C-TEC Constellium Technology Center

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2022 1
2021 2
2020 3
2019 1
IPC Class
B33Y 70/00 - Materials specially adapted for additive manufacturing 6
C22C 21/00 - Alloys based on aluminium 6
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma 5
C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon 4
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties 3
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Found results for  patents

1.

METHOD FOR PRODUCING AN ALUMINIUM ALLOY PART IMPLEMENTING AN ADDITIVE MANUFACTURING TECHNIQUE WITH PREHEATING

      
Document Number 03219536
Status Pending
Filing Date 2022-05-24
Open to Public Date 2022-10-06
Owner C-TEC CONSTELLIUM TECHNOLOGY CENTER (France)
Inventor
  • Chehab, Bechir
  • Shahani, Ravi

Abstract

Disclosed is a method for producing a part (20) comprising a formation of successive metal layers (201...20n), said layers being stacked on each other and each being formed by depositing an aluminium alloy (15), the aluminium alloy being subjected to an input of energy so as to become molten and, on solidifying, to form said layer, the method being characterised in that: - during production of the part, prior to the formation of each layer, the aluminium alloy powder is maintained at a temperature no lower than 25°C and below 160°C or between 300°C and 500°C; - the method comprises post-fabrication heat treatment applied to the part at a temperature between 300°C and 400°C; - post-fabrication heat treatment begins with an increase in temperature, the increase being implemented at a rate higher than 5°C per minute; - the method does not comprise dipping in solution followed by hardening.

IPC Classes  ?

  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/362 - Process control of energy beam parameters for preheating
  • B22F 10/64 - Treatment of workpieces or articles after build-up by thermal means

2.

METHOD FOR PRODUCING AN ALUMINIUM ALLOY PART

      
Document Number 03171031
Status Pending
Filing Date 2021-05-10
Open to Public Date 2021-08-12
Owner C-TEC CONSTELLIUM TECHNOLOGY CENTER (France)
Inventor
  • Chehab, Bechir
  • Shahani, Ravi

Abstract

The invention relates to a method for producing a part, comprising the production of successive solid metallic layers (201?20n), each layer being produced by depositing a metal (25) called filler metal, and said method being characterized in that the part has a specific grain structure. The invention also relates to a part obtained by means of this method and an alternative method. The alloy used in the additive manufacturing method of the invention makes it possible to obtain parts with exceptional properties.

IPC Classes  ?

  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B33Y 80/00 - Products made by additive manufacturing
  • B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • C22C 21/00 - Alloys based on aluminium

3.

METHOD FOR PRODUCING AN ALUMINIUM ALLOY PART

      
Document Number 03171379
Status Pending
Filing Date 2021-05-10
Open to Public Date 2021-08-12
Owner C-TEC CONSTELLIUM TECHNOLOGY CENTER (France)
Inventor
  • Chehab, Bechir
  • Shahani, Ravi

Abstract

The invention relates to a method for producing a part, comprising the production of successive solid metallic layers (201?20n), each layer being produced by depositing a metal (25) called filler metal, said filler metal consisting of an aluminium alloy comprising at least the following alloying elements: - Zr, in a mass fraction of 0,60 to 1.40%; - Mn, in a mass fraction of 2.00 to 5.00 %; - Ni, in a mass fraction of 1.00 to 5.00 %; - Cu, in a mass fraction of 1.00 to 5.00%. The invention also relates to a part obtained by means of this method. The alloy used in the additive manufacturing method of the invention makes it possible to obtain parts with exceptional properties.

IPC Classes  ?

  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B33Y 80/00 - Products made by additive manufacturing
  • B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • C22C 21/00 - Alloys based on aluminium

4.

PROCEDE DE FABRICATION D'UNE PIECE EN ALLIAGE D'ALUMINIUM, L'ALLIAGE COMPORTANT AU MOINS DU ZIRCONIUM ET DU MAGNESIUM

      
Document Number 03125747
Status Pending
Filing Date 2020-01-24
Open to Public Date 2020-07-30
Owner C-TEC CONSTELLIUM TECHNOLOGY CENTER (France)
Inventor
  • Chehab, Bechir
  • Shahani, Ravi

Abstract

The invention relates to a method for manufacturing a part comprising a formation of successive metal layers (201,....20n), superposed on one another, each layer being formed by depositing a filling metal, the filling metal being subjected to an input of energy so as to melt and to constitute the layer, by solidifying, the method being characterised in that the filling metal (15, 35) is an aluminium alloy comprising the following alloy elements, in percentages by weight: Mg: 0%-6%; Zr: 0.7%-2.5%, preferably according to a first variant >1% and <2.5%; or preferably according to a second variant 0.7-2%; or even 0.7-1.6%; or even 0.7-1.4%; or even 0.8-1.4%; or even 0.8-1.2%; at least one alloy element chosen from Fe, Cu, Mn, Ni and/or La: at least 0.1%, preferably at least 0.25%, more preferably at least 0.5% per element; impurities: <0.05% individually, and preferably <0.15% in total.

IPC Classes  ?

  • C22C 21/06 - Alloys based on aluminium with magnesium as the next major constituent
  • B23K 26/342 - Build-up welding
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B33Y 80/00 - Products made by additive manufacturing
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • C22C 21/00 - Alloys based on aluminium
  • C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
  • C22F 1/047 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent

5.

