A machining system includes, a tool configured to machine a workpiece, a motor configured to rotate the tool or the workpiece, a controller configured to control the motor, a measurement device configured to acquire a load current of the motor, the controller is configured to change a rotational speed of the motor when a Mahalanobis distance exceeds a threshold, the Mahalanobis distance is a value determined by using a parameter based on the load current acquired by the measurement device in a specific machining range of the workpiece, and the parameter based on the load current includes a parameter obtained by performing Fourier transform on the load current and a measured value of the load current.
G05B 19/404 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
G05B 19/4065 - Monitoring tool breakage, life or condition
[Means for Solution] A gear member includes a tooth having a tooth flank whose profile is an involute curve, wherein in a cross-section of the tooth perpendicular to a face width direction, the tooth has a depression, near a top land, hollowed in the tooth flank relative to the involute curve.
A mold comprising: a die that has a hollow section penetrating therethrough in a first direction; a first core that splits the hollow section into a plurality of spaces which are arranged in a direction orthogonally intersecting the first direction; and an upper punch and a lower punch that are fitted into each of the plurality of spaces, wherein the first core comprises a partial region that is provided midway in the first direction in a side surface facing the plurality of spaces, and the partial region includes a protrusion protruding from the side surface.
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 11/08 - 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 co-operating with moulds carried by a turn-table
4.
CORE PIECE, STATOR CORE, STATOR, AND ROTATING ELECTRIC MACHINE
Provided is a core piece that constitutes a stator core for an axial gap type rotating electric machine, the core piece comprising a column-shaped first member extending in a direction along an axis of the stator core, wherein a peripheral surface of the first member has, on at least part of the surface contacting a winding of a coil, a plurality of grooves along a direction in which the winding is wound.
This powder is an aggregate of a plurality of particles containing metal elements. The plurality of particles each comprise a matrix, and a plurality of precipitates dispersed in the matrix. The matrix contains a first component, and the plurality of precipitates each contain a second component. The first component and the second component are a combination that has a two-liquid phase separation region in a phase diagram. The content ratio of the first component and the second component corresponds to the two-liquid phase separation region. The standard error of the first component content in the plurality of particles is not more than 1.2 in terms of mass, and the standard error of the second component content in the plurality of particles is not more than 1.2 in terms of mass.
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
H01H 1/025 - Composite material having copper as the basic material
H01H 11/04 - Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
6.
POWDER, METAL COMPONENT, ELECTRICAL CONTACT, METHOD FOR PRODUCING POWDER, AND METHOD FOR PRODUCING METAL COMPONENT
This powder is an aggregate of a plurality of particles containing metal elements. The plurality of particles each comprise a matrix, and a plurality of precipitates dispersed in the matrix. The matrix contains a first component, and the plurality of precipitates each contain a second component. The standard error of the first component content in the plurality of particles is not more than 1.2 in terms of mass, and the standard error of the second component content in the plurality of particles is not more than 1.2 in terms of mass.
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 7/00 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder
B33Y 80/00 - Products made by additive manufacturing
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
H01H 1/025 - Composite material having copper as the basic material
H01H 11/04 - Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
A sintered member composed of a metal, wherein the sintered member has a relative density of 95% or greater and has at least one of a hole for which the diameter x1 (mm) and depth y1 (mm) satisfy specific requirements and a groove for which the width x2 (mm) and depth y2 (mm) satisfy specific requirements.
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
A method of manufacturing a sintered gear includes preparing a green compact having two gear-shaped end surfaces, one on each of two sides in an axial direction of the green compact, and having a plurality of teeth on an outer peripheral surface formed between the two end surfaces; chamfering an edge of the teeth by a brush; and sintering the green compact. The brush is a wheel-type brush including a disk-shaped wheel and a bristle member radially protruding from an outer periphery of the wheel. The chamfering includes disposing the brush with respect to the green compact such that the axial direction of the green compact and an axial direction of the wheel intersect with each other; bringing a tip of the bristle member into contact with a tooth bottom edge; and relatively moving the brush in a circumferential direction of the green compact while rotating the brush.
A core piece includes a first member in a column form and a second member in a plate form, the first member and the second member being configured by a green compact in which the first member and the second member are integrally formed, the green compact includes a plurality of soft magnetic particles having a flat shape, a first average aspect ratio of the soft magnetic particles is greater than or equal to 1.2 in a first cross section of the first member, a second average aspect ratio of the soft magnetic particles is greater than or equal to 1.2 in a second cross section of the second member, each of the first average aspect ratio and the second average aspect ratio is related to an average of lengths of soft magnetic particles in a direction of the stator core.
H02K 1/02 - DYNAMO-ELECTRIC MACHINES - Details of the magnetic circuit characterised by the magnetic material
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
H02K 15/02 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
10.
CORE PIECE, STATOR CORE, STATOR, AND ROTARY ELECTRIC MACHINE
A core piece that is circularly arranged to construct a stator core of an axial gap type rotary electric machine includes: a first member in a column form extending in an axial direction of the stator core; a second member in a plate form disposed on a first end side of the axial direction in the first member; and a third member in a plate form disposed on a second end side of the axial direction in the first member, the first member has a peripheral surface connecting with the second member and the third member, the second member has a protruding portion projecting outwardly from the peripheral surface of the first member, the third member has a protruding portion projecting outwardly from the peripheral surface of the first member, and the first member, the second member, and the third member are configured by an integrally molded green compact.
H02K 1/02 - DYNAMO-ELECTRIC MACHINES - Details of the magnetic circuit characterised by the magnetic material
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
11.
SINTERED MATERIAL, SIZING DEVICE, AND METHOD FOR MANUFACTURING SINTERED MATERIAL
A cylindrical sintered material made of metal, in which one of an inner peripheral surface and an outer peripheral surface of the sintered material includes: a plurality of helical teeth arranged in parallel along a circumferential direction of the sintered material; and a sizing mark provided on at least a part of a tooth bottom surface, a tooth surface, and a tooth tip surface of each of the helical teeth, the helical tooth has a tooth profile error less than or equal to 6 μm, and the helical tooth has a tooth trace error less than or equal to 27 μm.
B22F 5/06 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of threaded articles, e.g. nuts
B22F 3/24 - After-treatment of workpieces or articles
12.
TOOL MAIN BODY AND METHOD FOR PRODUCING TOOL MAIN BODY
A tool main body to which an insert is attachable, in which the tool main body is made of sintered metal material, and the sintered metal material includes a parent phase made of a metal and a plurality of pores present in the parent phase.
Provided is a sizing apparatus including: a die set including a die plate that holds a die provided with a through hole to which a workpiece is to be supplied, and upper and lower punches that are to be inserted into the through hole to press the workpiece; a press main body that includes punch driving mechanisms that actuate the punches and in which the die set is configured to be attached to and detached from a predetermined position; and a turntable that is rotated on the die plate and supplies a workpiece to the die and discharges a workpiece from the die. The die set includes the turntable, and a supporting base on which the turntable is placed. The supporting base includes an axis positioning portion that is provided coaxially with a central axis of the turntable and positions the central axis at a predetermined position of the supporting base.
B29C 43/08 - Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable with circular movement
B30B 11/10 - 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 co-operating with moulds carried by a turn-table intermittently rotated
14.
METHOD FOR MANUFACTURING SINTERED COMPONENT AND SINTERED COMPONENT
A method for manufacturing a sintered component includes a step of making a green compact having a relative density of at least 88% by compression-molding a base powder containing a metal powder into a metallic die, a step of machining a groove part having a groove width of 1.0 mm or less in the green compact by processing groove with a cutting tool, and a step of sintering the green compact in which the groove part is formed after the step of forming the groove part.
B22F 3/16 - Both compacting and sintering in successive or repeated steps
B22F 3/24 - After-treatment of workpieces or articles
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
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
15.
STATOR CORE, STATOR, DYNAMO-ELECTRIC MACHINE, AND METHOD FOR MANUFACTURING STATOR CORE
Provided is a stator core used in an axial-gap dynamo-electric machine, wherein: the stator core has a peripheral surface of each of a plurality of teeth, a first end surface of each of the plurality of teeth, and at least one second end surface on the side opposite from the first end surface; each of the plurality of teeth is configured from a powder magnetic core; the powder magnetic core is provided with a plurality of coated particles; each of the plurality of coated particles has a metal particle and an insulating coating; the first end surface has first regions configured from a cross-section of the metal particles, and second regions configured from the insulating coating between the first regions; the peripheral surface is configured from an oxide including constituent elements of a soft magnetic material; the average thickness of the oxide in the peripheral surface is 10 μm or less; and the difference between the maximum value and the minimum value of a plurality of first heights is 0.02 mm or less.
H02K 15/02 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
The present invention provides an axial gap motor having a stator and a rotor, the rotor comprising a rotating plate that rotates around a rotation axis, and the rotating plate comprising a functional part that causes the rotational force of the rotor to act on an object by contacting the object.
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
A motor comprising: a shaft; a bearing that rotatably supports the shaft; a rotor that is integrally fixed to the shaft; and a stator that is disposed such that a gap of a designed length is provided between the stator and the rotor in the axial direction of the shaft, wherein the stator is provided with a stator core composed of a molded powder compact, the stator core has a first surface that faces the gap and a second surface that is provided to the opposite side from the first surface in the axial direction, and grinding marks are provided to at least one among the first surface and the second surface.
H02K 1/12 - Stationary parts of the magnetic circuit
H02K 1/06 - DYNAMO-ELECTRIC MACHINES - Details of the magnetic circuit characterised by the shape, form or construction
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
A motor according to the present invention includes a plurality of coils disposed on a circumference centered on an axis of rotation, a wiring member disposed coaxially with the axis of rotation, and a plurality of conducting wires. The wiring member has a first face, a second face that is a face on an opposite side from the first face, and a plurality of through holes that connect the first face and the second face. One of the first face and the second face is a face that faces the plurality of coils. The first face includes a plurality of first grooves that have annular forms surrounding the axis of rotation, and the second face includes a plurality of second grooves in a direction intersecting the plurality of first grooves in plan view of the first face. The plurality of through holes are each provided at each intersecting portion of the plurality of first grooves and the plurality of second grooves. The plurality of conducting wires are disposed in the plurality of first grooves, the plurality of second grooves, and the plurality of through holes.
H02K 3/38 - Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
A crosslinked fluororesin-coated pump rotor manufacturing method is a method for manufacturing a pump rotor having flat rotor side surfaces and provided with a coating layer of a crosslinked fluororesin on each rotor side surface, the method including: screen-printing a dispersion liquid obtained by dispersing particles of a fluororesin in a solvent, on the rotor side surface by using a screen plate having an opening having a shape in which the opening does not protrude from an outer peripheral edge of the rotor side surface; then heating the pump rotor to a temperature equal to or higher than a melting point of the fluororesin to bake the fluororesin on the rotor side surface; and then irradiating the fluororesin with radiation to crosslink the fluororesin.
F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
C08L 27/12 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
A crosslinked fluororesin-coated rotor manufacturing method is a method for manufacturing an annular outer rotor of an internal gear pump including the outer rotor, and an inner rotor, a side surfaces of the outer rotor being coated with a crosslinked fluororesin, an inner peripheral surface of the outer rotor not being coated with the crosslinked fluororesin, the method including: using an outer masking jig for covering the inner peripheral surface in a state where the side surfaces of the outer rotor are exposed; coating the outer rotor with an uncrosslinked fluororesin in a state where the outer masking jig is mounted to the outer rotor; and then irradiating the fluororesin with radiation in a state where the outer masking jig is removed from the outer rotor, to crosslink the fluororesin.
B05D 1/32 - Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
B05D 3/06 - Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
This motor comprises a rotor, a stator disposed with a gap of a design length in the rotating shaft direction of the rotor, a shaft that is the rotating shaft of the rotor, and a bearing for rotatably supporting the shaft, wherein the rotor and the shaft, or the shaft and the bearing are connected to each other by a press-fit structure.
H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
H02K 5/16 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
H02K 15/02 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
22.
AXIAL GAP MOTOR, AND METHOD FOR MANUFACTURING AXIAL GAP MOTOR
The present invention provides an axial gap motor comprising: a rotor; a stator positioned across a gap of a designed length in the direction of a rotation shaft of the rotor; a shaft that is the rotating shaft of the rotor; a first bearing that rotatably supports the shaft; a case having a first plane in which the stator is placed; and an adjustment member that supports the first bearing. The adjustment member has a male thread that is threaded into the case, and the first bearing moves in the axial direction of the shaft due to rotation of the adjustment member.
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
23.
Core piece, stator core, stator, and rotary electric machine
A core piece that is circularly arranged to construct a stator core of an axial gap type rotary electric machine includes: a first member in a column form extending in an axial direction of the stator core; a second member in a plate form disposed on a first end side of the axial direction in the first member; and a third member in a plate form disposed on a second end side of the axial direction in the first member, the first member has a peripheral surface connecting with the second member and the third member, the second member has a protruding portion projecting outwardly from the peripheral surface of the first member, the third member has a protruding portion projecting outwardly from the peripheral surface of the first member, and the first member, the second member, and the third member are configured by an integrally molded green compact.
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
24.
PROCESSING SYSTEM AND METHOD FOR MANUFACTURING METAL MEMBER
A processing system comprises a tool that processes a workpiece composed of a metal member, a motor that rotates the workpiece or the tool, a control unit that controls the motor, and a measurement unit that obtains an electrical quantity of the motor, wherein the control unit changes a rotational speed of the motor based on a difference between a first electrical quantity and a second electrical quantity, the first electrical quantity is an electrical quantity obtained by the measurement unit while the motor rotates before the workpiece is processed, and the second electrical quantity is an electrical quantity obtained by the measurement unit while the workpiece is processed.
G05B 19/4155 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme
B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
25.
METAL MEMBER, PROCESSING SYSTEM, AND METHOD FOR MANUFACTURING METAL MEMBER
A first plate includes: a first hole penetrating a first front surface and a first back surface; an opening edge constituting the first hole, a front-side first opening edge being provided in the first front surface; a back-side first opening edge constituting the first hole, the back-side first opening edge being provided in the first back surface; and a first chamfered portion provided on at least one of the front-side first opening edge and the back-side first opening edge, a second plate includes: a second hole including a back-side second opening edge provided in at least a second back surface; and a back-side second chamfered portion provided at the back-side second opening edge, an axis of the first hole and an axis of the second hole are coaxial, and the at least one of the first chamfered portion and the back-side second chamfered portion have a cutting mark.
B23Q 15/08 - Control or regulation of cutting velocity
B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
B23Q 17/10 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting speed or number of revolutions
B23Q 17/20 - Arrangements for indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
A sintered member having an annular shape, includes: a first face facing one side in an axial direction; a second face facing the other side in the axial direction; an inner peripheral face connected to an inner peripheral edge of the first face; and a plurality of tooth groups and a plurality of tooth-missing parts which are alternately disposed along a circumferential direction of the inner peripheral face. The second face includes a plurality of ball grooves arranged in parallel in the circumferential direction. Each tooth group includes a plurality of spline teeth that are continuous in the circumferential direction of the peripheral face. The number of plurality of tooth-missing parts is the same as the plurality of ball grooves. Positions in a radial direction in which the plurality of tooth-missing parts are formed are within ranges in the radial direction in which the ball grooves are formed.
F16D 27/112 - Magnetically-actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs
C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
B22F 5/08 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of cam discs
Provided is an axial gap-type rotary electric machine in which a first stator, a second stator, and a rotor are arranged in a direction of a rotary shaft of the rotor. The first stator includes a first coil and a first core. The second stator includes a second coil and a second core. The first core includes an annular first yoke, a plurality of first teeth, and a first mark indicating a reference position in a circumferential direction of the first yoke. The second core includes an annular second yoke, a plurality of second teeth, and a second mark indicating a reference position in a circumferential direction of the second yoke. When viewed in the direction of the rotary shaft, the first mark and the second mark are symmetrically positioned with respect to the rotary shaft.
H02K 16/04 - Machines with one rotor and two stators
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
28.
PROCESSING SYSTEM, AND METHOD FOR MANUFACTURING PROCESSED PRODUCT
A processing system that successively processes a plurality of workpieces includes: a tool that processes each of the workpieces; a motor that rotates the tool or each of the workpieces; a control unit that controls the motor; and a measurement unit that obtains an electrical quantity of the motor, where the control unit includes a first control unit that controls a rotational speed of the motor based on a first difference between a first electrical quantity and a second electrical quantity, the first electrical quantity is an electrical quantity obtained by the measurement unit at a specific processed portion of a first workpiece currently being processed, the second electrical quantity is an electrical quantity obtained by the measurement unit during processing of a portion of a second workpiece corresponding to the specific processed portion, and the second workpiece is a workpiece that was processed prior to the first workpiece.
B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
B23Q 17/10 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting speed or number of revolutions
B23Q 15/08 - Control or regulation of cutting velocity
A sintered gear of annular shape which has a composition including a metal, has a plurality of pores in a surface thereof, and has a relative density of 93% or more and 99.5% or less.
A sintered member including Fe as a main component thereof, includes a composition including Ni, Cr, Mo, and C, and a remainder including Fe and inevitable impurities, and a mixed-phase composition including a martensite phase and a residual austenite phase, wherein a Ni-content occupying the sintered member is larger than 2 mass % and less than or equal to 6 mass %, when a total content of elements included in the sintered member is regarded as 100 mass %, and a variation width of a Vickers hardness from a surface to a predetermined depth of the sintered member is less than or equal to 100 HV.
A mold component manufacturing method comprising a step for producing a built-up part formed from high-speed steel on a base material formed from high-speed steel, wherein: the step for producing the built-up part includes repeating a step for producing a powder layer and a step for radiating a laser beam onto the powder layer, thereby stacking solidified layers each obtained by solidifying a powder layer; the step for producing the powder layer includes spreading a powder formed from high-speed steel on a first surface; the first surface is the front surface of the base material or the front surface of each of the solidified layers; and the step for radiating the laser beam is carried out in a state in which the temperature of the first surface has been heated to at least 130°C.
A sintered high-speed steel body equipped with a base metal and a solidification layer which is continuously provided across the surface of the base metal, wherein: the base metal comprises a high-speed steel; the solidification layer comprises a high-speed steel which has a different composition than does the high-speed steel which constitutes the base metal; and the boundary between the base metal and the solidification layer is not visible in an observation image in which a cross-section which intersects said surface is magnified by a factor of 200.
A processing system according to the present invention is provided with a tool that processes a workpiece, a motor that rotates the tool or the workpiece, a controller that controls the motor, and a measuring instrument that obtains a load current of the motor. The controller changes rotation speed of the motor when the Mahalanobis distance is greater than a threshold value, the Mahalanobis distance being a value obtained by using a parameter based on the load current obtained by the measuring instrument within a specific processing range in the workpiece, the parameter based on the load current including a parameter obtained through a Fourier transform of the load current and a measured value of the load current.
G05B 19/404 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
A method for manufacturing a sintered gear comprising the steps of: preparing a cylindrical green compact; gear-cutting the green compact with a hob; and sintering the gear-hobbed green compact, wherein the hob is such that a ratio of a number of cutting edges thereof per round to a number of starts thereof exceeds 8.
B23P 15/14 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
B22F 5/08 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of cam discs
B22F 3/16 - Both compacting and sintering in successive or repeated steps
C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
A manufacturing system according to an aspect of the present disclosure includes: a molding apparatus configured to uniaxially press raw material powder containing metal powder to fabricate a powder compact whose whole or part has a relative density of 93% or more; a robot processing apparatus including an articulated robot configured to machine the powder compact to fabricate a processed molded article; and an induction heating sintering furnace configured to sinter the processed molded article by high frequency induction heating to fabricate a sintered product.
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
B22F 3/16 - Both compacting and sintering in successive or repeated steps
This motor manufacturing method comprises a step of preparing parts of an axial gap motor and a step of assembling the parts. The parts include: a rotor; a stator; a shaft that is the rotational axis of the rotor; a bearing for rotatably supporting the shaft; a case having a first plane on which the stator and the bearing are placed; and a shim disposed between the first plane and the bearing or between the first plane and the stator. The step of preparing the parts has: a step of obtaining a predicted length of the gap between the rotor and the stator in consideration of the actual dimension of the stator; and a step of determining the thickness of the shim on the basis of the difference between the design length of the gap and the predicted length thereof.
H02K 15/16 - Centering rotors within the stator; Balancing rotors
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
37.
METHOD OF MAKING SINTERED BODY, AND POWDER COMPACT
A method of making a sintered body includes a step of preparing raw material powder containing powder of inorganic material, a step of producing a powder compact having a high-density portion with a relative density of 93% or more and a low-density portion with a relative density of less than 93% by compressing the raw material powder injected into a mold, a step of producing a machined compacted part by machining at least the high-density portion of the powder compact, and a step of sintering the machined compacted part to make a sintered body, wherein a perimeter shape of a cavity constituted by the mold in a cross-section perpendicular to an axial direction of the mold is such than a maximum stress applied to an inner perimeter surface of the mold during a compacting process using the mold is less than or equal to 2.6 times an imaginary maximum stress that is applied to an inner perimeter surface of an imaginary mold during a compacting process using the imaginary mold, the imaginary mold having an imaginary cavity that has a same area as the cavity and that has a circular perimeter shape.
A method of making a sintered part includes a step of applying a machining process to a compacted part with a tool to make a machined compacted part having a cogwheel shape, and a step of sintering the machined compacted part to make a sintered part, wherein the machining process is such that a surface of the compacted part on a side where the tool exits is supported by a plate member having a tooth pattern with same specifications as a tooth pattern of the cogwheel shape, and the tool is used to machine portions of the compacted part corresponding to tooth spaces of the plate member.
