Also disclosed is an earth boring bit such as, for example, a rotary-cone earth boring bit or a percussion bit, including at least one earth boring cutting insert comprising a cemented carbide including a metallic binder comprising at least one of platinum, palladium, rhenium, rhodium, and ruthenium
IPC Classes ?
- C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- E21B 10/00 - Drill bits
|
65.
|
CUTTING INSERTS HAVING DISCONTIGUOUS CLEARANCE FACES
Application Number |
US2012058226 |
Publication Number |
2013/062721 |
Status |
In Force |
Filing Date |
2012-10-01 |
Publication Date |
2013-05-02 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Dufour, Jean-Luc
- Fang, X. Daniel
- Wills, David J.
|
Abstract
Cutting inserts are described having at least two discontiguous clearance faces. Cutting tool systems including the cutting inserts are also described. An indexable cutting insert includes a top face, a bottom face, and at least two clearance faces connecting the top face and the bottom face at a periphery of the cutting insert. The at least two clearance faces include a primary clearance face contiguous with the top face and forming a cutting edge at an intersection of the primary clearance face and the top face, and a secondary clearance face discontiguous with the primary clearance face and separated from the primary clearance face by a bridge surface, and wherein a primary clearance angle formed by the primary clearance face is larger than a secondary clearance angle formed by the secondary clearance face.
IPC Classes ?
- B23B 27/14 - Cutting tools of which the bits or tips are of special material
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
|
66.
|
CUTTING INSERTS FOR EARTH-BORING BITS
Application Number |
US2012053264 |
Publication Number |
2013/043347 |
Status |
In Force |
Filing Date |
2012-08-31 |
Publication Date |
2013-03-28 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Coleman, Heath C.
- Mirchandani, Prakash K.
|
Abstract
A cutting insert for an earth-boring bit comprises a cemented carbide material. The cemented carbide material comprises a plurality of tungsten carbide grains, and a plurality of cubic carbide grains comprising at least one of titanium carbide, vanadium carbide, zirconium carbide, hafnium carbide, niobium carbide, tantalum carbide, mixtures thereof, and solid solutions thereof. The cemented carbide material also comprises a binder including at least one of cobalt, a cobalt alloy, nickel, a nickel alloy, iron, and an iron alloy. Embodiments of the cutting inserts are suitable for use on, for example, rotary cone earth-boring bits and fixed cutter earth-boring bits. A hybrid cemented carbide material comprising first regions of cemented carbide based on tungsten carbide and cobalt, dispersed in a continuous region of cemented carbide material comprising cubic carbides also is disclosed and is useful in cutting inserts of earth-boring bits.
IPC Classes ?
- C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
- E21B 10/56 - Button-type inserts
|
67.
|
REAMING TOOL AND ADJUSTING SCREW FOR A FINE ADJUSTMENT MECHANISM, IN PARTICULAR FOR A REAMING TOOL
Application Number |
EP2012067997 |
Publication Number |
2013/037916 |
Status |
In Force |
Filing Date |
2012-09-13 |
Publication Date |
2013-03-21 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Manner, Heinrich Georg
- Schwarznau, René
- Spichtinger, Xaver Franz
- Zimmermann, Armin Josef
|
Abstract
Reaming tool (2) comprising a rotational axis (6), a main tool body (4) with a plurality of peripherally arranged cutting inserts (12), and a fine adjustment mechanism associated with each cutting insert (12), said mechanism comprising an adjusting screw (24) with a conical section (32) that acts on the cutting insert (12) for fine adjustment, the conical section (32) being arranged between a first and a second cylindrical guide section (30a, 30b). The two guide sections (30a, 30b) ensure high-precision guidance of the adjusting screw (24).
IPC Classes ?
- B23D 77/04 - Reamers with inserted cutting edges with cutting edges adjustable to different diameters along the whole cutting length
|
68.
|
METHODS OF FORMING WEAR RESISTANT LAYERS ON METALLIC SURFACES
Application Number |
US2012049284 |
Publication Number |
2013/032626 |
Status |
In Force |
Filing Date |
2012-08-02 |
Publication Date |
2013-03-07 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Mirchandani, Prakash K.
- Chandler, Morris E.
|
Abstract
Methods for forming a wear resistant layer metallurgically bonded to at least a portion of a surface of a metallic substrate may generally comprise positioning hard particles adjacent the surface of the metallic substrate, and infiltrating the hard particles with a metallic binder material to form a wear resistant layer metallurgically bonded to the surface. In certain embodiments of the method, the infiltration temperature may be 50C to 100C greater than a liquidus temperature of the metallic binder material. The wear resistant layer may be formed on, for example, an exterior surface and/or an interior surface of the metallic substrate. Related wear resistant layers and articles of manufacture are also described.
IPC Classes ?
- C23C 26/00 - Coating not provided for in groups
- C23C 26/02 - Coating not provided for in groups applying molten material to the substrate
- C23C 24/10 - Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
|
69.
|
CUTTING INSERT AND CUTTING TOOL HAVING SINUSOIDAL AND HELICAL CUTTING EDGES
Application Number |
US2012046871 |
Publication Number |
2013/022555 |
Status |
In Force |
Filing Date |
2012-07-16 |
Publication Date |
2013-02-14 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Fang, X. Daniel
- Palmer, Frederick John
- Dufour, Jean-Luc
- Wills, David J.
|
Abstract
A cutting tool system (140) is designed to have a combined sinusoidal-shaped and helical- shaped cutting edge formed by an assembly of aligned common cutting inserts (147c, 147b, 147d) each having a sinusoidal and helical cutting edge.
