US 12,447,533 B2
Powder material for use in additive layer manufacturing, additive layer manufacturing method using same, and molded article
Junya Yamada, Kiyosu (JP); Hiroyuki Ibe, Kiyosu (JP); Nobuaki Kato, Kiyosu (JP); Yuta Kato, Kiyosu (JP); and Yoshikazu Sugiyama, Kiyosu (JP)
Assigned to FUJIMI INCORPORATED, Kiyosu (JP)
Appl. No. 17/292,795
Filed by FUJIMI INCORPORATED, Kiyosu (JP)
PCT Filed Oct. 23, 2019, PCT No. PCT/JP2019/041567
§ 371(c)(1), (2) Date May 11, 2021,
PCT Pub. No. WO2020/100542, PCT Pub. Date May 22, 2020.
Claims priority of application No. 2018-212471 (JP), filed on Nov. 12, 2018.
Prior Publication US 2021/0394263 A1, Dec. 23, 2021
Int. Cl. B22F 1/05 (2022.01); B22F 1/052 (2022.01); B22F 1/12 (2022.01); B22F 10/28 (2021.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); B22F 1/10 (2022.01); B22F 1/148 (2022.01)
CPC B22F 10/28 (2021.01) [B22F 1/05 (2022.01); B22F 1/052 (2022.01); B22F 1/12 (2022.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); B22F 1/10 (2022.01); B22F 1/148 (2022.01); B22F 2304/10 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A powder material for use in additive layer manufacturing comprising:
tungsten carbide (WC); and
cobalt,
wherein:
the powder material comprises a main powder and an additional powder;
a porosity of the main powder is larger than a porosity of the additional powder;
the porosity of the main powder is 10% or more; and
a tapped filling rate defined by (tapped density/theoretical density)×100% is 30% or more and less than 40%.