A sintered gear manufacturing method comprising a step for preparing a green compact having gear-shaped end faces on both sides in an axial direction and multiple teeth on an outer peripheral surface formed between the two end faces, a step for chamfering, by using a brush, edges of the teeth constituted by the end faces and the outer peripheral surface, and a step for sintering the chamfered green compact, wherein: the brush is a wheel-type brush having a disc-like wheel and bristles radially projecting from the outer periphery of the wheel; and the chamfering step is a step in which the brush is arranged with respect to the green compact such that the axial direction of the green compact and the axial direction of the wheel intersect with each other, the tip of the bristles is brought into contact with tooth-bottom edges constituted by the end faces of the green compact and the tooth-bottom surfaces of the teeth on the outer peripheral surface, and the brush is relatively moved, while being rotated, along a circumferential direction of the green compact.
B22F 5/08 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of cam discs
B23P 15/14 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
B23F 19/10 - Chamfering the end edges of gear teeth
A sintered material with a composition composed of an iron-based alloy and a structure in which the number of compound particles 0.3 μm or more in size is less than 200 per 100 μm×100 μm unit area in a cross section, wherein the sintered material has a relative density of 93% or more.
A core for use in an axial gap rotating electric machine, the core including: a yoke having an annular plate shape; and a plurality of teeth having a columnar shape arranged at intervals in a circumferential direction of the yoke, wherein the yoke has: an outer-circumferential face; an inner-circumferential face; a first face having a flat shape connecting the outer-circumferential face and the inner-circumferential face to each other; and a plurality of recessed portions connected to the first face, each of the plurality of teeth has an outer-circumferential face protruding in an axial direction of the yoke with respect to the first face, each of the plurality of recessed portions are connected to at least a portion of each one of the plurality of teeth in a circumferential direction of the outer-circumferential face, all shortest distances between at least one of an outer-circumferential edge of the first face and an inner-circumferential edge of the first face and the outer-circumferential faces of the plurality of teeth are 4 mm or less, and the yoke and the plurality of teeth are made of an integrally-molded powder compact.
A core used in an axial-gap rotating electric device includes an annular back yoke and a plurality of teeth protruding in an axial direction that is perpendicular to a first flat surface of the back yoke. The plurality of teeth are provided on the first flat surface at intervals in a circumferential direction. The back yoke and the teeth are constituted of an integrally-molded powder compact. A first curved section that connects a peripheral surface of each tooth and the first flat surface of the back yoke is provided at a corner between the tooth and the back yoke. The first curved section has a curvature radius ranging between 0.2 mm and 1.5 mm inclusive.
H02K 1/02 - DYNAMO-ELECTRIC MACHINES - Details of the magnetic circuit characterised by the magnetic material
H02K 3/22 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of hollow conductors
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
43.
SINTERED BODY, SIZING DEVICE, AND METHOD FOR MANUFACTURING SINTERED BODY
This cylindrical sintered body is composed of a metal, wherein either the inner circumferential surface or the outer circumferential surface of the sintered body has: a plurality of diagonal teeth that are aligned in the circumferential direction of the sintered body; and sizing marks provided on at least a part of a tooth bottom surface, a tooth surface, or a tooth crest surface of the diagonal teeth, wherein the tooth profile error of the diagonal teeth is 6 μm or less, and the tooth trace error of the diagonal teeth is 27 μm or less.
B22F 3/24 - After-treatment of workpieces or articles
B22F 5/06 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of threaded articles, e.g. nuts
A core that is used in an axial-gap rotary electric machine and that includes a body, and frame-shaped flange portions. The body includes an annular yoke and columnar teeth that are arranged in a circumferential direction of the yoke. The flange portions are fixed to end portions of the respective teeth. The yoke and the teeth are composed of a single powder compact. Each of the flange portions is composed of a powder compact that has a through-hole. The end portion of each of the teeth is inserted in the through-hole, and an end surface of each of the teeth is exposed from the through-hole. A ratio of an area of the end surface of each of the teeth to an area within an outer circumferential edge of each of the flange portions is 7.5% or more in a plan view in an axial direction of the yoke.
Core pieces that are arranged in an annular shape to create a stator core of an axial gap-type rotating electrical machine, wherein: each core piece comprises a column-shaped first member that extends in the axial direction of the stator core, a plate-shaped second member that is provided on a first end side in the axial direction of the first member, and a plate-shaped third member provided on a second end side in the axial direction of the first member; the first member has a peripheral surface that is connected to the second member and the third member; the second member has a protruding portion that overhangs further to the outside than the peripheral surface of the first member; the third member has a protruding portion that overhangs further to the outside than the peripheral surface of the first member; and the first member, the second member and the third member are constituted by an integrally molded powder compact.
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
A column-shaped first member and a plate-shaped second member are constituted by an integrally molded powder compact. The powder compact has a plurality of flat soft magnetic particles, and a first average aspect ratio of the soft magnetic particles in a first cross section of the first member is 1.2 or more. A second average aspect ratio of the soft magnetic particles in a second cross section of the second member is 1.2 or more. The first average aspect ratio is L12/L11, which is the ratio of an average length L11 and an average length L12 in the first cross section. The second average aspect ratio is L22/L21, which is the ratio of an average length L21 and an average length L22 in the second cross section. The average length L11 is the average length of soft magnetic particles along the radial direction of a stator core. The average length L12 is the average length of soft magnetic particles along the axial direction of the stator core. The average length L21 is the average length of soft magnetic particles along the radial direction of the stator core. The average length L22 is the average length of soft magnetic particles along the circumferential direction of the stator core.
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
A core for use in an axial-gap rotary electric machine is annular and includes a plurality of core pieces into which the core is divided in a circumferential direction. Each core piece includes a yoke portion and a tooth portion that is formed integrally with the yoke portion and that projects from the yoke portion in an axial direction. Each yoke portion includes a plurality of protrusions provided on one side surface connected to the yoke portion of an adjacent one of the core pieces, and a plurality of recesses provided on other side surface connected to the yoke portion of another adjacent one of the core pieces, the recesses corresponding to the protrusions. An interval between the protrusions is 80% or less of a length of the one side surface of the yoke portion, the length being a direct distance between inner and outer peripheries of the yoke portion.
H02K 1/02 - DYNAMO-ELECTRIC MACHINES - Details of the magnetic circuit characterised by the magnetic material
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
48.
Stator core, rotating electric device, and stator core manufacturing method
This stator core is a stator core for a rotating electric machine of an axial gap type and includes a body portion formed by a compaction-molded body of soft magnetic powder whose surfaces are coated with insulating films, wherein the body portion is provided with one or a plurality of through holes.
H02K 1/02 - DYNAMO-ELECTRIC MACHINES - Details of the magnetic circuit characterised by the magnetic material
H01F 1/24 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
H01F 3/08 - Cores, yokes or armatures made from powder
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
This axial gap motor includes: a stator; and a rotor provided so as to be opposed to the stator in an axial direction. The rotor includes an annular rotor yoke, and a plurality of magnets provided to contact one surface of the rotor yoke so as to be arranged at predetermined intervals along a circumferential direction with magnetic poles thereof being different alternately. The one surface includes a plurality of facing areas facing and contacting the plurality of magnets, and a non-facing area not facing the plurality of magnets. The non-facing area includes partial areas each located between a pair of the facing areas adjacent to each other in the circumferential direction among the plurality of facing areas. The partial areas are formed to be recesses recessed in the axial direction relative to the facing areas.
H02K 15/02 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
50.