IPC Classes ?
- B23C 5/10 - Shank-type cutters, i.e. with an integral shaft
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
|
70.
|
AN INDEXABLE DRILL INSERT
Application Number |
US2012046576 |
Publication Number |
2013/016018 |
Status |
In Force |
Filing Date |
2012-07-13 |
Publication Date |
2013-01-31 |
Owner |
- KENNAMETAL INDIA LIMITED (India)
- KENNAMETAL INC. (USA)
|
Inventor |
Ramesh, Karthic
|
Abstract
The present disclosure provides a quadrangular indexable drill insert comprising a substantially flat top surface and bottom surface, a side surface adjoining the top and bottom surfaces; four identical cutting edges formed at intersection of side surface and top surface, each cutting edge comprising, a concave curved part edge of predetermined radius at corner of the insert; a first part edge oriented towards axis of drill body and is having negative slope, said first part edge is connected to the concave curved part edge through a nose portion; a second part edge connected to first part edge through a transitional edge, said second part edge is tangentially oriented to an imaginary inscribed circle; a third part edge connected to the second part edge through a transitional edge, and a nose portion of adjoining the third part edge with concave curved part edge of succeeding cutting edge.
IPC Classes ?
- B23B 51/02 - Twist drills
- B23B 51/08 - Drills combined with tool parts or tools for performing additional working
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
|
71.
|
MULTI-PIECE TWIST DRILL HEAD AND TWIST DRILL INCLUDING THE SAME
Application Number |
US2012042396 |
Publication Number |
2013/009431 |
Status |
In Force |
Filing Date |
2012-06-14 |
Publication Date |
2013-01-17 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Fang, X. Daniel
- Dufour, Jean-Luc
- Wills, David, J.
|
Abstract
One non-limiting aspect of the present disclosure is directed to a multi-piece twist drill head. The multi-piece twist drill head includes a core piece (11) formed from a first hard material, and a peripheral piece (12) formed from a second hard material. The core piece (11) and peripheral piece (12) each comprise a cutting edge and are adapted to mate to provide a central region and a peripheral region, respectively, of the multi-piece twist drill head. A twist drill including the multi-piece twist drill head is also disclosed.
|
72.
|
ABRASION RESISTANT STEEL, METHOD OF MANUFACTURING AN ABRASION RESISTANT STEEL AND ARTICLES MADE THEREFROM
Application Number |
US2011061810 |
Publication Number |
2012/074832 |
Status |
In Force |
Filing Date |
2011-11-22 |
Publication Date |
2012-06-07 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
Moody, Vance
|
Abstract
An abrasion resistant steel consisting essentially of, in weight %: 0.20-0.30% carbon, 0.40-1.25% manganese, 0.05% maximum phosphorous, 0.01% maximum sulfur, 0.20-0.60% silicon, 0.50-1.70% chromium, 0.20-2.00% nickel, 0.07-0.60% molybdenum, 0.022-0.10% titanium, 0.001-0.10% boron, 0.027-0.10% aluminum, balance iron, and incidental impurities. The steel may be melted and cast into a steel ingot or slab, hot rolled to a desired plate thickness; austenitized at 1650-1700°F; water quenched; and tempered at 350-450 °F. The resulting steel plate may have a surface hardness of at least 440 HBW, a mid-thickness hardness of at least 90% of the surface hardness, and toughness in the transverse direction at -60°F of at least 20 ft-lbs and at room temperature of at least 40 ft-lbs.
IPC Classes ?
- C22C 38/00 - Ferrous alloys, e.g. steel alloys
- C21D 8/00 - Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C22C 38/18 - Ferrous alloys, e.g. steel alloys containing chromium
- C22C 38/40 - Ferrous alloys, e.g. steel alloys containing chromium with nickel
|
73.
|
CUTTING INSERTS
Application Number |
US2011046985 |
Publication Number |
2012/033585 |
Status |
In Force |
Filing Date |
2011-08-09 |
Publication Date |
2012-03-15 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Henry, Nicholas J.
- Mizgalski, Kent P.
- Chen, Shi
|
Abstract
A cutting insert (420, 422, 424) has a cutting insert body (430, 530, 630) containing a central aperture (444, 544, 644), as well as having a seating surface (434, 436, 534, 536, 634, 636), a flank face (438, 538, 638), and a corner cutting region (432, 532, 632). The seating surface (434, 436, 534, 536, 634, 636) contains a radial coolant delivery trough (460, 560, 660) with a radial outward end (478, 578, 678) and a radial inward end (462, 562, 662). One lateral topographic region (480, 580, 680) is along one side (466, 566, 666) of the coolant delivery trough (460, 560, 660) and another lateral topographic region (482, 582, 682) is along another side (468, 568, 668) of the coolant delivery trough (460, 560, 660).
IPC Classes ?
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
- B23B 27/14 - Cutting tools of which the bits or tips are of special material
- B23C 5/22 - Securing arrangements for bits or teeth
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
|
74.
|
CUTTING INSERT ASSEMBLY AND COMPONENTS THEREOF
Application Number |
US2011046986 |
Publication Number |
2012/030484 |
Status |
In Force |
Filing Date |
2011-08-09 |
Publication Date |
2012-03-08 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Massa, Ted, R.
- Henry, Nicholas, J.
- Andras, Linn, R.
- Mizgalski, Kent, P.
- Prichard, Paul, D.
