WO2023162524A1 - Procédé de fabrication de poudre mixte pour fabrication additive - Google Patents

Procédé de fabrication de poudre mixte pour fabrication additive Download PDF

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Publication number
WO2023162524A1
WO2023162524A1 PCT/JP2023/001417 JP2023001417W WO2023162524A1 WO 2023162524 A1 WO2023162524 A1 WO 2023162524A1 JP 2023001417 W JP2023001417 W JP 2023001417W WO 2023162524 A1 WO2023162524 A1 WO 2023162524A1
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Prior art keywords
powder
metal
producing
metal powder
mixed
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PCT/JP2023/001417
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English (en)
Japanese (ja)
Inventor
裕樹 森口
裕樹 池田
将啓 坂田
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山陽特殊製鋼株式会社
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Priority claimed from JP2022185694A external-priority patent/JP7378907B2/ja
Application filed by 山陽特殊製鋼株式会社 filed Critical 山陽特殊製鋼株式会社
Publication of WO2023162524A1 publication Critical patent/WO2023162524A1/fr

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    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/065—Spherical particles
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14—Treatment of metallic powder
    • 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
    • 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
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • 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 a method for manufacturing mixed powder for 3D modeling.
  • 3D modeling is positioned as the third processing method after cutting and composition processing, etc.
  • Technological development is progressing in various technical fields such as automobiles, energy, and biomaterials.
  • molding equipment that uses high-energy heat sources such as lasers and electron beams, molding using metal powder as a raw material became possible.
  • Applications of molding powders are expanding.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2018-178239 discloses that copper powder for 3D printers was produced by a disc atomization method.
  • the present inventors have found that when CuM alloy powder (where M is an abbreviation for metal and is an element with a high melting point) is produced by the atomization method, the higher the concentration of M, the higher the temperature of the molten alloy at 1000 ° C. A problem was discovered in which the M particles (single particles) that were partially separated inside solidified and adhered to the inner wall of the nozzle, and this adhered solidified substance gradually grew to cause nozzle clogging. If the nozzle is clogged, the flow of the molten metal through the nozzle is hindered, making it impossible to atomize the molten metal.
  • the present inventors prepared Cu powder or a CuM alloy powder with a low M concentration by an atomizing method such as a gas atomizing method or a disk atomizing method, and added commercially available M powder (non-spherical solution) to this Cu powder or CuM alloy powder.
  • an atomizing method such as a gas atomizing method or a disk atomizing method
  • M powder non-spherical solution
  • the purpose of the present invention is to produce a mixed powder for 3D modeling in which the M powder is more uniformly distributed.
  • the present inventors have made intensive studies on the above technical problems, and have found that by using spherical M powder instead of the commercially available M powder (non-spherical pulverized powder), the M powder is more uniformly distributed for 3D modeling. It was found that a mixed powder of
  • the method for producing the mixed powder for 3D printing further comprises producing the first metal powder,
  • the step of producing the first metal powder comprises: Obtaining a molten metal made of dissolved Cu and/or a molten metal made of a CuM alloy having a M concentration of 15% by mass or less; a step of producing the first metal powder from the molten metal by an atomizing method;
  • the method for producing the mixed powder for 3D modeling according to aspect 1 or 2 comprising: [Aspect 4]
  • the method for producing the mixed powder for 3D printing further comprises producing the second metal powder,
  • the present invention by mixing the spherical M powder with the spherical Cu powder or CuM alloy powder, it is possible to obtain a mixed powder for 3D modeling in which the M powder is more uniformly distributed.
  • FIG. 4 is a bar graph showing the absorbance (%) of samples A to E.
  • FIG. 4 is a photograph of a 3D-modeled object modeled using sample A as a raw material. It is the area ratio (%) of the residual Cr powder in the cross section.
  • the present invention provides a first metal powder made of spherically shaped Cu powder and/or CuM alloy powder (hereinafter also referred to as "CuM alloy powder etc.” when there is no need to distinguish between them);
  • An object of the present invention is to obtain a mixed powder for 3D modeling in which the M powder is uniformly dispersed by mixing it with a second metal powder composed of the M powder formed into a spherical shape.
  • a CuM alloy is a two-phase separation type multi-phase alloy consisting of M and Cu, which are difficult to dissolve in Cu.
  • M is an abbreviation for metal, and includes high-melting-point metals with a melting point of 1700° C. or higher.
  • M may be, for example, one or more metal elements selected from the group consisting of V, Cr, Nb, W, Zr, Mo and Ta.
  • 3D modeling is also called additive manufacturing, and the lamination method using EB (Electron Beam) and laser is well known.
  • EB Electro Beam
  • a sintered portion integrated with the underlying sintered portion is formed.
  • a three-dimensional shape is formed layer by layer from the powder. According to these methods, it is possible to form a complicated shape that is difficult with conventional processing methods, and to form a desired three-dimensional model from shape data such as CAD.
  • the first metal powder can be produced by an atomizing method.
  • a gas atomization method or a disc atomization method can be used as the atomization method.
  • the gas atomization method is a method in which molten metal melted in a vacuum is dropped vertically downward from a nozzle, and an inert gas (argon gas, nitrogen gas, etc.) is blown from the surroundings to divide it into small droplets.
  • the fragmented molten metal solidifies while being spheroidized by surface tension while falling in the atomization chamber to obtain spherical powder.
  • the disk atomization method is a method in which molten metal is continuously poured from a nozzle onto a disk that rotates at high speed, and the molten film formed on the upper surface of the disk is scattered in the form of droplets by high-speed rotation to produce powder.
  • the molten metal flows down to the center of the high-speed rotation, spreads over the disk surface, and is pulled toward the outer periphery by centrifugal force to form a thin molten film.
  • the molten film loses its support at the peripheral edge of the disk and forms droplets, and the droplets are separated and scattered by centrifugal force, resulting in atomization.
  • the atomized molten metal is spheroidized by the surface tension of the molten metal itself and cooled by atmospheric gas or radiation cooling to obtain spherical powder.
  • each powder may be produced by a gas atomization method and mixed.
  • the spherical powder is defined by the sphericity, it is preferably 0.80 or more.
  • the sphericity is measured for 1000 powder particles with an equivalent circle diameter of 10 ⁇ m or more in the secondary projection image, and the arithmetic average value of these is defined as the sphericity of the first metal powder. can do. It should be noted that the closer the sphericity is to 1, the closer to a perfect circle.
  • the raw material is a molten metal made of Cu and/or a molten metal made of Cu and M whose M concentration is adjusted to 15% by mass or less.
  • molten metal made of Cu is used as a raw material
  • spherically shaped Cu powder is produced by an atomizing method.
  • a molten metal composed of Cu and M is used as the raw material
  • spherically shaped CuM alloy powder is produced by the atomization method.
  • a mixed powder obtained by mixing these Cu powder and CuM alloy powder may be used as the first metal powder.
  • the target M density required for the 3D modeled object can be determined in advance.
  • Cu powder containing no M
  • the blending conditions are determined so that the target M concentration is achieved only with the second metal powder.
  • the difference between the target M concentration and the M concentration of the first metal powder is used to determine the second metal Powder blending conditions can be determined.
  • the target M concentration cannot be uniquely determined, but is preferably 1% by mass or more, more preferably 15% by mass or more and 75% by mass or less. More preferably, it is 25 mass % or more and 50 mass % or less.
  • Increasing the M concentration also improves the laser extinction coefficient. If the laser absorbance is insufficient, the object can be shaped by, for example, increasing the laser output.
  • Raw materials may contain unavoidable impurities (the same applies hereinafter).
  • Unavoidable impurities include metal elements that are not intentionally included in the raw material but are contained in trace amounts, and contamination from the atmosphere gas and interfaces of refractory bricks during melting and refining to obtain alloys.
  • Non-metallic elements that Among these, particularly representative metal elements include Si, Fe, Ni, and the like. C, O, N and the like are typical elements that form non-metallic inclusions.
  • the upper limit of the content of elements that generate non-metallic inclusions is preferably 0.1% by mass or less in total in the 3D modeled body.
  • the second metal powder is spherical particles manufactured by performing a spheroidizing treatment using non-spherical irregular shaped M powder as a raw material (hereinafter also referred to as raw M powder).