METHOD FOR COLLECTING IRON-BASED POWDER AND METHOD FOR MANUFACTURING SINTERED BODY
A method for collecting an iron-based powder includes the steps of; preparing a raw material powder containing a first metal powder containing 90% by mass or more of iron; forming a green compact by subjecting the raw material powder to uniaxial pressing using a die; machining the green compact; and collecting a second metal powder having an average particle diameter of 50 μm or more and 500 μm or less from machining chips generated in the step of machining.
B22F 9/04 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
B22F 3/16 - Both compacting and sintering in successive or repeated steps
51.
TOOL MAIN BODY AND TOOL MAIN BODY PRODUCTION METHOD
A tool main body to which an insert is attached. The tool main body comprises a sintered metal material. The sintered metal material comprises: a matrix phase comprising metal; and a plurality of pores in the matrix phase.
B22F 7/00 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting
B23C 5/16 - Milling-cutters characterised by physical features other than shape
B23C 5/20 - Milling-cutters characterised by physical features other than shape with removable cutter-bits or teeth
B23C 9/00 - MILLING - Details or accessories so far as specially adapted to milling machines or cutters
B23P 15/30 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools lathes or like tools
B23P 15/34 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools milling cutters
A method for manufacturing a powder magnetic core, including a step of compacting a raw material powder to form a compact, a step of performing a first heat treatment on the compact to obtain a first heat-treated body, and a step of performing a second heat treatment on the first heat-treated body to obtain a second heat-treated body, wherein the raw material powder contains a soft magnetic powder and a lubricant that has a melting point Tm, the first heat treatment is performed in a temperature range from Tm to Tm+50° C. inclusive for a time longer than 10 minutes, and the second heat treatment is performed in a temperature range from 400° C. to 900° C. inclusive for a time of 3 minutes to 90 minutes inclusive, the temperature range of the second heat treatment being higher than the temperature range of the first heat treatment.
H01F 1/22 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
B22F 3/24 - After-treatment of workpieces or articles
A sintered body manufacturing apparatus includes a compacting apparatus configured to press a raw powder containing a metal powder into a green compact, a machining apparatus configured to perform a cutting operation on the green compact to produce an unsintered materials, and a green compact conveying path configured to connect the compacting apparatus in series to the machining apparatus to convey green compacts one by one from the compacting apparatus to the machining apparatus.
B22F 3/16 - Both compacting and sintering in successive or repeated steps
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
B22F 3/24 - After-treatment of workpieces or articles
Provided is a rotary pump including: a pump rotor having a flat first rotor side surface that faces one side in the axial direction and a flat second rotor side surface that faces the other side in the axial direction; and a housing that rotatably accommodates the pump rotor. The housing has: a hollow cylindrical ring member that encloses the axial outer side of the pump rotor and is open at both ends in the axial direction; a first side member that is removably attached to one end section in the axial direction of the ring member and that guides the sliding of the first rotor side surface along a flat first crosslinking fluororesin flat surface that comprises a crosslinking fluororesin; and a second side member that is removably attached to the other end section in the axial direction of the ring member and that guides the sliding of the second rotor side surface along a flat second crosslinking fluororesin flat surface that comprises a crosslinking fluororesin.
F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
A rotary pump equipped with a pump rotor which has a flat lateral rotor surface facing the axial direction, also equipped with a housing main body which has an axial-direction opening and a flat flange surface formed around the opening, and rotatably houses the pump rotor in the opening in a manner such that the lateral rotor surface and the flange surface are aligned in the same plane, and also equipped with a cover member which has a flat contact surface pressed against and secured to the flange surface by being bolted thereto and a flat sliding guide surface which slides on and guides the lateral rotor surface, wherein the cover member is formed from a crosslinked fluorine resin and a metal body, the metal body is provided with the contact surface and a recess which recesses in the axial direction relative to the contact surface in a region which corresponds to the sliding guide surface, and the crosslinked fluorine resin fills the recess interior in a manner such that the sliding guide surface is formed in the same plane as is the contact surface.
F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
Provided is a crosslinked fluororesin-coated rotor manufacturing method by which an outer rotor of an internal gear pump is manufactured, the crosslinked fluororesin-coated rotor including: an annular outer rotor having an inner circumferential surface, which forms a plurality of internal teeth, and a side surface orthogonal to the axial direction; and an inner rotor having an outer circumferential surface, which forms a plurality of external teeth engaging with the internal teeth, and rotating about a position eccentric from the center of the outer rotor on the inner diameter side of the outer rotor, wherein the side surface of the outer rotor is coated with a crosslinked fluororesin, and the inner circumferential surface of the outer rotor is not coated with the crosslinked fluororesin. In the crosslinked fluororesin-coated rotor manufacturing method: an outer masking jig is used that covers the inner circumferential surface while the side surface of the outer rotor is exposed; a position determination engagement tooth portion for determining the circumferential position with respect to the outer rotor through engagement with the inner circumferential surface of the outer rotor is formed on the outer masking jig; the outer rotor is coated with a non-crosslinked fluororesin while the outer masking jig is mounted on the outer rotor; and then while the outer masking jig is separated from the outer rotor, the fluororesin is crosslinked by being irradiated with radiation.
F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
57.
PRODUCTION METHOD FOR CROSSLINKED FLUORINE RESIN COATING PUMP ROTOR, CROSSLINKED FLUORINE RESIN COATING PUMP ROTOR, PRODUCTION METHOD FOR CROSSLINKED FLUORINE RESIN COATING PUMP COVER, AND CROSSLINKED FLUORINE RESIN COATING PUMP COVER
A method for producing a crosslinked fluorine resin coating pump rotor having a flat rotor lateral surface, and being provided with a coating layer of a crosslinked fluorine resin on the rotor lateral surface, the method comprising: screen-printing a liquid dispersion in which particles of a fluorine resin are dispersed in a solvent, on the rotor lateral surface, using a screen plate having an opening shaped so that the opening does not extend off an outer peripheral edge of the rotor lateral surface; thereafter, heating the pump rotor to a temperature equal to or higher than the melting point of the fluorine resin to bake the fluorine resin of the rotor lateral surface; and thereafter, irradiating the fluorine resin with radiation to crosslink the fluorine resin.
F04C 2/10 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
The present disclosure pertains to a mesh-belt-type continuous sintering furnace with which it is possible to manufacture a sintered body having exceptional surface properties and in which a mesh belt has a long service life. The mesh-belt-type continuous sintering furnace according to the present disclosure comprises a furnace body part (2), and a mesh belt (3) that travels inside the furnace body part (2) and transports a material (10) to be heated, wherein: the mesh belt (3) is configured in a reticulate shape from a plurality of stainless steel wires (31); the furnace body part (2) has a preheating part (21) that preheats the material (10) to be heated, a sintering part (22) that sinters the preheated material (10) to be heated, and piping (25) that jets an inert gas; the preheating part (21) has at least one heating device (211) that performs combustion at a mixing ratio in which the proportion of hydrocarbon gas is higher than in a theoretical air-fuel ratio; the sintering part (22) has a heating device (221) by which the atmosphere inside the sintering part (22) can be controlled; and the piping (25) has jetting openings that are opened toward the mesh belt (3) from within a range from beside the mesh belt (3) to below the mesh belt (3), the jetting openings being provided from the furthest-downstream heating device (211) of the preheating part (21) to the upstream side of the sintering part (22).