- Chen, Shi
- Conway, Charles, L.
|
Abstract
A cutting assembly (100) has a holder (102, 390, 390A, 390B) with a seat (138, 397, 397A, 397B) and a coolant delivery passage (142, 398, 398A, 398B). A locking pin (106) with a longitudinal bore (176) affixes to the seat (138, 397, 397A, 397B) thereby communicating with the coolant delivery passage (142, 398, 398A, 398B). A clamp assembly (110) attaches to the holder (102, 390, 390A, 390B) and engages a cutting insert (108, 420, 422, 424). The clamp assembly (110) has a diverter plate (116, 116A), which has a bottom surface (370) defining a diverter bowl (372) and a diverter channel (376). Coolant flows through the longitudinal bore (176) into the diverter bowl (372) and through the diverter channel (376) and into a radial coolant trough (460, 560, 660) of the cutting insert (108, 420, 422, 424).
IPC Classes ?
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
- B23B 27/10 - Cutting tools with special provision for cooling
- B23B 29/04 - Tool holders for a single cutting tool
- B23C 5/22 - Securing arrangements for bits or teeth
- B23C 5/28 - Features relating to lubricating or cooling
|
75.
|
SHIM FOR A CUTTING INSERT AND CUTTING INSERT-SHIM ASSEMBLY WITH INTERNAL COOLANT DELIVERY
Application Number |
US2011046988 |
Publication Number |
2012/030485 |
Status |
In Force |
Filing Date |
2011-08-09 |
Publication Date |
2012-03-08 |
Owner |
- KENNAMETAL INC. (USA)
- HOFFER, Brad, D. (USA)
|
Inventor |
- Prichard, Paul, D.
- Andras, Linn, R.
- Nelson, Joseph, V.
- Muller, Thomas, O.
- Mizgalski, Kent, P.
- Conway, Charles, L.
- Henry, Nicholas, J.
- Chen, Shi
|
Abstract
A cutting insert-shim assembly (700) that has a cutting insert (150) with interior coolant passages (300). A shim (704, 850) has a first side surface (780, 852) and a second side surface (782, 854) and contains a cavity (800, 882), which defines a first opening (802, 882) in the first side surface (780, 852) and a second opening (818, 882, 894, 896) in the second side surface (782, 854). When the shim (704, 850) is in a first condition, the first opening (802, 882) provides a first level of coolant communication to the cutting insert (150). When the shim (704, 850) is in a second condition, the second opening (818, 882, 894, 896) provides a second level of coolant communication to the cutting insert (150).
IPC Classes ?
- B23B 27/10 - Cutting tools with special provision for cooling
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
- B23B 29/04 - Tool holders for a single cutting tool
- B23C 5/22 - Securing arrangements for bits or teeth
- B23C 5/28 - Features relating to lubricating or cooling
|
76.
|
COMBINATION END MILLING/DRILLING/REAMING CUTTING TOOL
Application Number |
US2011045668 |
Publication Number |
2012/027057 |
Status |
In Force |
Filing Date |
2011-07-28 |
Publication Date |
2012-03-01 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Craig, Karen A.
- Chandler, Jason W.
|
Abstract
A combination end milling/drilling/reaming cutting tool includes an end milling portion, a drilling portion, and a reaming portion. The cutting tool also includes a neck portion between the end milling portion and the drilling portion, and a clearance neck portion between a shank and the reaming portion. A method of machining a workpiece using the combination end milling/drilling/reaming cutting tool is also disclosed.
IPC Classes ?
- B23C 5/10 - Shank-type cutters, i.e. with an integral shaft
- B23B 51/02 - Twist drills
- B23B 51/08 - Drills combined with tool parts or tools for performing additional working
- B23D 77/00 - Reaming tools
|
77.
|
CEMENTED CARBIDE COMPOSITIONS HAVING COBALT-SILICON ALLOY BINDER
Application Number |
US2011044186 |
Publication Number |
2012/021254 |
Status |
In Force |
Filing Date |
2011-07-15 |
Publication Date |
2012-02-16 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
Kelkar, Rajendra
|
Abstract
Cemented carbide compositions consisting essentially of tungsten carbide particles and a cobalt-silicon alloy binder are disclosed. Also disclosed are methods of making the cemented carbide compositions and articles which incorporate the cemented carbide compositions. Pellets having the cemented carbide compositions may be used in the uncrushed or crushed form. The cemented carbide compositions may also be used as metal cutting tool inserts, road construction tool inserts, oil or gas drill inserts (20), mining tool inserts, and as substrates (6) for ultrahard materials, such as PCD, PCBN, and TSP.
IPC Classes ?
- E21B 10/56 - Button-type inserts
- C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
- C22C 1/05 - Mixtures of metal powder with non-metallic powder
- E21B 10/50 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
- E21B 10/54 - Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
|
78.
|
CONTOUR END MILL
Application Number |
US2011038530 |
Publication Number |
2012/021206 |
Status |
In Force |
Filing Date |
2011-05-31 |
Publication Date |
2012-02-16 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
Davis, Danny R.
|
Abstract
A contour end mill (10) includes a shank portion (12) and a cutting portion (14). The cutting portion defines a cutting diameter (18), a corner radius (24) and a major radius (26). The major radius is greater than one-half of the cutting diameter. As a result, the end mill produces a much smoother finish and a reduced chip thickness.
IPC Classes ?