  • the sphericity of the second metal powder is preferably 0.80 or more. Since the technical significance of the sphericity has been described above, the explanation is omitted.
  • a mechanical pulverization method, a spray method, a reduction method, an electrolysis method, or the like can be used to produce the raw material M powder.
  • the raw M powder can be obtained by pulverizing the M lumps using a jaw crusher, a hammer mill, a stamp mill, or the like.
  • the raw material M powder can be obtained by pulverizing the M lumps using a ball mill, vibration mill, or the like.
  • a high-frequency induction thermal plasma method for example, can be used for the spheroidizing treatment.
  • a high-frequency magnetic field is excited by a high-frequency induction coil, plasma gas is supplied into this high-frequency magnetic field, and a high-frequency plasma flame is inductively generated, and the raw material M powder is fed into this high-frequency plasma flame. It is a technique for producing spherical particles by supplying.
  • the spheroidizing method is not limited to the high-frequency induction thermal plasma method.
  • a rotating electrode process can be used.
  • a rotating electrode is melted by high-temperature plasma, and droplets blown off from the electrode surface by centrifugal force are sphered by the aerodynamic pulling force of a gas jet ejected from a gas nozzle placed around the electrode. is.
  • the gas atomization method is not suitable for spheroidizing a high-melting-point metal such as M.
  • This mixing step preferably includes a mixing ratio determination step, a metering step and a narrowly defined mixing step.
  • the mixing ratio of the first metal powder and the second metal powder is determined so that the M concentration of the mixed powder for 3D modeling becomes the target M concentration.
  • the first metal powder and the second metal powder are each weighed so as to achieve the mixing ratio determined in the mixing ratio determining step.
  • An electronic balance for example, can be used as the weighing instrument.
  • the first metal powder and the second metal powder weighed in the weighing step are mixed.
  • Mixing methods include a manual mixing method in which an operator shakes the mixing container containing the mixed powder, a rotary mixing method in which the mixing container containing the mixed powder is mechanically rotated, and a stirrer equipped with a stirring blade to stir the mixed powder.
  • a known method such as a stirring and mixing method can be used.
  • the reason why the M powder is uniformly dispersed is that the M powder is formed into a spherical shape, which increases the fluidity.
  • Whether or not the M powder exhibits the above dispersibility can be evaluated, for example, by measuring the fluidity of the mixed powder in which the M powder is mixed.
  • the fluidity of the mixed powder can be evaluated, for example, by feeding 50 g of the mixed powder into a funnel and measuring the passage time through the orifice in accordance with the standard defined in JIS Z 2502.
  • the fluidity of the mixed powder for 3D modeling changes depending on conditions other than the shape of the powder, so it cannot be defined unambiguously, but it is preferably 30 (s/50 g) or less, more preferably 12 .2 (s/50g) or less. Powders with low fluidity are more suitable for 3D modeling.
  • the dispersibility of the M powder may be evaluated based on color information obtained from the image data of the mixed powder. Specifically, when M is Cr, the entire mixed powder is observed, and if the reddish copper color is dominant and no blue powder group representing Cr is observed, the Cr powder is uniformly mixed. It can be evaluated that On the other hand, when a blue powder group in which Cr is unevenly distributed is observed in the mixed powder, it can be evaluated that the Cr powder is non-uniformly mixed. Of course, image analysis by software may be used to determine whether or not the M powder is uniformly mixed.
  • the fluidity of the M powder is enhanced by molding it into a spherical shape, the above-mentioned uniform distribution state is generally maintained during the transportation process from the mixing container to the modeling stage. Therefore, 3D modeling can be performed using the mixed powder for 3D modeling in which the M powder is uniformly dispersed.
  • FIG. 1 is an SEM (Scanning Electron Microscope) image of pulverized powder. As shown in FIG. 1, non-spherical Cr particles with an irregular shape were confirmed.
  • a second metal powder obtained by spheroidizing pulverized powder of pure Cr was mixed with spherical CuCr atomized powder to obtain a mixed powder (hereinafter also referred to as an example powder).
  • the composition of the CuCr atomized powder was the same as that of the comparative example powder.