F27B 9/12 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
F27B 9/24 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
F27D 3/12 - Travelling or movable supports or containers for the charge
59.
SINTERED MATERIAL AND METHOD OF MANUFACTURING SINTERED MATERIAL
A sintered material includes a composition composed of iron-based alloy, and a texture containing 200 or more and 1350 or less of compound particles having a size of 0.3 μm or more per unit area of 100 μm×100 μm in a cross section, and a relative density is 93% or more.
A core is a core included in a rotor or a stator of an axial-gap rotating electrical machine, in which the core includes a block-shaped first member and a plate-shaped second member that are constituted by powder compacts; the first member includes a first surface that faces the second member, and a first coupling portion that is formed at the first surface; the second member includes a second surface that faces the first surface, and a second coupling portion that is formed at the second surface and that is coupled to the first coupling portion; one of the first coupling portion and the second coupling portion is constituted by a protrusion, and the other one is constituted by a recess having a shape corresponding to the protrusion.
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
Provided is a sizing apparatus including: a die set including a die plate that holds a die provided with a through hole to which a workpiece is to be supplied, and upper and lower punches that are to be inserted into the through hole to press the workpiece; a press main body that includes punch driving mechanisms that actuate the punches and in which the die set is configured to be attached to and detached from a predetermined position; and a turntable that is rotated on the die plate and supplies a workpiece to the die and discharges a workpiece from the die. The die set includes the turntable, and a supporting base on which the turntable is placed. The supporting base includes an axis positioning portion that is provided coaxially with a central axis of the turntable and positions the central axis at a predetermined position of the supporting base.
B29C 43/08 - Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable with circular movement
B30B 11/10 - 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 co-operating with moulds carried by a turn-table intermittently rotated
62.
Method for producing sintered member, and sintered member
[Solution] A gear member comprising a gear having a tooth flank comprising involute curves. In a cross-section orthogonal to the tooth width direction of the gear, the gear comprises recessed sections that are recessed relative to the involute curves, in an area on the gear tip side of the tooth flank.
This rotary electrical machine is an axial gap type rotary electrical machine in which a first stator, a second stator, and a rotor are arrayed in the axial direction of a rotary shaft of the rotor. The first stator is provided with a first coil, and a first core comprising a powder magnetic core on which the first coil is disposed. The second stator is provided with a second coil, and a second core comprising a powder magnetic core on which the second coil is disposed. The first core is provided with an annular first yoke having a first yoke surface, a plurality of first teeth projecting from the first yoke surface, and a first mark indicating a position which serves as a reference in the circumferential direction for the first yoke. The second core is provided with an annular second yoke having a second yoke surface opposing the first yoke surface, a plurality of second teeth projecting from the second yoke surface, and a second mark indicating a position which serves as a reference in the circumferential direction for the second yoke. When viewed in the axial direction of the rotary shaft, the first and second marks are disposed at positions symmetrical to each other with respect to the rotary shaft.
H02K 21/24 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos
65.
SINTERED MEMBER AND METHOD FOR PRODUCING SINTERED MEMBER
A sintered member which is mainly composed of Fe, while having a composition that contains Ni, Cr, Mo and C, with the balance being made up of Fe and unavoidable impurities, and which is provided with a multiphase structure that is composed of a martensite phase and a residual austenite phase. With respect to this sintered member, if the total content of the elements contained in the sintered member is taken as 100% by mass, the Ni content in the sintered member is more than 2% by mass but not more than 6% by mass; and the fluctuation range of the Vickers hardness from the surface to a predetermined depth of the sintered member is 100 HV or less.
Provided is a sintered member having a circular shape, comprising: a first surface facing one side in an axial direction; a second surface facing the other side in the axial direction; an inner peripheral surface connected to an inner peripheral edge of the first surface; and a plurality of tooth groups and a plurality of missing tooth portions that are provided alternately along a circumferential direction of the inner peripheral surface, wherein the second surface has a plurality of ball grooves arranged in parallel in the circumferential direction, the tooth groups each have a plurality of spline teeth continuous in the circumferential direction of the peripheral surface, the number of the plurality of missing tooth portions is the same as the number of the plurality of ball grooves, radial positions where the plurality of missing tooth portions are formed are within a radial range where the plurality of ball grooves are formed, and a circumferential range where the plurality of missing tooth portions are formed overlaps with a circumferential range where the plurality of ball grooves are formed.
F16D 1/06 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
67.
METAL MEMBER, PROCESSING SYSTEM, AND METHOD FOR MANUFACTURING METAL MEMBER
A metal member including: a first plate part having a first front face and a first rear face; a second plate part having a second front face and a second rear face; and a leg part that secures the first plate part and the second plate part such that the first rear face and the second rear face are spaced apart and face each other. The first plate part has: a first hole that penetrates the first front face and the first rear face; a first opening edge on a front side provided on the first front face, and a first opening edge on a rear side provided on the first rear face, which are opening edges constituting the first hole; and a first chamfered portion provided on at least one of the first opening edge on the front side and the first opening edge on the rear side. The second plate part has: a second hole having at least a second opening edge on a rear side provided on the second rear face; and a second chamfered portion on a rear side provided on the second opening edge on the rear side. An axis of the first hole and an axis of the second hole are coaxial, and at least one of the first chamfered portion and the second chamfered portion on the rear side has a cutting trace.
G05B 19/416 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
B23Q 15/013 - Control or regulation of feed movement
68.
Manufacturing facility and manufacturing method of sintered product
A manufacturing facility of a sintered product according to one aspect of the present disclosure includes: a molding apparatus configured to press-mold raw material powder containing metal powder to fabricate powder compacts; a marking apparatus configured to mark a product ID including a serial number on each of the powder compacts; a batch processing apparatus configured to perform a predetermined batch process on intermediate materials which are the powder compacts or sintered articles of the powder compacts; a reader apparatus configured to read the product ID of each of the intermediate materials loaded in a batch case of the batch processing apparatus; and a server apparatus configured to communicate with the apparatuses. The server apparatus includes: a communication unit configured to receive a read value of the product ID from the reader apparatus; and a control unit configured to specify a load position of each of the intermediate materials in the batch case based on the received read value.
B22F 3/24 - After-treatment of workpieces or articles
G05B 19/18 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
A machining system comprising: a tool that machines a workpiece comprising a metal member; a motor that rotates the workpiece or the tool; a control unit that controls the motor; and a measurement unit that acquires the electric charge of the motor, wherein the control unit changes the rotational speed of the motor on the basis of the difference between a first electric charge and a second electric charge. The first electric charge is the electric charge acquired by the measurement unit while the motor is rotating and before the workpiece is machined, and the second electric charge is the electric charge acquired by the measurement unit while the workpiece is being machined.
G05B 19/404 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
G05B 19/4065 - Monitoring tool breakage, life or condition
B23Q 15/12 - Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
70.
PROCESSING SYSTEM AND METHOD OF MANUFACTURING PROCESSED OBJECT
This processing system, which successively processes a plurality of workpieces, comprises: a tool for processing the workpieces; a motor that rotates the tool or the workpieces; a control unit that controls the motor; and a measurement unit that acquires the electricity amount of the motor, wherein the control unit includes a first control unit that controls the rotation speed of the motor on the basis of the first difference between a first electricity amount and a second electricity amount, the first electricity amount is an electricity amount acquired by the measurement unit at a specific processing point in a first workpiece currently being processed, the second electricity amount is an electricity amount acquired by the measurement unit during processing of a portion of a second workpiece corresponding to the specific processing point, and the second workpiece is a workpiece that has been processed earlier than the first workpiece.