- B23C 5/10 - Shank-type cutters, i.e. with an integral shaft
- B23C 5/04 - Plain cutters, i.e. having essentially a cylindrical or tapered cutting surface of substantial length
- B23C 5/02 - Milling-cutters characterised by the shape of the cutter
|
79.
|
CUTTING TOOL WITH UNEQUAL FLUTE SPACING
Application Number |
US2011039570 |
Publication Number |
2012/021211 |
Status |
In Force |
Filing Date |
2011-06-08 |
Publication Date |
2012-02-16 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Krieg, Tilo
- Gey, Christoph
- George, Stephen, M.
|
Abstract
A cutting tool (10) having a shaft (15) with a longitudinal axis (20), wherein the cutting tool (10) includes a first flute (32) extending about the longitudinal shaft (15) along a helix angle and a first cutting edge (56) adjacent the first flute (32). The cutting tool (10) also includes a second flute (36) extending about the longitudinal shaft (15) along a helix angle and a second cutting edge (58) adjacent a second flute (36). The cutting tool (10) further includes a third flute (40) extending about the longitudinal shaft (15) along a helix angle and a third cutting edge (60) adjacent the third flute (40). The first cutting edge (56), the second cutting edge (58), and the third cutting edge (60) are unequally angularly spaced from each other.
|
80.
|
CUTTING INSERT AND HOLDER FOR ROTATING APPLICATIONS
Application Number |
US2011032248 |
Publication Number |
2011/162860 |
Status |
In Force |
Filing Date |
2011-04-13 |
Publication Date |
2011-12-29 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Frota De Souza, Filho, Ruy
- South, Adam
- Brown, Paul A.
- Kerin, Mark A.
|
Abstract
A cutting insert rotated about an axis may be utilized during a metal working operation and applied against the rotating workpiece to enhance tool performance. Coolant may be provided through the central bore of the cutting insert utilizing bypass ports around the threaded hold-down bolts. Additionally, the cutting insert may be held within the toolholder pocket utilizing hoop walls which follow a serpentine path to provide flexibility. Finally, relative rotation of the cutting insert with respect to the toolholder body may be prevented utilizing a pair of protrusions within the toolholder pocket which engage a pair of recesses within a side of the cutting insert.
IPC Classes ?
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
- B23C 5/22 - Securing arrangements for bits or teeth
- B23B 29/06 - Tool holders equipped with longitudinally- arranged grooves for setting the cutting tool
- B23B 29/04 - Tool holders for a single cutting tool
|
81.
|
CUTTING INSERT WITH INTERNAL COOLANT DELIVERY AND CUTTING ASSEMBLY USING THE SAME
Application Number |
US2011032239 |
Publication Number |
2011/156050 |
Status |
In Force |
Filing Date |
2011-04-13 |
Publication Date |
2011-12-15 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Nelson, Joseph V.
- Andras, Linn R.
- Muller, Thomas O.
- Prichard, Paul D.
- Hoffer, Brad D.
|
Abstract
A metalcutting insert (150) that is useful in chipforming and material removal from a workpiece. The metalcutting insert (150) includes a metalcutting insert body (152, 154), which includes a cutting edge (160) having at least one discrete cutting location (161A-161F). The metalcutting insert body (152, 154) further contains a distinct interior coolant passage (300) communicating with the discrete cutting location (161A-161F). The distinct interior coolant passage (300) has a coolant passage inlet (304) defining a coolant passage inlet (304) cross-sectional area, a coolant passage discharge (302) defining a coolant passage discharge (302) cross-sectional area, and an axial coolant passage length. The distinct interior coolant passage (300) defines a coolant flow cross-sectional area along the axial coolant passage length thereof. The coolant passage inlet (304) cross-sectional area is substantially the same as the coolant passage discharge (302) cross-sectional area. The geometry of the coolant flow area changes along the axial coolant passage length.
IPC Classes ?
- B23B 27/10 - Cutting tools with special provision for cooling
- B23C 5/28 - Features relating to lubricating or cooling
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
- B23C 5/22 - Securing arrangements for bits or teeth
|
82.
|
MULTILAYER NITRIDE HARD COATINGS
Application Number |
US2011029153 |
Publication Number |
2011/149580 |
Status |
In Force |
Filing Date |
2011-03-21 |
Publication Date |
2011-12-01 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Penich, Ronald, M.
- Liu, Yixiong
- Ni, Wangyang
- Greenfield, Mark S.
|
Abstract
A wear resistant multilayer nitride hard coating (2) for substrates (6). The hard coaling (2) includes a first layer (4) of titanium aluminum nitride and a second layer (8) comprising a plurality of sublayer groups (10a). Each sublayer group (10a) includes a first sublayer (12) of titanium silicon nitride and a second sublayer (14) of titanium aluminum nitride. The composition of the titanium aluminum nitride, both in the first layer (4) and in the sublayer groups (1Oa)5 is (TixAI1-x)N, wherein 0.4 ≤ x ≤ 0.6, The composition of the titanium silicon nitride sublayers (12) is (TiySi1-y)N, wherein 0.85 ≤ y ≤ 0.98, and all of the silicon is in solid solution in the titanium silicon nitride such that no silicon phase or silicon nitride phase exists in this sublayer (12). The combined amount of aluminum and silicon present in the sublayer groups (10A) is narrowly controlled such that the sum of x and y is in the range of 1.38 to 1.46.
IPC Classes ?
