EP3941715A1 - Procédé de fabrication d'une piece en alliage d'aluminium par fabrication additive et piece en alliage d'aluminium obtenue selon ledit procédé - Google Patents
Procédé de fabrication d'une piece en alliage d'aluminium par fabrication additive et piece en alliage d'aluminium obtenue selon ledit procédéInfo
- Publication number
- EP3941715A1 EP3941715A1 EP20721629.2A EP20721629A EP3941715A1 EP 3941715 A1 EP3941715 A1 EP 3941715A1 EP 20721629 A EP20721629 A EP 20721629A EP 3941715 A1 EP3941715 A1 EP 3941715A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- particles
- mixture
- powders
- alloy
- manufacturing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/34—Process control of powder characteristics, e.g. density, oxidation or flowability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
- C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
- C22C32/0036—Matrix based on Al, Mg, Be or alloys thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/64—Treatment of workpieces or articles after build-up by thermal means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/05—Light metals
- B22F2301/052—Aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2302/00—Metal Compound, non-Metallic compound or non-metal composition of the powder or its coating
- B22F2302/25—Oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2304/00—Physical aspects of the powder
- B22F2304/10—Micron size particles, i.e. above 1 micrometer up to 500 micrometer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
- B23K15/0046—Welding
- B23K15/0086—Welding welding for purposes other than joining, e.g. build-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Definitions
- the present invention relates to the general field of manufacturing aluminum alloy part by additive manufacturing.
- the invention relates to a method of manufacturing aluminum alloy parts from a powder mixture containing aluminum-based particles and yttrin particles.
- the invention also relates to an aluminum alloy part obtained with this process.
- the invention is particularly advantageous since it makes it possible to remedy the problems of hot cracking of cracking aluminum alloys in additive manufacturing processes involving melting.
- the invention finds applications in many industrial fields, and in particular in the automotive, aeronautics or even energy fields (for example, for the manufacture of heat exchangers).
- the different manufacturing processes of metal alloy parts by additive manufacturing have in common the use of the raw material in the form of powders and to shape the metal alloy via a step of melting these powders. .
- the various additive manufacturing processes concerned include, in particular, powder bed fusion processes (or PBF for "Powder Bed Fusion” in English terminology) and processes for depositing material under concentrated energy (or DED for " Directed Energy Deposition ”in Anglo-Saxon terminology).
- PBF processes consist in melting certain regions of a bed of powder, for example by means of a laser beam.
- DED processes consist of bringing the solid material, for example in the form of wire or powder, to melt it, for example by means of a laser beam, and to deposit the molten material.
- the chemical composition of the powder alloy is changed.
- Scamalloy shade (APWORKS ⁇ ). It is a light alloy comprising aluminum and magnesium, modified with zirconium and scandium, developed specifically for additive manufacturing.
- AhSc primary particles precipitate from the liquid and act as seeds for the growth of grains of the Al matrix.
- Scandium therefore allows a refinement of the microstructure and the development of equiaxed dendritic solidification.
- Scandium is a particularly expensive element, which significantly increases the costs of the raw material (by a factor of 4 compared to a standard aluminum powder).
- Another solution consists in adding nanoparticles of a so-called germinating material, less expensive than scandium, to the aluminum powder to promote equiaxial solidification.
- aluminum alloy powders are mixed with nanoparticles in Zr, Ta, Nb, Ti or even in one of their oxides, nitrides, hydrides, borides, carbides and aluminides to manufacture parts.
- parts are manufactured by selective laser melting (also denoted SLM) from, for example, a mixture comprising: B
- An object of the present invention is to provide a method of manufacturing parts made of aluminum alloys which do not exhibit cracks, the method having to be simple to implement and inexpensive.
- the present invention provides a method of manufacturing an aluminum alloy part by additive manufacturing comprising at least one step during which a layer of a mixture of powders is melted and then solidified,
- the mixture of powders comprising:
- the volume percentage of second particles in the mixture of powders ranging, preferably, from 0.5% to 5%.
- the invention differs fundamentally from the prior art by the addition of particles of yttrium oxide (Y2O3) to the aluminum-based powder.