G05B 19/416 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control of velocity, acceleration or deceleration
B23Q 15/08 - Control or regulation of cutting velocity
B23Q 17/09 - Arrangements for indicating or measuring on machine tools for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
71.
SINTERED MATERIAL AND METHOD FOR PRODUCING SINTERED MATERIAL
A sintered material which comprises a matrix that is composed of a metal and a plurality of pores that are present in the matrix, wherein the average cross-sectional area of the pores is 500 μm2 or less and the relative density of the pores is from 93% to 99.5% in an arbitrary cross section.
A method for manufacturing a sintered component includes a step of making a green compact having a relative density of at least 88% by compression-molding a base powder containing a metal powder into a metallic die, a step of machining a groove part having a groove width of 1.0 mm or less in the green compact by processing groove with a cutting tool, and a step of sintering the green compact in which the groove part is formed after the step of forming the groove part.
B22F 3/16 - Both compacting and sintering in successive or repeated steps
B22F 3/24 - After-treatment of workpieces or articles
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 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
A joined component includes a first member provided with a first joint surface having an arranging part where a brazing filler material is arranged, a second member joined to the first member by brazing, and provided with a second joint surface having an accommodating recess that opposes the arranging part, a guide groove formed in the first joint surface or the second joint surface, and extending from the arranging part or the accommodating recess toward a fringe of the first joint surface or the second joint surface, and a chamfer formed along the fringe of the first joint surface or the second joint surface, and the guide groove communicates to the chamfer.
In a sizing device equipped with a turntable having a plurality of accommodation holes that accommodate workpieces, carrying the workpiece in each of the accommodation holes to a through hole of a die disposed at a workpiece shaping position one by one, and causing the workpiece to be pressed by upper and lower punches, while each of the accommodation holes is moved from a workpiece supply position to a workpiece taking-out position by the turntable being rotated about a rotation axis, the sizing device includes a plurality of identification information holding units, a supply-side input unit, a shaping position read unit, a punch control unit, and a shaping position input unit.
This linked body is provided with a first member consisting of a powder compression molded body of soft magnetic powder, a second member separate from the first member, and a tapping screw which penetrates through the second member to the first member to link the first member and the second member, wherein: at least the first member, among the first member and the second member, is provided with a pilot hole into which ridge portions of the tapping screw bite, the inner diameter of the pilot hole being at least equal to 83% and at most equal to 95% of the diameter of the ridges of the tapping screw and greater than the diameter of valleys of the tapping screw; and a helical gap surrounded by an outer circumferential surface of the tapping screw and an inner circumferential surface of the pilot hole is provided.
This sintered gear manufacturing method includes a step of preparing a cylindrical green compact, a step of cutting gear teeth on the green compact with a hob, and a step of sintering the green compact subjected to the gear cutting, wherein in the hob, wherein the ratio of the number of cutting edges per circle to the number of threads is more than 8.
B23P 15/14 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
A manufacturing system according to an embodiment of the present disclosure is provided with: a molding device for fabricating a powder compression molding, the relative density of all or a portion of which is at least 93%, by uniaxially compressing a raw material powder that includes metal powder; a robot processing device that has an articulated robot and that fabricates a processed molding by mechanically processing the powder compression molding; and an induction heating sintering furnace for fabricating a sintered compact by sintering the processed molding using high-frequency induction heating.
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
The sintered body production method comprises: a step for preparing a raw powder containing a powder of an inorganic material; a step for loading the raw powder into a mold and compressing the same to produce a green compact having a high-density region having a relative density of 93% or higher and a low-density region having a relative density of lower than 93%; a step for machining at least the high-density region of the green compact to produce a machined compact; and a step for sintering the machined compact to obtain a sintered body. In a cross-section orthogonal to an axial direction of the mold, the circumferential edge of a cavity formed by the mold is shaped such that the maximum stress applied to an inner circumferential surface of the mold when the mold is used for molding is 2.6 times or less of the virtual maximum stress which would be applied to an inner circumferential surface of a virtual mold, which is provided with a virtual cavity having a circular circumferential edge and the same area as that of the cavity, when the virtual mold is used for molding.
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
Provided is a method for manufacturing a sintered component, which can suppress occurrence of edge chipping when a through-hole is formed in a powder-compact green body and also has a good productivity. The method for manufacturing a sintered component includes a molding step of press-molding a raw material powder containing a metal powder and thus fabricating a powder-compact green body; a drilling step of forming a hole in the powder-compact green body using a drill; a sintering step of sintering the powder-compact green body after drilling, wherein the drill used for drilling has a circular-arc shaped cutting edge on a point portion thereof.
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 5/06 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of threaded articles, e.g. nuts
A method for producing a sintered compact, comprising a step for manufacturing a gear-shaped machined molding by performing mechanical machining on a powder molding with a tool and a step for manufacturing a sintered compact by sintering the machined molding. In the mechanical machining, the surface of the powder molding on the side where the tool passes through is supported by a plate-shaped member on which tooth profiles of the same specifications as the gear-shaped tooth profiles are formed, and the tool machines the portions of the powder molding that correspond to the tooth roots of the plate-shaped member.
A method for manufacturing a dust core, including: a step of preparing a raw material powder including a coated pure iron powder composed of a plurality of pure iron particles each having an insulating coating layer, a coated iron alloy powder composed of a plurality of iron alloy particles each having an insulating coating layer, and a metal soap;
a step of manufacturing a molded article by performing a compression molding of the raw material powder filled in a mold; and a step of performing a heat treatment of the molded article to eliminate distortions in the coated pure iron powder and the coated iron alloy powder, wherein a difference Tm−Td between a melting point Tm of the metal soap and a temperature Td of the mold in the step of manufacturing the molded article is greater than or equal to 90° C.
H01F 1/24 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
B22F 3/24 - After-treatment of workpieces or articles
B22F 1/105 - Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing inorganic lubricating or binding agents, e.g. metal salts
B22F 1/16 - Metallic particles coated with a non-metal
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
84.
Iron-based sintered body, method for laser-marking the same, and method for manufacturing the same
A method for laser-marking an iron-based sintered body includes a first step of forming with a first laser beam a plurality of dotted recesses with a predetermined depth in an identification mark area of a surface of an iron-based sintered body, and a second step of flattening with a second laser beam the surface within the identification mark area other than the dotted recesses. The first laser beam has an irradiation energy per unit area greater than an irradiation energy per unit area of the second laser beam.
B23K 26/082 - Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
B23K 26/359 - Working by laser beam, e.g. welding, cutting or boring for surface treatment by providing a line or line pattern, e.g. a dotted break initiation line
B23K 26/352 - Working by laser beam, e.g. welding, cutting or boring for surface treatment
B22F 3/24 - After-treatment of workpieces or articles
B23K 26/06 - Shaping the laser beam, e.g. by masks or multi-focusing
This sintered material has: a composition constituted of an iron-based alloy; and a structure in which, in a cross-section, the number of 0.3 µm or larger compound particles present per a 100 µm × 100 µm unit surface area is 200 to 1,350. The relative density is 93% or greater.
C21D 9/32 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
C22C 33/02 - Making ferrous alloys by powder metallurgy
This sintered material has: a composition constituted of an iron-based alloy; and a structure in which, in a cross-section, the number of 0.3 µm or larger compound particles present per a 100 µm × 100 µm unit surface area is less than 200. The relative density is 93% or greater.