- C23C 14/06 - Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C 14/16 - Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
|
83.
|
FINE MACHINING TOOL
Application Number |
US2011030443 |
Publication Number |
2011/139429 |
Status |
In Force |
Filing Date |
2011-03-30 |
Publication Date |
2011-11-10 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Hacker, Michael
- Schwarznau, Rene
- Kunschir, Sebastian
|
Abstract
A reamer having a cylindrical cutter part (1) having a plurality of cutting bodies (4) arranged on the cylinder circumferential surface, the cutting bodies (4) having a cutter region (12) realized as a cutting strip and having a guide region (13) that adjoins the cutter region in a continuous manner in the direction of feed (10).
IPC Classes ?
- B23D 77/02 - Reamers with inserted cutting edges
- B23D 77/14 - Reamers for special use, e.g. for working cylinder ridges
- B23B 51/08 - Drills combined with tool parts or tools for performing additional working
|
84.
|
COATED CERAMIC CUTTING INSERT AND METHOD OF MAKING THE SAME
Application Number |
US2011025165 |
Publication Number |
2011/112334 |
Status |
In Force |
Filing Date |
2011-02-17 |
Publication Date |
2011-09-15 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Ban, Zhigang
- Gates, Jr., Alfred
- Liu, Yixiong
- Wu, Jie
|
Abstract
A coated ceramic cutting insert (20) for removing material from a workpiece, as well as a method for making the same, that includes a ceramic substrate ((40, 40A, 40B) with a rake surface (28) and at least one flank surface (30) wherein a cutting edge (32) is at the juncture therebetween. A wear-resistant coating scheme (50, 82) that includes at least one exposed alumina coating layer (50, 60, 62, 82) which exhibits a blasted stress condition ranging between about 50 MPa (tensile stress) and about - 2GPa (compressive) as measured by XRD using the Psi tilt method and the (024) reflection of alumina. The exposed alumina coating layer (50, 60, 62, 82) is the result of wet blasting a titanium-containing outer coating layer (54, 54A, 54B) region from the surface of the alumina-containing base coating layer region (50, 50A, 50B).
IPC Classes ?
- B23B 27/14 - Cutting tools of which the bits or tips are of special material
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
- C04B 35/01 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides
- C23C 16/30 - Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
|
85.
|
COATED PCBN CUTTING INSERT, COATED PCBN CUTTING TOOL USING SUCH COATED PCBN CUTTING INSERT, AND METHOD FOR MAKING THE SAME
Application Number |
US2011025179 |
Publication Number |
2011/112335 |
Status |
In Force |
Filing Date |
2011-02-17 |
Publication Date |
2011-09-15 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Ban, Zhigang
- Liu, Yixiong
|
Abstract
A coated polycrystalline cubic boron nitride cutting insert (28, 58), which has a polycrystalline cubic boron nitride substrate (70, 126) with a cutting edge (34, 66). A wear-resistant coating scheme (74, 74A) is on the polycrystalline cubic boron nitride substrate. The wear-resistant coating scheme includes an inner coating layer region (94, 150) and at least one exposed alumina coating layer (84, 84A, 138). The exposed alumina coating layer (84, 84A, 138) exhibiting a post-blasted stress condition with stress ranging between about 50 MPa (tensile stress) and about - 2GPa (compressive stress) as measured by XRD using the Psi tilt method and the (024) reflection of alumina. The exposed coating layer (84, 84A, 138) is the result of wet blasting an outer titanium-containing coating layer (86, 88, 140, 142) from the surface of the alumina-containing coating layer region (84, 138).
IPC Classes ?
- B23B 27/14 - Cutting tools of which the bits or tips are of special material
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
- C04B 41/89 - Coating or impregnating for obtaining at least two superposed coatings having different compositions
- C23C 16/40 - Oxides
- C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
- B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
|
86.
|
TOOL FOR MACHINING AND METHOD FOR ORIENTING CUTTING INSERTS IN SUCH A TOOL
Application Number |
US2011022691 |
Publication Number |
2011/102944 |
Status |
In Force |
Filing Date |
2011-01-27 |
Publication Date |
2011-08-25 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Wuerfels, Andreas
- Kammermeier, Dirk
|
Abstract
A tool includes a parent body (12) and at least two cutting inserts (14) fastened directly or indirectly to the parent body (12). A central clamping device (30) is configured to clamp the cutting inserts (14) in an oriented position relative to the parent body (12). An assembly includes the tool (10) and a jig (32), which can accommodate the tool (10) in such a way that the cutting insert (14) is located in a desired position on the tool (10) and can be clamped in the desired position by actuating the clamping device (30). A method for fastening at least one cutting insert (14) to the parent body (12) includes fitting the parent body (12) with the cutting insert (14); arranging the parent body (12) in a jig (32); bringing the cutting insert (14) into a desired position; and clamping the cutting insert (14) in the desired position.
IPC Classes ?
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
- B23C 5/22 - Securing arrangements for bits or teeth
- B23B 5/20 - Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning crankshafts, eccentrics, or cams, e.g. crankpin lathes without removing same from the engine
|
87.
|
SIDE-MILLING CUTTER, IN PARTICULAR FOR MACHINING TOOTHING SYSTEMS
Application Number |
EP2011000549 |
Publication Number |
2011/098239 |
Status |
In Force |
Filing Date |
2011-02-07 |
Publication Date |
2011-08-18 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Gesell, Reinhold
- Schumann, Rene
|
Abstract
The invention relates to a side-milling cutter (1) for producing a toothing system (Z), having at least one insert (5) having a rectangular cross section arranged in a holding pocket (3) as an insert seat, having two top surfaces (9) facing away from each other, having two long insert sides (5a) located opposite each other and also having two narrow insert sides (5b) located opposite each other. Of four cutting edges (7) of the insert (5) which extend along the long insert sides (5a) in the longitudinal direction (12), in each case two cutting edges (7) delimit the top surfaces (9) of the insert (5) at the edge, each cutting edge (7) extending in a curve.
IPC Classes ?
- B23F 21/14 - Profile cutters of disc type
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
|
88.
|
DRILLING TOOL
Application Number |
EP2011000518 |
Publication Number |
2011/095344 |
Status |
In Force |
Filing Date |
2011-02-04 |
Publication Date |
2011-08-11 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
Schwägerl, Jürgen
|
Abstract
Drilling tool comprising at least two flutes (3a, 3b) and a chisel edge (8) having an end reduction (2), wherein the end reduction (2) merges continuously with the flutes (3a, 3b) in such a way that it forms the end of the respective flute (3a, 3b) in the region of the chisel edge (8).
IPC Classes ?
- B23B 51/02 - Twist drills
- B24B 3/32 - Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of the point of twist drills for thinning the point
- B24B 19/04 - Single purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for fluting drill shanks
|
89.
|
WEAR RESISTANT TWO-PHASE BINDERLESS TUNGSTEN CARBIDE AND METHOD OF MAKING SAME
Application Number |
US2011020333 |
Publication Number |
2011/097044 |
Status |
In Force |
Filing Date |
2011-01-06 |
Publication Date |
2011-08-11 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Bangerjee, Debangshu
- Huston, William, Roy
- Zheng, Qingjun
- Killman, Beverly, Jo
|
Abstract
An ultrafine grain two-phase binderless tungsten carbide material is disclosed. The material contains, in weight percent, ditungsten carbide in the range of about 1 to about 10 percent, up to about 1.0 percent vanadium carbide and/or chromium carbide, up to about 0.2 percent cobalt, and the balance tungsten carbide, wherein the wear resistant material has a hardness of at least about 2,900 kg/mm2 and a microstructure in which the tungsten carbide average grain size is no greater than about 0.3 microns. The material has a surprisingly good combination of wear resistance and hardness. Methods of making the material and articles made from the material are also disclosed.
IPC Classes ?
- C04B 35/56 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides
- C01B 31/34 - Tungsten or molybdenum carbides
|
90.
|
DRILL BIT AND METHOD FOR MANUFACTURING
Application Number |
US2011022681 |
Publication Number |
2011/097109 |
Status |
In Force |
Filing Date |
2011-01-27 |
Publication Date |
2011-08-11 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Schwaegerl, Juergen
- Sollfrank, Peter
|
Abstract
A method for manufacturing a drill bit (1), wherein in a first step the chip flutes (12) are ground into a round rod, in a second step the round rod is ground down to its outer diameter (15, 16) with simultaneous grinding of the drill-bit back (13), and wherein in a third step the drill-bit front (4) is ground, and a drill bit (1) having at least one chip flute (12) and one secondary cutting edge and one drill-bit back (13) adjoining the secondary cutting edge, the drill-bit back (13) sloping downwards as the distance from the secondary cutting edge increases, in order to create a clearance that becomes continuously larger as the distance from the point of intersection (19) of the secondary cutting edge with the drill-bit back (13) increases.
IPC Classes ?
- B23P 15/32 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-drills
- B24B 3/24 - Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
- B23B 51/06 - Drills with lubricating or cooling equipment
- B23B 51/02 - Twist drills
|
91.
|
ROTARY CUTTING TOOL HAVING SEALED MARGINS AND METHOD OF MAKING SAME
Application Number |
US2010058299 |
Publication Number |
2011/090551 |
Status |
In Force |
Filing Date |
2010-11-30 |
Publication Date |
2011-07-28 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Schwagerl, Jurgen
- George, Steve
- Kauper, Herbert, Rudolf
|
Abstract
A rotary cutting tool (10) includes a generally cylindrical body having a first end (12), a second end (14) and a longitudinal axis therebetween (16). A mounting portion (18) is disposed about the first end (12), a head portion (20) having an outer diameter (D) is disposed about the second end (14), and a body relief portion (22) having an outer diameter (d) less than the head portion (20) is disposed therebetween. The head portion (20) is structured to engage and cut a workpiece. A number of flutes (24) extend from the second end (14) of the cylindrical body along the head portion (20) and along at least a portion of the body relief portion (22). The head portion (20) includes a number of margin relief surfaces (30), each disposed between adjacent flutes (24) and inset a distance (t) from the outer diameter (D) of the head portion (20) and extending from the second end (14) of the cylindrical body and terminating at a margin seal (32) within the head portion (20).
|
92.
|
TOOLHOLDER AND TOOLHOLDER ASSEMBLY
Application Number |
US2010061844 |
Publication Number |
2011/087851 |
Status |
In Force |
Filing Date |
2010-12-22 |
Publication Date |
2011-07-21 |
Owner |
- KENNAMETAL INC. (USA)
- ERICKSON, Carla (USA)
|
Inventor |
Erlckson, Robert ,a.
|
Abstract
A toolholder assembly (10) for releasably holding a toolholder (50) includes a toolholder (50) having a tubular shank (56) with at least two perforations (58); a tool support member (20); a canister (30) disposed within the tool support member (20) and including at least two apertures (32); a lock rod (40) movable within the tool support member (20) in a reciprocating motion for pulling the toolholder (50) into a locked position and for releasing the toolholder (50) to an unlocked position; and at least two locking elements (36) disposed within the spaced apertures (32) of the canister (30) and engaging the lock rod (40) so that movement of the lock rod (40) causes the locking elements (36) to extend radially outward from the canister (30). The circumferentially spaced perforations (58) of the tubular shank (56) each include a primary cylindrical wall (59) and a forward facing contact surface (60) at least partially defined by a depression having a converging wall surface (61) non-concentric with the primary cylindrical wall (59) of the perforations (58).