- Y2O3 yttrium oxide
- the addition of such particles makes it possible to promote an equiaxial solidification structure and thus eliminate cracking in the final part.
- yttrium oxide gives rise to germinating AUY particles by reaction with aluminum according to the following reactions: Indeed, even if Yttrium oxide appears to be more thermodynamically stable than alumina regardless of temperature (see Ellingham diagram shown in Figure 1 and obtained from data extracted from Chu et al.
- the release of the metal Y can take place by dissolving the oxide precursor (or the second particles) in the metal bath.
- yttrin is a stable oxide, easy to handle and / or to store, with respect to metallic elements known to be highly reducing.
- the second particles have a larger dimension ranging from 5nm to 2pm, preferably from 10nm to 400nm, and even more preferably from 30nm to 50nm.
- the volume percentage of second particles in the mixture of powders ranges from 1% to 3%.
- the first particles have a larger dimension ranging from 10 pm to 100 pm, for example from 10 to 45 pm, and preferably from 20 to 65 pm.
- the additional elements are chosen from Cu, Si, Zn, Mg, Fe, Ti, Mn, Zr, Va, Ni, Pb, Bi and Cr.
- the aluminum alloy is alloy 7075, alloy 6061, alloy 2219 or alloy 2024.
- the manufacturing process is a selective laser melting process.
- the manufacturing process is a selective melting process by electron beam.
- the material cost of an aluminum alloy 6061 is about 60 € / kg and the material cost of a mixture of powders comprising the aluminum alloy 6061 and yttrin (2% by volume) is about 66 € / kg;
- the invention also relates to an aluminum alloy part, obtained according to the method described above, the part comprising yttrin.
- the part is devoid of any cracking / fissure.
- the part is a heat exchanger.
- FIG. 1 previously described is an Ellingham diagram representing the stabilities of aluminum oxide (Al 2 0 3 ) and of yttrium oxide (Y 2 0 3 ),
- FIG. 2 schematically represents a mixture of powders according to a particular embodiment of the process of the invention.
- the process for manufacturing an aluminum alloy part by additive manufacturing comprises the following successive steps: a) provide a mixture of powders comprising, and preferably consisting of:
- first powder comprising first particles 10 made of a first material comprising at least 80% by weight of aluminum and up to 20% by weight of one or more additional elements
- a second powder comprising second particles 20 made of a second material, the second material being yttrium oxide,
- step d) cooling the plurality of molten areas in step c) so as to form a plurality of solidified zones, this plurality of solidified zones constituting the first elements of the parts to be constructed.
- steps b), c) and d) can be repeated at least once so as to form at least one other solidified zone on the first solidified zone.
- the process is repeated until the final shape of the part is obtained.
- the first powder mixture layer is formed on a substrate.
- yttrin particles 20 to the first aluminum-based particles 10 of interest makes it possible to obtain an equiaxial solidification structure and a final piece of aluminum alloy without cracking.
- the first particles 10 are functionalized by the second particles 20 (FIG. 2).
- the second particles 20 consist of yttrin.
- the second yttrium oxide powder preferably represents from 0.5% to 5% by volume of the mixture of powders, preferably from 1% to 3%.
- the first particles 10 have a larger dimension ranging from 10 pm to 100 pm and the second particles 20 have a larger dimension ranging from 5 nm to 2 pm and, preferably, from 10 nm to 400 nm.
- the first particles 10 and the second particles 20 are elements which may be of spherical, ovoid or elongated shape.
- the particles are substantially spherical and their largest dimension is their diameter.
- the first powder is formed of first particles 10 of a first material.
- the first material comprises at least 80% by mass of aluminum.
- the first particles 10 can comprise up to 20% of one or more additional elements (also called alloying elements). These elements are preferably chosen from zinc, magnesium, copper, silicon, iron, manganese, titanium, vanadium, bismuth, lead, nickel, zirconium and chromium. Preferably, the additional element or one of the additional elements is magnesium.
- the alloy is an aluminum alloy 7075, an alloy 2024, an alloy 2219 or an aluminum alloy 6061.
