US20170368605A1 - Three-dimensional laminating and shaping apparatus, control method of three-dimensional laminating and shaping apparatus, and control program of three-dimensional laminating and shaping apparatus - Google Patents

Three-dimensional laminating and shaping apparatus, control method of three-dimensional laminating and shaping apparatus, and control program of three-dimensional laminating and shaping apparatus Download PDF

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Publication number
US20170368605A1
US20170368605A1 US15/116,566 US201515116566A US2017368605A1 US 20170368605 A1 US20170368605 A1 US 20170368605A1 US 201515116566 A US201515116566 A US 201515116566A US 2017368605 A1 US2017368605 A1 US 2017368605A1
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Prior art keywords
laminating
materials
dimensional
shaping
shaped object
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Abandoned
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US15/116,566
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English (en)
Inventor
Yasushi Fukase
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Technology Research Association for Future Additive Manufacturing (TRAFAM)
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Technology Research Association for Future Additive Manufacturing (TRAFAM)
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Assigned to TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING reassignment TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FUKASE, YASUSHI
Publication of US20170368605A1 publication Critical patent/US20170368605A1/en
Abandoned legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—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
    • B29C64/10—Processes of additive manufacturing
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser 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
    • B22F10/20—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
    • B22F10/36—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
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/50—Means for feeding of material, e.g. heads
    • B22F12/57—Metering 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—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
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • 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
    • B33Y10/00—Processes of additive manufacturing
    • 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
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • 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
    • B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/50—Means for feeding of material, e.g. heads
    • B22F12/53—Nozzles
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/16—Both compacting and sintering in successive or repeated steps
    • 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 three-dimensional laminating and shaping apparatus, a control method of the three-dimensional laminating and shaping apparatus, and a control program of the three-dimensional laminating and shaping apparatus.
  • patent literature 1 discloses a technique of supplying a plurality of kinds of materials while changing the supply amounts of the materials.
  • Patent literature 1 Japanese Patent Laid-Open No. 2015-85547
  • the present invention enables to provide a technique of solving the above-described problem.
  • One aspect of the present invention provides a three-dimensional laminating and shaping apparatus for shaping a three-dimensional laminated and shaped object having a graded composition by laminating a plurality of kinds of materials, comprising:
  • Another aspect of the present invention provides a control method of a three-dimensional laminating and shaping apparatus for shaping a three-dimensional laminated and shaped object having a graded composition by laminating a plurality of kinds of materials, the apparatus including
  • Still other aspect of the present invention provides a control program of a three-dimensional laminating and shaping apparatus for shaping a three-dimensional laminated and shaped object having a graded composition by laminating a plurality of kinds of materials, the apparatus including
  • FIG. 1 is a view for schematically explaining the arrangement of a three-dimensional laminating and shaping apparatus according to the first embodiment of the present invention
  • FIG. 2A is a schematic view for explaining an overview of shaping of a three-dimensional laminated and shaped object by the three-dimensional laminating and shaping apparatus according to the first embodiment of the present invention
  • FIG. 2B is a schematic view for explaining another overview of shaping of the three-dimensional laminated and shaped object by the three-dimensional laminating and shaping apparatus according to the first embodiment of the present invention
  • FIG. 3 is a view for explaining a method of adjusting the mixing ratio of materials by the three-dimensional laminating and shaping apparatus according to the first embodiment of the present invention
  • FIG. 4 is a view for explaining an overview of shaping of a three-dimensional laminated and shaped object by a three-dimensional laminating and shaping apparatus according to a technical premise of the three-dimensional laminating and shaping apparatus according to the first embodiment of the present invention
  • FIG. 5 is a view for explaining an overview of a three-dimensional laminated and shaped object shaped by a three-dimensional laminating and shaping apparatus according to the second embodiment of the present invention
  • FIG. 6A is a view obtained by dividing a process of shaping a three-dimensional laminated and shaped object shaped by the three-dimensional laminating and shaping apparatus according to the second embodiment of the present invention.
  • FIG. 6B is a view for explaining an overview of the process of shaping the three-dimensional laminated and shaped object shaped by the three-dimensional laminating and shaping apparatus according to the second embodiment of the present invention.
  • a three-dimensional laminating and shaping apparatus 100 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3 .
  • FIG. 4 is a view for explaining an overview of shaping of a three-dimensional laminated and shaped object by a three-dimensional laminating and shaping apparatus according to a technical premise of the three-dimensional laminating and shaping apparatus 100 according to this embodiment.
