公开(公告)号：US11684979B2

公开(公告)日：2023-06-27

申请号：US16757613

申请日：2018-10-30

申请人： IHI CORPORATION

发明人： Masashi Mouri ,  Masato Yamada ,  Yuki Kozue

IPC分类号： B22F12/13 ,  B33Y30/00 ,  B33Y50/02 ,  B22F12/44 ,  B22F12/00 ,  B33Y10/00 ,  B22F10/28 ,  B22F10/362 ,  B33Y40/10 ,  B22F12/90 ,  B22F12/30 ,  B22F12/49 ,  B22F10/32

CPC分类号： B22F12/13 ,  B22F10/28 ,  B22F10/362 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/10 ,  B33Y50/02 ,  B22F10/32 ,  B22F12/222 ,  B22F12/30 ,  B22F12/44 ,  B22F12/49

摘要： An additive manufacturing device is an additive manufacturing device manufacturing an additively manufactured article by melting or sintering layered powder by partially applying energy to the powder. The additive manufacturing device includes a powder holding unit holding the layered powder, a heating unit preheating the powder held by the powder holding unit, a reflection unit where a reflective film including a reflective surface is disposed, the reflective surface reflecting radiant heat radiated from an object including at least one of the powder and the additively manufactured article to the powder holding unit side, and a reflective surface update unit disposing a new reflective surface in the reflection unit by moving the reflective film.

公开(公告)号：US12005636B2

公开(公告)日：2024-06-11

申请号：US16759526

申请日：2018-10-30

申请人： IHI Corporation

发明人： Masato Yamada ,  Masashi Mouri ,  Yuki Kozue

IPC分类号： B29C64/153 ,  B22F10/28 ,  B22F10/37 ,  B22F10/38 ,  B22F10/85 ,  B22F12/13 ,  B22F12/17 ,  B22F12/40 ,  B22F12/90 ,  B23K15/00 ,  B33Y10/00 ,  B33Y30/00

CPC分类号： B29C64/153 ,  B22F10/28 ,  B22F10/37 ,  B22F10/38 ,  B22F10/85 ,  B22F12/13 ,  B22F12/17 ,  B22F12/40 ,  B22F12/90 ,  B23K15/0033 ,  B23K15/0086 ,  B33Y10/00 ,  B33Y30/00 ,  B22F2999/00 ,  B22F10/30 ,  B22F12/13 ,  B22F12/50 ,  B22F2203/11 ,  B22F2203/03

摘要： An additive manufacturing device performs manufacturing of an additively manufactured article by supplying a powder material to an irradiation region of an electron beam, laying and leveling the powder material, irradiating the powder material with the electron beam, and melting the powder material. The additive manufacturing device determines whether or not the powder material has scattered during manufacturing of the article. When it is determined that the powder material has scattered, an irradiation region R is heated by a heater before a new powder material is supplied to the irradiation region R. Manufacturing of the article is restarted after the new powder material has been supplied to the heated irradiation region.