- the mixture of powders provided in step a) is produced upstream of the additive manufacturing process.
- the first powder and the second powder are mixed with the dynamic mixer BD, for example with a Turbula ® mixer.
- the dynamic mixer BD for example with a Turbula ® mixer.
- Turbula ® mixer Alternatively, it could be a mechanosynthesis process.
- a sufficiently energetic beam is used to melt at least the first particles 10.
- the deposited layer can be locally melted or completely melted.
- the melting step makes it possible to create melted patterns in the layer of the mixture of powders.
- One or more zones of molten particles can be made to form the desired pattern.
- the particles 10 forming the pattern melt completely so as to lead, during solidification (step d), to one or more zones solidified in an aluminum alloy.
- steps b), c) and d) can be repeated at least once so as to form at least one other solidified zone on the first solidified zone.
- the process is repeated until the final shape of the part is obtained.
- the non-solidified powders are then removed and the final part is detached from the substrate.
- the part obtained, according to one of these processes, can be subjected to an annealing step (heat treatment) to reduce internal stresses and improve mechanical properties.
- annealing step heat treatment
- the parameters of the manufacturing process by laser fusion on a powder bed are:
- it is an electron beam fusion process on a powder bed (EBM).
- EBM powder bed
- the machines used for additive manufacturing processes include, for example, a powder delivery system ("powder delivery system”), a device for spreading and homogenizing the surface of the powder (“Roller” or “ Blade ”), a beam (for example an infrared laser beam at a wavelength of approximately 1060nm), a scanner to direct the beam, and a substrate (also called a plate) which can descend vertically (along a Z axis perpendicular to the bed of powder).
- the assembly can be confined in a closed and inerted enclosure, to control the atmosphere, but also to prevent the dissemination of powders.
- the invention particularly finds applications in the field of energy, and more particularly, heat exchangers, in the field of aeronautics, and in the field of the automobile.
- a cube shaped part with dimensions 10mm * 10mm * 12mm is made by printing by SLM.
- the part is obtained from a mixture of two powders: an aluminum alloy powder and an yttrin powder.
- its particle size ranges from 30nm to 50nm.
- the mixture of the two powders is made in a glove box from: 1200mL of the aluminum alloy powder to be refined, 24mL of the yttrium oxide powder (mixture at 2% by volume), and 250mL of Zirconia balls of 3mm diameter, used to homogenize the mixture.
- the volume of the mixing pot is 6.5L.
- the filling rate defined as the ratio of the volume represented by the particles 10, the particles 20 and the zirconia beads to the volume of the mixing pot, is approximately 23%.
- the mixture is passed to 3D dynamic mixer, for example in the Turbula ® during lOh.
- the mixture is then coarsely sieved (1mm) to recover the zirconia beads, then it is used to make a part by 3D printing.
- the SLM conditions making it possible to obtain the densest cubes are as follows: laser power: 190-270W; laser speed: 400-800mm / s, vector space: 100pm; layer thickness (powder bed): 20pm.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1904930A FR3096057B1 (fr) | 2019-05-13 | 2019-05-13 | Procede de fabrication d’une piece en alliage d’aluminium par fabrication additive |
| PCT/EP2020/062126 WO2020229197A1 (fr) | 2019-05-13 | 2020-04-30 | Procédé de fabrication d'une piece en alliage d'aluminium par fabrication additive et piece en alliage d'aluminium obtenue selon ledit procédé |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3941715A1 true EP3941715A1 (fr) | 2022-01-26 |
Family