  • 410 shows a state of ideal shaping of a three-dimensional laminated and shaped object having a graded composition.
  • 420 shows a state of actual shaping of a three-dimensional laminated and shaped object having a graded composition.
  • a processing head, a nozzle, and the like can immediately respond to a control signal from a controller (not shown) to accurately start supply of materials from a desired position.
  • a controller not shown
  • the processing head (nozzle) is made to execute a scan while supplying (spraying) the materials from the nozzle
  • the material supply position is shifted by 250 mm by assuming, for example, that the scanning speed of the nozzle is 50 mm/sec and it takes 5 sec to supply the materials to the distal end of the nozzle. That is, it takes time for the materials to reach a processing surface. During this period, the processing head (nozzle) moves, thereby shifting the material supply position.
  • the three-dimensional laminating and shaping apparatus generates a time lag from when the nozzle receives the control signal until material supply actually starts, and thus it is difficult to match the start position (start coordinates) of the material supply and material supply amounts (material mixing ratio). As a result, it is impossible to accurately shape a three-dimensional laminated and shaped object having a graded composition.
  • FIG. 1 is a view for schematically explaining the arrangement of the three-dimensional laminating and shaping apparatus 100 according to this embodiment. Note that in FIG. 1 , to avoid the view from becoming complicated, members other than those shown in FIG. 1 are not illustrated, as needed.
  • the three-dimensional laminating and shaping apparatus 100 is an apparatus for shaping a three-dimensional laminated and shaped object 120 on a shaping table 130 by melting and solidifying metal powders or the like as materials of a three-dimensional laminated and shaped object by irradiating the metal powders with a laser beam, and laminating the metal powders.
  • the three-dimensional laminating and shaping apparatus 100 includes a light source 101 , a lens barrel 102 , a nozzle 103 , a controller 104 , and a material storage 105 .
  • the light source 101 generates a laser beam.
  • the lens barrel 102 adjusts the path of the generated laser beam, thereby guiding the laser beam to the shaping table 130 .
  • the nozzle 103 sprays a carrier gas 140 from the distal end of the nozzle 103 to supply the materials of the three-dimensional laminated and shaped object 120 onto the shaping table 130 .
  • the carrier gas 140 is an inert gas such as argon gas, nitrogen gas, or helium gas, and is a gas for conveying the metal powders or the like as the materials of the three-dimensional laminated and shaped object 120 onto the shaping table 130 .
  • the material storage 105 stores the materials of the three-dimensional laminated and shaped object 120 , and supplies the materials to the nozzle 103 via a material delivery tube 151 by force feed or the like.
  • the controller 104 is connected to the light source 101 , lens barrel 102 , nozzle 103 , and material storage 105 .
  • the controller 104 controls the light source 101 to adjust the output and the like of the laser beam or the like.
  • the controller 104 controls the lens barrel 102 to adjust the optical axis, focusing state, and the like of the laser beam or the like.
  • the controller 104 controls the nozzle 103 and material storage 105 to adjust the scanning speed of the nozzle 103 , the spray amount of the carrier gas 140 from the nozzle 103 , and the like, thereby adjusting the supply amounts of the materials.
  • FIG. 2A is a schematic view for explaining an overview of shaping the three-dimensional laminated and shaped object 120 by the three-dimensional laminating and shaping apparatus 100 according to this embodiment.
  • 210 is a schematic plan view showing the three-dimensional laminated and shaped object 120
  • 220 is a schematic side view showing the three-dimensional laminated and shaped object 120 .
  • FIG. 2B is a schematic view for explaining another overview of shaping of the three-dimensional laminated and shaped object 120 by the three-dimensional laminating and shaping apparatus 100 according to this embodiment.
  • 230 is a schematic plan view showing the three-dimensional laminated and shaped object 120
  • 240 is a schematic side view showing the three-dimensional laminated and shaped object 120 .
  • the three-dimensional laminated and shaped object 120 is a shaped object shaped by laminating two kinds of materials. As shown in 210 of FIG. 2A , the three-dimensional laminated and shaped object 120 has a graded composition in which the composition of the materials sequentially changes from left. As shown in 210 of FIG. 2A , a scanning area 201 of the three-dimensional laminated and shaped object 120 is divided into five scanning areas 211 , 212 , 213 , 214 , and 215 which are arranged from left in the order named.
  • the scanning area 201 indicates, for example, an area which can be scanned by a material supplier such as the nozzle 103 or a recoater.
  • the three-dimensional laminated and shaped object 120 has a graded composition in which the mixing densities of materials A and B change from left in one layer without changing the supply amounts or supply ratio of the materials during shaping (scan).
  • Laminating of the three-dimensional laminated and shaped object 120 is performed in the following procedure, as shown in 220 of FIG. 2A .
  • material A is supplied from the scanning area 211 to the scanning area 214
  • material B is supplied to the scanning area 215 .
  • material A is supplied from the scanning area 211 to the scanning area 213
  • material B is supplied from the scanning area 214 to the scanning area 215 .
  • material A is supplied from the scanning area 211 to the scanning area 212
  • material B is supplied from the scanning area 213 to the scanning area 215 .
  • material A is supplied to the scanning area 211
  • material B is supplied from the scanning area 212 to the scanning area 215 .
  • the density of material A is 100%.
  • the density of material A is 75% and the density of material B is 25%.
  • the density of material A is 50% and the density of material B is 50%.
  • the density of material A is 25% and the density of material B is 75%.
  • the density of material B is 100%.