METHOD FOR MANUFACTURING AN ALUMINUM ALLOY PART

      
Document Number 03125851
Status Pending
Filing Date 2020-01-24
Open to Public Date 2020-05-14
Owner C-TEC CONSTELLIUM TECHNOLOGY CENTER (France)
Inventor Chehab, Bechir

Abstract

The invention relates to a method for manufacturing a part (20) comprising a formation of successive metal layers (201... 20n) superposed on one another, each layer being formed by depositing a filler metal (15, 25), energy being supplied to the filler metal in such a way that it melts and, upon solidifcation, constitutes said layer, the method being characterized in that the filler metal (15, 25) is an aluminium alloy comprising the following alloy elements (in wt %): -Zr: 0.5 to 2.5%, preferably, according to a first variant, 0.8 to 2.5%, more preferably 1 to 2.5%, even more preferably 1.3 to 2.5%; or preferably, according to a second variant, 0.5 to 2%, more preferably 0.6 to 1.8%, more preferably 0.6 to 1.6%, more preferably 0.7 to 1.5%, more preferably 0.8 to 1.5%, more preferably 0.9 to 1.5%, even more preferably 1 to 1.4%; - Fe: 0% to 3%, preferably 0.5 to 2.5%; preferably, according to a first variant, 0.8 to 2.5%, preferably 0.8 to 2%, more preferably 0.8 to 1.2%; or preferably, according to a second variant, 1.5 to 2.5%, preferably 1.6 to 2.4%, more preferably 1.7 to 2.3%; - optionally Si: = 0.3%, preferably < 0.2%, more preferably < 0.1%; - optionally Cu: = 0.5%, preferably 0.05 to 0.5%, preferably 0.1 to 0.4%; - optionally Mg: = 0.2%, preferably < 0.1%, preferably < 0.05%; - other alloying elements: < 0.1% individually, and in total < 0.5%; - impurities: < 0,05 % individually, and in total < 0,15 %; the remainder being aluminium.

IPC Classes  ?

  • B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
  • B23K 26/342 - Build-up welding
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B22F 10/20 - Direct sintering or melting
  • B22F 10/64 - Treatment of workpieces or articles after build-up by thermal means
  • B23K 35/28 - Selection of soldering or welding materials proper with the principal constituent melting at less than 950°C
  • C23C 24/04 - Impact or kinetic deposition of particles
  • C22C 21/00 - Alloys based on aluminium
  • C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon

6.

PROCESS FOR MANUFACTURING AN ALUMINUM ALLOY PART

      
Document Number 03102419
Status Pending
Filing Date 2019-06-24
Open to Public Date 2020-01-02
Owner C-TEC CONSTELLIUM TECHNOLOGY CENTER (France)
Inventor
  • Chehab, Bechir
  • Jarry, Philippe

Abstract

The invention relates to a process for manufacturing a part comprising a formation of successive solid metal layers (20i...20n), superposed on one another, each layer describing a pattern defined using a numerical model {M), each layer being formed by the deposition of a metal (25), referred to as solder, the solder being subjected to an input of energy so as to start to melt and to constitute, by solidifying, said layer, wherein the solder takes the form of a powder (25), the exposure of which to an energy beam (32) results in melting followed by solidification so as to form a solid layer (20i...20n), the process being characterized in that the solder (25) is an aluminum alloy comprising at least the following alloy elements: - Si, in a weight fraction of from 0 to 4%, preferably from 0.5% to 4%, more preferentially from 1% to 4%, and more preferentially still from 1% to 3%; - Fe, in a weight fraction of from 1% to 15%, preferably from 2% to 10%; - V, in a weight fraction of from 0 to 5%, preferably from 0.5% to 5%, more preferentially from 1% to 5%, and more preferentially still from 1% to 3%; at least one element chosen from: Ni, La and/or Co, in a weight fraction of from 0.5% to 15%, preferably from 1% to 10%, more preferentially from 3% to 8% each for Ni and Co, in a weight fraction of from 1% to 10%, preferably from 3% to 8% for La, and in a weight fraction of less than or equal to 15%, preferably less than or equal to 12% in total. The invention also relates to a part obtained by this process. The alloy used in the additive manufacturing process according to the invention makes it possible to obtain parts with remarkable characteristics.

IPC Classes  ?

  • C22C 21/00 - Alloys based on aluminium
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • B22F 7/02 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite layers
  • C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon

7.

PROCESS FOR MANUFACTURING ALUMINIUM ALLOY PARTS

      
Document Number 03102411
Status Pending
Filing Date 2019-04-05
Open to Public Date 2019-08-15
Owner C-TEC CONSTELLIUM TECHNOLOGY CENTER (France)
Inventor Chehab, Bechir

Abstract

The invention relates to a process for manufacturing parts (20), the process including the formation of successive, superimposed solid metal layers (201...20n), each layer describing a pattern defined on the basis of a numerical model (M), each layer being formed by a metal (25), the so-called filler metal, which is deposited and exposed to energy supplied so as to cause the filler metal to melt and to form, upon its solidification, the layer, in which process the filler metal is in the form of a powder (25) which, when exposed to an energy beam (32), melts and then solidifies, forming a solid layer (201...20n), the process being characterised in that the filler metal (25) is an aluminium alloy comprising at least the following alloying elements: Ni, in a proportion by mass of 1 to 6%, preferably 1 to 5%, more preferably 2 to 4%; Mn, in a proportion by mass of 1 to 7%, preferably 1 to 6%, more preferably 2 to 5%; Zr, in a proportion by mass of 0.5 t 4%, preferably 1 to 3%; Fe, in a proportion by mass of maximum 1%, preferably 0.05 to 0.5%, more preferably 0.1 to 0.3%; Si, in a proportion by mass of maximum 1%, preferably of maximum 0.5%. The invention also concerns a part obtained by this process. The alloy used in the additive manufacturing process according to the invention makes it possible to obtain parts having remarkable properties.

IPC Classes  ?

  • C22C 21/00 - Alloys based on aluminium
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • C22C 21/12 - Alloys based on aluminium with copper as the next major constituent
  • C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
  • B22F 3/10 - Sintering only