IPC Classes ?
- B23B 29/12 - Special arrangements on tool holders
- B23B 29/14 - Special arrangements on tool holders affording a yielding support of the cutting tool, e.g. by spring clamping
- B23B 29/22 - Special arrangements on tool holders for tool adjustment by means of shims or spacers
- B23B 29/04 - Tool holders for a single cutting tool
- B23B 31/22 - Jaws in the form of balls
|
93.
|
MACHINING TOOL AND CUTTING HEAD FOR THE MACHINING TOOL
Application Number |
EP2011000109 |
Publication Number |
2011/085978 |
Status |
In Force |
Filing Date |
2011-01-13 |
Publication Date |
2011-07-21 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Schuffenhauer, Michael
- Xylander, René
|
Abstract
The invention relates to a machining tool having a holder (11) and a cutting head (1) which can be screwed into the holder (11), comprising a cutting area (3) and a coupling area (5), wherein the coupling area (5) on the cutting head (1) comprises a flat contact area (10) adjacent to the holder (11), a cylindrical threaded carrier (7) adjacent to the flat contact area (10) and having an external thread (8), and a tightening cone (9) adjacent to the threaded carrier (7), and wherein the holder (11) comprises a flat counterpart contact surface (13) for the flat contact area (10), a cylindrical internal thread (14) adjacent to the flat counterpart contact surface (13), and a hollow cone-shaped cone contact surface (15) adjacent to the internal thread (14).
IPC Classes ?
- B23B 31/11 - Retention by threaded connection
- B23C 5/10 - Shank-type cutters, i.e. with an integral shaft
|
94.
|
AN APPARATUS FOR RELEASABLY HOLDING A TUBULAR TOOLHOLDER SHANK
Application Number |
US2011020310 |
Publication Number |
2011/087949 |
Status |
In Force |
Filing Date |
2011-01-06 |
Publication Date |
2011-07-21 |
Owner |
- KENNAMETAL INC. (USA)
- ERICKSON, Carla, A. (USA)
|
Inventor |
Erickson, Robert, A.
|
Abstract
An apparatus for releasably holding a tubular toolholder shank (56) includes a tool support member (20); a canister (30) disposed within the tool support member (20); a lock rod (110) movable within the tool support member (20) in a reciprocating motion for pulling the tubular toolholder shank (56) into a locked position and for releasing the tubular toolholder shank (56) to an unlocked position; and at least two locking elements (101) engaging the lock rod (110) so that movement of the lock rod (110) causes the locking elements (101) to extend outward to engage the tubular toolholder shank (56). The lock rod (110) includes a relief cavity (118) extending rearward from a forward end (114) of the lock rod (110). The lock rod (110) has a maximum outer diameter (Dmax) and the relief cavity (118) has a maximum diameter (dmax). A ratio of the maximum diameter (dmax) of the relief cavity (118) to the maximum outer diameter (Dmax) of the front portion (111) of the lock rod (110) is greater than 1 to 4.
IPC Classes ?
- B23B 29/14 - Special arrangements on tool holders affording a yielding support of the cutting tool, e.g. by spring clamping
- B23B 29/12 - Special arrangements on tool holders
- B23B 29/04 - Tool holders for a single cutting tool
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
|
95.
|
ROUND CUTTING INSERT WITH ASYMMETRIC CHIPBREAKER FEATURE
Application Number |
US2011020070 |
Publication Number |
2011/084934 |
Status |
In Force |
Filing Date |
2011-01-04 |
Publication Date |
2011-07-14 |
Owner |
- KENNAMETAL INC. (USA)
- JOHNSTON, David Charles (USA)
|
Inventor |
- Chen, Shi
- Henry, Nicholas J.
- Mizgalski, Kent Peter
|
Abstract
A round cutting insert (10) includes a top surface (12), a clearance side surface (14) and a bottom surface (16). The top surface includes an asymmetric chipbreaker feature (30) adjacent a cutting edge (20) that includes a finishing portion (32), a roughing portion (34), and a transition portion (36). The asymmetric chipbreaker feature includes a first rake face (38) extending from the cutting edge, a second rake face (40) between a bottom face (42) and the first rake face, and a back face (44) between a central island (24) and the bottom face. The second rake face (40) and the back face (44) are sinusoidal waveforms with different periods (33, 35) to cause the distances (29, 31) from the cutting edge to the second rake face and back face to vary. The first and second rake faces are formed at different rake angles (39, 41) to provide effective chip control.
IPC Classes ?
- B23B 27/22 - Cutting tools with chip-breaking equipment
- B23B 27/14 - Cutting tools of which the bits or tips are of special material
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
- B23C 5/02 - Milling-cutters characterised by the shape of the cutter
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
- B23C 5/22 - Securing arrangements for bits or teeth
|
96.
|
CUTTING INSERT AND SHIM FOR HEAVY MACHINING OPERATIONS
Application Number |
US2010057239 |
Publication Number |
2011/068691 |
Status |
In Force |
Filing Date |
2010-11-18 |
Publication Date |
2011-06-09 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Kovac, Jeffrey, Francis
- Mylavaram Nikhilesh, Kumar Reddy
|
Abstract
A combination of a cutting insert (10) and a shim (60). The cutting insert and shim have two opposing end surfaces (12, 62) with two identical opposing major side surfaces (16, 66) and two identical opposing minor side surfaces (14, 64) extending between the minor side surfaces (14, 64). Each end surface of the insert (10) has two lowered abutment members (28), each having a shim abutment surface (30) for contacting the shim (60). One end surface (62) of the shim (60) has two raised abutment members (74), each having an insert abutment surface (76) for contacting the insert (10). The abutment surfaces (30, 76) contact each other in an area where high cutting forces occur so as to help distribute the loads encountered in the cutting operation, as well as provide protection of the insert pocket (104) in case of insert failure.