B22F 3/24 - After-treatment of workpieces or articles
B22F 5/08 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of cam discs
C21D 9/32 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
C22C 33/02 - Making ferrous alloys by powder metallurgy
A sintered material having a relative density of at least 96% and comprising an iron-based alloy composition comprising Ni, C and at least one element selected from the group consisting of Mo, Mn, Cr, B and Si, with the remainder being made up of Fe and impurities, and a system in which, in a cross section of a surface layer from the surface to 200μm towards the interior, at most 250 compound particles having a size of at least 0.3μm are present per 100μm×100μm unit area.
B22F 5/08 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of cam discs
C21D 9/32 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
H01F 1/24 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
This core is used in an axial gap rotating electric machine and provided with an annular plate-shaped yoke and a plurality of columnar teeth disposed in the circumferential direction of the yoke at intervals. The yoke has an outer circumferential surface, an inner circumferential surface, a planar first surface connecting the outer circumferential surface and the inner circumferential surface, and a plurality of recess portions connected to the first surface. The plurality of teeth each have an outer peripheral surface projecting in the axial direction of the yoke with respect to the first surface. The plurality of recess portions are each connected to at least a part of the outer peripheral surface of each of the plurality of teeth in the circumferential direction. All of the shortest distances between at least one of the outer and inner circumferential edges of the first surface and the outer pheripheral surfaces of the respective plurality of teeth are less than or equal to 4 mm. The yoke and the plurality of teeth are configured by an integrally molded green compact molding.
This green compact manufacturing method is provided with: a first step for preparing a mold provided with a die, a lower punch, a first upper punch, and a second upper punch; a second step for filling raw material powder into a hollow portion surrounded by a first inner peripheral surface, a second inner peripheral surface, and a third inner peripheral surface of the die, in a state in which an end surface of the lower punch is located within a region surrounded by the third inner peripheral surface, an end surface of the first upper punch is located in an opening of the second inner peripheral surface, and the border between an end surface and a cylindrical surface of the second upper punch is at the same position as the end surface of the first upper punch; and a third step for lowering the first upper punch and the second upper punch relative to the die, and raises the lower punch to obtain a hollow semi-spherical green compact by compressing the raw material powder from the top and the bottom.
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
B22F 3/035 - Press-moulding apparatus therefor with one or more of the parts thereof being pivotally mounted
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
H01F 1/057 - Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
91.
Machining method, method for manufacturing planetary carrier, and planetary carrier
A machining method for forming an opening through a workpiece, serving as a green compact, by moving a milling tool in a radial direction relative to the workpiece is provided. The milling tool includes a first milling tool and a second milling tool. The method includes a pre-machining step of using the first milling tool, and forming the first sidewall surface by rotating the first milling tool so as to cause cutting edges of the first milling tool to cut the workpiece from the acute angle corner to the obtuse angle corner, while leaving a cutting allowance on the second sidewall surface; and a post-machining step of using the second milling tool whose cutting edges are reversed from the cutting edges of the first milling tool, and forming the second sidewall surface by rotating the second milling tool so as to cause the cutting edges of the second milling tool to cut the cutting allowance from the acute angle corner to the obtuse angle corner.
This core is used for an axial-gap type rotary electric machine, is annular, and is provided with a plurality of core pieces which are divisional portions, along the circumferential direction, of the core. Each of the core pieces has a yoke part, and teeth part formed integrally with the yoke part and projected in the axial direction from the yoke part. The yoke part includes a plurality of projections provided to one side surface to be connected to a yoke part of an adjacent one of the core pieces, and a plurality of recesses which are provided to the other side surface to be connected to a yoke part of the other adjacent one of the core pieces and which correspond to the corresponding projections. A gap between the projections is 80% or smaller than the length of the side surface of the yoke part defined by a direct distance between the outer and inner peripheries of the yoke part.
A core for use in an axial gap type rotary electric machine comprises: a main body; and a plurality of frame-shaped flanges, wherein the main body includes an annular yoke and a plurality of columnar teeth arranged side by side in a circumferential direction of the yoke, each of the flanges is fixed to a tip of the corresponding tooth, the yoke and the plurality of teeth are configured of an integrated powder compact, each of the flanges is configured of a powder compact having a through hole, the tip of the tooth is inserted into the through-hole, the end face of the tooth is exposed from the through-hole, and in a plan view in the axial direction of the yoke, a ratio of an area of the end face of the tooth to an area in an outer peripheral edge of the flange is 7.5% or more.
A method according to one aspect of the present disclosure is a laser marking method for a powder compact containing metal powder, which includes: a first step of scanning with laser light of first power which is weaker over a predetermined area in a surface of the powder compact, to melt and smooth inside of the predetermined area; and a second step of scanning with laser light of second power which is greater, to form a dot formed of a recess of a predetermined depth at a predetermined location in the predetermined area.
A powder magnetic core includes a compact including soft magnetic powder, and an insulating-resin coating that covers a portion of a surface of the compact. A ratio of an area of the insulating-resin coating to a surface area of the compact is lower than or equal to 85%, and a maximum depth of unevenness on a surface of the insulating-resin coating is smaller than or equal to 20 μm.
H01F 1/26 - Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
This core is used for an axial gap rotating electric machine and is provided with an annular back yoke and a plurality of teeth projecting in the axial direction vertical to a first plane of the back yoke. The plurality of teeth are provided in the circumferential direction of the first plane at intervals. The back yoke and the teeth are constituted by an integrally molded green compact. The corner portions of the teeth and the back yoke have first curved surface portions connecting the peripheral surfaces of the teeth and the first plane of the back yoke, wherein the curvature radius of each of the first curved surface portions is 0.2 mm to 1.5 mm, inclusive.
This stator core, for use in an axial gap type rotating electric device, is provided with a body configured from a pressed compact of a soft magnetic powder, the surface of which is covered with an insulating layer. One or multiple through-holes are provided in the body.
H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
H02K 1/02 - DYNAMO-ELECTRIC MACHINES - Details of the magnetic circuit characterised by the magnetic material
H02K 15/02 - Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
This core, provided in a rotor or a stator of an axial gap type rotating electrical machine, is provided with a block-shaped first member and a plate-shaped second member which are configured using powder compression molded bodies, wherein: the first member is provided with a first surface facing the second member, and a first linking portion formed on the first surface; the second member is provided with a second surface facing the first surface, and a second linking portion which is formed on the second surface and which links to the first linking portion; one of the first linking portion and the second linking portion is configured as a protuberance, and the other is configured as a recess having a shape corresponding to the protuberance; and the front shape when the first linking portion is seen from a direction orthogonal to the first surface, and the front shape when the second linking portion is seen from a direction orthogonal to the second surface are ring shapes or intermittent ring shapes having a portion that is not connected.
The throwaway insert includes a base and a cutting edge member. The cutting edge member includes a rake face, a flank face, a first connecting face, a second connecting face, and a first ridgeline serving as a cutting edge. The rake face includes a main surface and a first chamfer provided at an edge tip portion of the cutting edge member, the edge tip portion including an extreme tip portion of the cutting edge member. In a plan view from an upper surface of the base, the flank face, the first connecting face, and the second connecting face are located external to the base. The first chamfer is inclined relative to the main surface so as to increase a thickness of the cutting edge member as the first chamfer is closer to the main surface.
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