  • the shaping method according to this embodiment adjusts the composition by the material supply count (the scan count of the nozzle 103 ) without changing the supply amounts of the materials (materials contained in the carrier gas 140 ) during the movement of the nozzle 103 .
  • the shaping method it is possible to form a graded composition (gradation) in which the mixing densities of materials A and B change such that the density of material A gradually decreases from 100% in the scanning direction and the density of material B finally becomes 100%.
  • the shaping speed decreases but the position accuracy of formation of the graded composition significantly improves.
  • the division number of one layer is not limited to four, and may be an arbitrary number.
  • the output of the laser or the like with which the materials are irradiated is changed in accordance with the scan count necessary for shaping one layer. That is, as the scan count necessary for shaping one layer increases, the amounts of the materials supplied by each scan decrease, and thus the output of the laser is accordingly weakened. To the contrary, as the scan count necessary for shaping one layer decreases, the supply amounts of the materials increase, and thus the output of the laser is strengthened.
  • the laminating order may be changed with respect to the moving direction (Y direction). That is, a graded composition may be formed in the moving direction.
  • a graded composition may be formed in the moving direction.
  • the above description assumes a method of forming a molten pool by irradiation with the laser beam or the like and ejecting the materials to the molten pool, like the LMD (Laser Metal Deposition) method.
  • the present invention is applicable to a method of spreading a material on a shaping surface first, and irradiating the spread material with a laser beam or the like, like a powder bed method.
  • An example in which a graded composition is formed in one layer has been described above.
  • such laminating method is applicable to the case of a plurality of layers.
  • FIG. 3 is a view for explaining a method of adjusting the mixing ratio of the materials by the three-dimensional laminating and shaping apparatus 100 according to this embodiment.
  • material A is supplied at 1 g/min in the first to fourth scans
  • material B is supplied at 1 g/min in the fifth scan.
  • a shaped object with the mixing ratio of materials A and B of 80%:20% can be shaped as the three-dimensional laminated and shaped object 120 . It is possible to change the mixing ratio of materials A and B by adjusting the scan counts of the materials, thereby shaping the three-dimensional laminated and shaped object 120 having the graded composition.
  • the supply amounts or supply densities of the materials are changed by the scan count of the nozzle without changing the supply amounts of the materials during the operation of the nozzle, it is possible to accurately shape the three-dimensional laminated and shaped object having the graded composition.
  • FIG. 5 is a plan view for explaining an overview of a three-dimensional laminated and shaped object shaped by the three-dimensional laminating and shaping apparatus according to this embodiment.
  • FIG. 4 an example in which one layer is shaped by four scans will be described. Note that each number in parentheses in FIG. 4 represents a scan count.
  • a three-dimensional laminated and shaped object 301 is a shaped object in which the density of material A increases (the density of material B decreases) from the central portion to the peripheral portion.
  • material A:material B is 25%:75%.
  • material A:material B is 50%:50%.
  • material A:material B is 75%:25%.
  • material A:material B is 100%:0%.
  • FIG. 6A is a view obtained by dividing a process of shaping a three-dimensional laminated and shaped object shaped by the three-dimensional laminating and shaping apparatus according to this embodiment.
  • the three-dimensional laminating and shaping apparatus shapes each layer by causing a nozzle 103 to scan 1/4th layer ⁇ (2-1)/4th layer ⁇ (2-2)/4th layer ⁇ (3-1)/4th layer ⁇ (3-2)/4th layer ⁇ (4-1)/4th layer ⁇ (4-2)/4th layer in the order named.
  • FIG. 6B is a view for explaining an overview of the process of shaping the three-dimensional laminated and shaped object shaped by the three-dimensional laminating and shaping apparatus according to this embodiment, and shows the mixing ratio of materials A and B after shaping each layer obtained by dividing one layer into four.
  • material A:material B is 100%:0% after shaping the first layer, and is 50%:50% after shaping the second layer.
  • material A:material B is 33%:66% in the scanning area 311 overlapping the second layer, and is 66%:33% in the scanning area 312 scanned in the (3-1)/4th layer.
  • material A:material B is 50%:50% in the scanning area 312 , and is 75%:25% in the scanning area 313 scanned in the (4-2)/4th layer.
  • the present invention is applicable to a system including a plurality of devices or a single apparatus.
  • the present invention is also applicable even when an information processing program for implementing the functions of the embodiments is supplied to the system or apparatus directly or from a remote site.
  • the present invention also incorporates the program installed in a computer to implement the functions of the present invention by the computer, a medium storing the program, and a WWW (World Wide Web) server that causes a user to download the program.
  • the present invention incorporates at least a non-transitory computer readable medium storing a program that causes a computer to execute processing steps included in the above-described embodiments.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Automation & Control Theory (AREA)
  • Plasma & Fusion (AREA)
  • Composite Materials (AREA)
  • Powder Metallurgy (AREA)
US15/116,566 2015-12-25 2015-12-25 Three-dimensional laminating and shaping apparatus, control method of three-dimensional laminating and shaping apparatus, and control program of three-dimensional laminating and shaping apparatus Abandoned US20170368605A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/086431 WO2017110000A1 (fr) 2015-12-25 2015-12-25 Dispositif de moulage de stratifié tridimensionnel, procédé de commande de dispositif de moulage de stratifié tridimensionnel, et programme de commande de dispositif de moulage de stratifié tridimensionnel