IPC Classes ?
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
- B23C 5/22 - Securing arrangements for bits or teeth
- B23B 27/16 - Cutting tools of which the bits or tips are of special material with exchangeable cutting bits, e.g. able to be clamped
|
97.
|
TOOLHOLDER CONNECTOR AND ASSOCIATED SYSTEM
Application Number |
US2010057252 |
Publication Number |
2011/066172 |
Status |
In Force |
Filing Date |
2010-11-18 |
Publication Date |
2011-06-03 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
De Souza Filho, Ruy, Frota
|
Abstract
A toolholder connector (120) having one threaded end (132) and one end (134) with a male quick change portion (140) is threadingly engaged with a first toolholder (10) having a threaded bore (12). The quick change connector (120) also has a male quick change portion (140) that is engaged within a side activated receiver (125) of a second toolholder (115). Prior to activating the receiver (125), an alignment pin (30) associated with the first toolholder (10) is lined up with alignment slot (180) associated with the second toolholder (115) such that when the two are brought together, a pre-determined radial alignment will be retained.
IPC Classes ?
- B23B 29/12 - Special arrangements on tool holders
- B23B 29/22 - Special arrangements on tool holders for tool adjustment by means of shims or spacers
- B23B 29/04 - Tool holders for a single cutting tool
- B23B 29/10 - Tool holders equipped with grooves arranged crosswise to the longitudinal direction for setting the cutting tool with adjustable counterbase for the cutting tool
- B23Q 3/12 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine for securing to a spindle in general
|
98.
|
OPTIMIZATION OF CUTTING EDGE GEOMETRY IN ROUNDED NOSE END MILLS
Application Number |
US2010056843 |
Publication Number |
2011/062901 |
Status |
In Force |
Filing Date |
2010-11-16 |
Publication Date |
2011-05-26 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Volokh, Vladimir D.
- Sharivker, Leonid B.
- Boulakhov, Sergei
|
Abstract
A rounded nose end-mill (10) modified by optimization of geometrical parameters of both the rake angle (30) and relief angle (34) along the cutting edge (29) of the rounded portion (16), wherein the rake angle and the relief angle gradually increase along the cutting edge from the full diameter of the rounded portion to the tip.
IPC Classes ?
- B23C 5/10 - Shank-type cutters, i.e. with an integral shaft
- B23C 5/12 - Cutters specially designed for producing particular profiles
- B23C 5/14 - Cutters specially designed for producing particular profiles essentially comprising curves
- B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
- B23C 5/22 - Securing arrangements for bits or teeth
|
99.
|
INERT HIGH HARDNESS MATERIAL FOR TOOL LENS PRODUCTION IN IMAGING APPLICATIONS
Application Number |
US2010056184 |
Publication Number |
2011/060038 |
Status |
In Force |
Filing Date |
2010-11-10 |
Publication Date |
2011-05-19 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Peterson, Elizabeth Ann Binky
- Huston, William Roy
- Spitsberg, Irene
- Verti, Michael James
- Brahmandam, Sudhir
|
Abstract
A tungsten carbide material for use in precision glass molding applications having 6.06-6.13 wt. % carbon, 0.20-0.55 wt. % grain growth inhibitor, less than 0.25 wt. % binder, less than 0.6% wt. % impurities, and balance being tungsten. The tungsten carbide material has a nominal grain size of less than 0.5 microns.
IPC Classes ?
- C04B 35/56 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides
- C04B 35/622 - Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C01B 31/34 - Tungsten or molybdenum carbides
- C03B 11/06 - Construction of plunger or mould
|
100.
|
COMPOSITE MATERIAL USEFUL IN ELECTROLYTIC ALUMINUM PRODUCTION CELLS
Application Number |
US2010056222 |
Publication Number |
2011/060064 |
Status |
In Force |
Filing Date |
2010-11-10 |
Publication Date |
2011-05-19 |
Owner |
KENNAMETAL INC. (USA)
|
Inventor |
- Yeckley, Russell Lee
- Lattimer, Robinson
- Landwehr, Sean Erin
|
Abstract
Composite materials comprising titanium diboride and boron nitride that are used to line electrolytic aluminum production cells (10) are disclosed. The composite materials may be used to line the side walls (14, 16) and/or bottom wall (12) of the cell (10). The ratio of titanium diboride to boron nitride may be controlled in order to provide the desired level of electrical conductivity depending upon the particular region of the cell (10) in which the liner plate (12, 14, 16) is installed. The titanium diboride/boron nitride composite materials exhibit desirable aluminum wetting behavior, and are capable of withstanding exposure to molten cryolite (20), molten aluminum (22) and oxygen at elevated temperatures during operation of the electrolytic aluminum production cells (10).
IPC Classes ?
- C22C 1/04 - Making non-ferrous alloys by powder metallurgy
- C22C 29/14 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on borides
- C22C 29/16 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on nitrides
|
|