ID=68072615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20721629.2A Withdrawn EP3941715A1 (fr) | 2019-05-13 | 2020-04-30 | Procédé de fabrication d'une piece en alliage d'aluminium par fabrication additive et piece en alliage d'aluminium obtenue selon ledit procédé |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12246379B2 (fr) |
| EP (1) | EP3941715A1 (fr) |
| JP (1) | JP2022532349A (fr) |
| FR (1) | FR3096057B1 (fr) |
| WO (1) | WO2020229197A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996807A (zh) * | 2021-10-29 | 2022-02-01 | 华中科技大学 | 消除激光选区熔化增材制造2024铝合金微裂纹的方法 |
| CN115491547B (zh) * | 2022-09-28 | 2023-04-18 | 山东创新精密科技有限公司 | 一种多相增强铝合金材料及其制备方法 |
| WO2025126770A1 (fr) * | 2023-12-14 | 2025-06-19 | 三菱マテリアル株式会社 | Poudre pour frittage |
| CN119351833A (zh) * | 2024-12-26 | 2025-01-24 | 北京赛亿科技有限公司 | 一种高流动性耐腐蚀激光熔覆用铝合金材料及其制备和应用 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018049051A1 (fr) * | 2016-09-09 | 2018-03-15 | Arconic Inc. | Produits d'alliage d'aluminum et leurs procédés de fabrication |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11802321B2 (en) * | 2015-03-17 | 2023-10-31 | Elementum 3D, Inc. | Additive manufacturing of metal alloys and metal alloy matrix composites |
| US20170016095A1 (en) * | 2015-07-16 | 2017-01-19 | Hamilton Sundstrand Corporation | Method of manufacturing aluminum alloy articles |
| FR3056230B1 (fr) | 2016-09-19 | 2020-02-28 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Systeme d'electrolyse reversible de l'eau a haute temperature comportant un reservoir d'hydrures couple a l'electrolyseur |
| FR3061495B1 (fr) | 2017-01-02 | 2019-05-31 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Systeme de couplage etanche a haute temperature d'un empilement a oxydes solides de type soec/sofc |
| FR3061496B1 (fr) | 2017-01-05 | 2019-05-31 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Systeme de surchauffe des gaz en entree d'un empilement a oxydes solides de type soec/sofc |
| US20190032175A1 (en) | 2017-02-01 | 2019-01-31 | Hrl Laboratories, Llc | Aluminum alloys with grain refiners, and methods for making and using the same |
| US11260475B2 (en) * | 2017-08-07 | 2022-03-01 | Board Of Regents, The University Of Texas System | Method and system for powder bed fusion additive manufacturing of crack-free aluminum alloys |
| FR3073093B1 (fr) | 2017-10-26 | 2022-02-04 | Commissariat Energie Atomique | Ensemble d'un empilement a oxydes solides de type soec/sofc et d'un systeme de serrage avec systeme de surchauffe des gaz integre |
| FR3075481B1 (fr) | 2017-12-19 | 2020-01-10 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Ensemble d'un empilement a oxydes solides de type soec/sofc, d'un systeme de serrage et d'un systeme de couplage etanche |
| FR3087953B1 (fr) | 2018-10-26 | 2021-07-02 | Commissariat Energie Atomique | Dispositif electrochimique comprenant un ensemble electrochimique dispose dans une enceinte de confinement |
| FR3096056B1 (fr) | 2019-05-13 | 2021-06-04 | Commissariat Energie Atomique | Procede de fabrication d’une piece en alliage d’aluminium par fabrication additive a partir d’un melange de poudres contenant de la zircone yttriee |
-
2019
- 2019-05-13 FR FR1904930A patent/FR3096057B1/fr active Active
-
2020
- 2020-04-30 JP JP2021567866A patent/JP2022532349A/ja active Pending
- 2020-04-30 WO PCT/EP2020/062126 patent/WO2020229197A1/fr not_active Ceased
- 2020-04-30 EP EP20721629.2A patent/EP3941715A1/fr not_active Withdrawn
- 2020-04-30 US US17/595,164 patent/US12246379B2/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018049051A1 (fr) * | 2016-09-09 | 2018-03-15 | Arconic Inc. | Produits d'alliage d'aluminum et leurs procédés de fabrication |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020229197A1 (fr) | 2020-11-19 |
| US20220212258A1 (en) | 2022-07-07 |
| FR3096057A1 (fr) | 2020-11-20 |
| US12246379B2 (en) | 2025-03-11 |
| FR3096057B1 (fr) | 2021-06-11 |
| JP2022532349A (ja) | 2022-07-14 |
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