公开(公告)号：US20180169938A1

公开(公告)日：2018-06-21

申请号：US15119575

申请日：2015-11-13

Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

Inventor： Takanari INENAGA ,  Tetsuyoshi FURUKAWA

IPC: B29C64/153 ,  B29C64/268 ,  B29C64/118 ,  B29C64/147 ,  B29C64/176

CPC classification number: B29C64/153 ,  B22F3/1055 ,  B22F2003/1056 ,  B29C64/118 ,  B29C64/147 ,  B29C64/176 ,  B29C64/268 ,  B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  Y02P10/295

Abstract: The shaping speed of a three-dimensional laminated and shaped object by a three-dimensional laminating and shaping apparatus is increased. There is provided a three-dimensional laminating and shaping apparatus for shaping a three-dimensional laminated and shaped object by irradiating a powder with an electron beam. The three-dimensional laminating and shaping apparatus includes a shaping box in which the three-dimensional laminated and shaped object is shaped. The three-dimensional laminating and shaping apparatus includes a heating unit for preheating that is arranged outside the shaping box. The heating unit for preheating is arranged on a side surface side of the shaping box. Furthermore, the heating units for preheating are arranged to surround the shaping box from side surfaces.