POWDER MATERIAL, METHOD FOR PRODUCING THREE-DIMENSIONAL MOLDED ARTICLE, AND THREE-DIMENSIONAL MOLDING DEVICE
First Claim
1. A powder material used for fabrication of a three-dimensional object by selectively irradiating a thin layer of a powder material containing metal particles with a laser beam to form an object layer through sintering or fusing of the metal particles, and laminating the object layer, the powder material comprising:
- porous metal particles each formed from metal nanoparticles bonded each other with a binder, whereinthe powder material has a BET specific surface area of 5.0×
106 (m2/m3) or more and 1.1×
108 (m2/m3) or less.
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Accused Products
Abstract
The objective of the present invention is to provide a powder material for a powder bed fusion method, said powder material making it possible to easily sinter or fuse metal particles included in the powder material using a low-energy laser regardless of the material constituting the powder material. The powder material is used in the production of a three-dimensional molded article by selectively irradiating a thin layer of the powder material, which includes metal particles, with a laser light, forming molded article layers formed by sintering or fusing the metal particles, and laminating the molded article layers. The powder material includes porous metal particles formed by binding metal nanoparticles with a binder, and the BET specific surface area of the powder material is 5.0×106−1.1×108 (m2/m3), inclusive.
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Citations
6 Claims
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1. A powder material used for fabrication of a three-dimensional object by selectively irradiating a thin layer of a powder material containing metal particles with a laser beam to form an object layer through sintering or fusing of the metal particles, and laminating the object layer, the powder material comprising:
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porous metal particles each formed from metal nanoparticles bonded each other with a binder, wherein the powder material has a BET specific surface area of 5.0×
106 (m2/m3) or more and 1.1×
108 (m2/m3) or less. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification