公开(公告)号：WO2021003271A2

公开(公告)日：2021-01-07

申请号：PCT/US2020/040498

申请日：2020-07-01

Applicant: NIKON CORPORATION

Inventor： PHILLIPS, Alton Hugh ,  ROSSI, Joseph P. ,  MARQUEZ, Johnathan Agustin ,  JEONG, Yoon Jung ,  GUO, Lexian ,  CHANG, Patrick Shih ,  GOODWIN, Eric Peter ,  BINNARD, Michael Birk ,  HERR, Brett William ,  BJORK, Matthew Parker-McCormick ,  COON, Paul Derek ,  ISHIKAWA, Motofusa

IPC: B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/30 ,  B29C64/321 ,  B29C64/343 ,  B33Y40/00 ,  B29C64/236 ,  B29C64/245 ,  B29C64/329 ,  B29C64/255 ,  B22F12/37 ,  B22F12/90 ,  B22F10/85 ,  B22F12/52 ,  B22F10/20 ,  B22F10/28 ,  B22F10/30 ,  B22F12/00 ,  B22F12/46 ,  B29C64/205 ,  B33Y50/02

Abstract: A processing machine (10) for building an object (11) from powder (12) includes a build platform (26A); a powder supply assembly (18) that deposits the powder (12) onto the build platform (26A) to form a powder layer (13); and an energy system (22) that directs an energy beam (22D) at a portion of the powder (12) on the build platform (26A) to form a portion of the object (11). The powder supply assembly (18) can include (i) a powder container (640A) that retains the powder (12); (ii) a supply outlet (639) positioned over the build platform (26A); and (ii) a flow control assembly (642) that selectively controls the flow of the powder (12) from the supply outlet (639).