  • the amount of the second metal powder added was adjusted so that the mixed powder had a Cr concentration of 25% by mass. Since the preparation method is the same as that of the comparative example powder, the explanation is omitted.
  • the spheroidizing treatment for obtaining the second metal powder was performed using a plasma spheroidizing apparatus (model number: N-Plasma Melting) manufactured by Niimi Sangyo Co., Ltd.
  • FIG. 2 is an SEM image of the second metal powder. As shown in FIG. 2, spherical Cr particles were confirmed.
  • 3 and 4 are photographs of comparative example powder and example powder, respectively.
  • the powder of the example was predominantly copper-red, and no blue powder group was observed.
  • a blue powder group region where pure Cr powder is unevenly distributed
  • the fluidity of each of the comparative example powder and the example powder was measured, and the results shown in Table 1 were obtained.
  • Flow rate was measured according to "JIS Z 2502" described in the embodiment.
  • the sphericity of each of the comparative example powder and the example powder was measured, and the results shown in Table 2 were obtained.
  • the sphericity was measured for 1000 powder particles having an equivalent circle diameter of 10 ⁇ m or more in the secondary projection image, and the arithmetic average value of these was taken as the sphericity. .
  • the Cr powder was uniformly dispersed in the Example powder, unlike the Comparative Example powder. Also, from Table 1, it was found that the powders of Examples had better fluidity than the powders of Comparative Examples. Also, from Table 2, it was found that the example powders had a sphericity superior to that of the comparative example powders (close to 1.00). In addition, in the example powder, the sphericity of each of the first metal powder and the second metal powder was also 0.80 or more. In the comparative example powder, the sphericity of each of the first metal powder and the second metal powder was also less than 0.80.
  • Samples AE shown below were prepared.
  • Sample A Cu25Cr mixed powder obtained by mixing spherical Cr powder with spherical Cu15Cr alloy powder produced by gas atomization (volume ratio of Cr in sample A: 13.7%)
  • Sample B A Cu25Cr mixed powder obtained by mixing a spherical Cu15Cr alloy powder produced by a gas atomization method with crushed Cr powder (irregular shape)
  • Sample C A spherical Cu15Cr alloy powder produced by a gas atomization method
  • Sample D Produced by a gas atomization method Spherical Cu powder
  • Sample E Cu25Cr mixed powder obtained by mixing spherical Cr powder with spherical pure Cu powder produced by the gas atomization method (Cr volume ratio in Sample E: 29.4%)
  • the Cr powders (second metal powders) of samples A and E were produced by subjecting pulverized powder of pure Cr to a spheroidizing treatment.
  • a plasma spheroidizing device manufactured by Niimi Sangyo (model number: N-Plasma Melting) was used.
  • the absorbance (%) of each of samples A to E was measured.
  • the absorbance (%) was measured with an ultraviolet-visible-near-infrared spectrophotometer V-770DS manufactured by JASCO Corporation.
  • Laser light absorptance at 1064 nm which is the wavelength of a fiber laser widely used in laser metal additive manufacturing machines, was compared.
  • Fig. 5 shows the absorbance of samples A to E.
  • sample A and sample E mixed powder in which spherical Cr powder is mixed
  • sample B also has an absorptivity of 50% or more, but from FIGS. Absorption coefficient varies depending on the irradiation position of . Therefore, it is not suitable for a mixed powder for 3D modeling because it also causes variations in modeling properties.
  • the 3D modeled body was cut and the area ratio of the residual Cr powder on the cut surface was determined.
  • the results are shown in FIG.
  • the area ratio of residual Cr powder in the cut surface was 0.5% or less, which was much smaller than the volume ratio of Cr in the mixed powder (13.7%). As a result, it was confirmed that the high melting point Cr powder was melted.
  • sample F is a mixed powder obtained by mixing a first metal powder consisting of V: 0.2% by mass and the balance being Cu, and a second mixed powder consisting of V, wherein the total V content is 17 It is a mixed powder of % by mass.
  • Sample H is a mixed powder obtained by mixing a first metal powder (pure Cu powder) made only of Cu and a second metal powder made of Ta, and the total Ta content is 5% by mass. It is a mixed powder.
  • spherical second metal powder was added to the first metal powder made of atomized powder.
  • spheroidized powder obtained by spheroidizing pulverized powder using a plasma spheroidizing device (model number: N-Plasma Melting) manufactured by Niimi Sangyo Co., Ltd. was used.
  • the second metal powder which is pulverized powder, was added to the first metal powder, which was atomized powder.
  • Fluidity, sphericity, and uneven distribution of M powder in appearance were measured and evaluated in the same manner as in the first experimental example.
  • the mixed powder was sampled five times, the absorbance of each sample was measured, and the difference between the maximum value and the minimum value was defined as the absorbance variation.
  • the measurement of the absorbance was the same as in the second experimental example.
  • a block of 10 mm square was obtained by performing 3D modeling using each mixed powder as a raw material. The energy density during 3D modeling was 290 J/mm 3 . The 3D model was cut, and the area ratio of the remaining M on the cut surface was determined.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Automation & Control Theory (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une poudre mixte pour la fabrication additive dans laquelle une poudre mixte est distribuée de manière plus uniforme. Le procédé comprend une étape de mélange pour le mélange d'une première poudre métallique comprenant une poudre de Cu sphérique ou une poudre d'alliage CuM (M étant un ou plusieurs élément(s) métallique(s)) et une seconde poudre métallique comprenant une poudre M sous une forme sphérique.
PCT/JP2023/001417 2022-02-28 2023-01-18 Procédé de fabrication de poudre mixte pour fabrication additive WO2023162524A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2022030289 2022-02-28
JP2022-030289 2022-02-28
JP2022-185694 2022-11-21
JP2022185694A JP7378907B2 (ja) 2022-02-28 2022-11-21 ３ｄ造形用混合粉末の製造方法

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018154850A (ja) * 2015-07-06 2018-10-04 株式会社日立製作所 粉体材料、積層造形体及び積層造形体の製造方法
WO2019225589A1 (fr) * 2018-05-23 2019-11-28 古河電気工業株式会社 Poudre à base de cuivre, poudre à base de cuivre revêtue en surface et poudre mélangée de celles-ci, article stratifié et son procédé de production, ainsi que divers composants métalliques
CN111360254A (zh) * 2020-03-23 2020-07-03 陕西斯瑞新材料股份有限公司 一种采用球形钨粉和雾化铜粉制备CuW90材料的方法
JP2021031691A (ja) * 2019-08-19 2021-03-01 山陽特殊製鋼株式会社 Ｃｕ合金粉末
WO2021039912A1 (fr) * 2019-08-27 2021-03-04 日立金属株式会社 Poudre d'alliage super-dur à base de wc, élément en alliage super-dur à base de wc et procédé de production d'un élément en alliage super-dur à base de wc
JP2021075753A (ja) * 2019-11-08 2021-05-20 セイコーエプソン株式会社 三次元造形物製造用粉末、三次元造形物製造用組成物および三次元造形物の製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018154850A (ja) * 2015-07-06 2018-10-04 株式会社日立製作所 粉体材料、積層造形体及び積層造形体の製造方法
WO2019225589A1 (fr) * 2018-05-23 2019-11-28 古河電気工業株式会社 Poudre à base de cuivre, poudre à base de cuivre revêtue en surface et poudre mélangée de celles-ci, article stratifié et son procédé de production, ainsi que divers composants métalliques
JP2021031691A (ja) * 2019-08-19 2021-03-01 山陽特殊製鋼株式会社 Ｃｕ合金粉末
WO2021039912A1 (fr) * 2019-08-27 2021-03-04 日立金属株式会社 Poudre d'alliage super-dur à base de wc, élément en alliage super-dur à base de wc et procédé de production d'un élément en alliage super-dur à base de wc
JP2021075753A (ja) * 2019-11-08 2021-05-20 セイコーエプソン株式会社 三次元造形物製造用粉末、三次元造形物製造用組成物および三次元造形物の製造方法
CN111360254A (zh) * 2020-03-23 2020-07-03 陕西斯瑞新材料股份有限公司 一种采用球形钨粉和雾化铜粉制备CuW90材料的方法

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