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US (1) US20170368605A1 (fr)
EP (1) EP3210700A4 (fr)
JP (1) JP6170239B1 (fr)
WO (1) WO2017110000A1 (fr)

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DE102017213087A1 (de) * 2017-07-28 2019-01-31 Siemens Aktiengesellschaft Anlage zum pulverbettbasierten additiven Herstellen eines Werkstücks mit mehreren Dosiervorrichtungen für verschiedene Pulverarten und Verfahren zu deren Betreiben
KR102188554B1 (ko) * 2019-01-22 2020-12-09 주식회사 디이엔티 금속 3d 프린터의 레이저 헤드 광축 거리조절장치

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US20140314613A1 (en) * 2011-08-05 2014-10-23 Loughborough University Methods and Apparatus for Selectively Combining Particulate Material

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JPH10226803A (ja) * 1997-01-10 1998-08-25 Jiibetsuku Internatl Corp:Kk 三次元構造体
EP2839905A1 (fr) * 2013-08-22 2015-02-25 Astrium GmbH Fabrication de composants à partir de pièces fabriquées à partir de différents matériaux, notamment de composants de transport spatial tels que des chambres de combustion pour propulseurs
JP6017400B2 (ja) 2013-10-28 2016-11-02 株式会社東芝 積層造形装置及び積層造形物の製造方法
US20160318104A1 (en) * 2013-12-20 2016-11-03 United Technologies Corporation Gradient sintered metal preform
JP5931946B2 (ja) * 2014-03-18 2016-06-08 株式会社東芝 光照射装置および積層造形装置
JP6258739B2 (ja) * 2014-03-26 2018-01-10 日本電子株式会社 ３次元積層造形装置及び３次元積層造形方法

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US20140314613A1 (en) * 2011-08-05 2014-10-23 Loughborough University Methods and Apparatus for Selectively Combining Particulate Material

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JPWO2017110000A1 (ja) 2017-12-21
EP3210700A1 (fr) 2017-08-30
WO2017110000A1 (fr) 2017-06-29
EP3210700A4 (fr) 2018-04-18

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