Title:
三次元造形装置
Document Type and Number:
Japanese Patent JP7264236
Kind Code:
B2
Abstract:
A three-dimensional manufacturing apparatus includes a rotary drive unit that rotates a table around a rotation axis, a region setting unit that sets a plurality of divided regions obtained by dividing an irradiation region corresponding to a horizontal cross section of a modeled object in a circumferential direction, a beam source that irradiates a powder material with an electron beam for each of the divided regions, and a rotation speed adjusting unit that adjusts a rotation speed of the table. An area per unit central angle of a first divided region is smaller than an area per unit central angle of a second divided region. The rotation speed adjusting unit performs adjustment so that a rotation speed of the table during a period of irradiating the first divided region with the energy beam becomes faster than a rotation speed of the table during a period of irradiating the second divided region with the energy beam.
Inventors:
Shimizu Roku
Yuichiro Nakayama
Yuichiro Nakayama
Application Number:
JP2021512128A
Publication Date:
April 25, 2023
Filing Date:
March 30, 2020
Export Citation:
Assignee:
Ihi Co., Ltd.
International Classes:
B29C64/241; B22F10/28; B22F10/85; B22F12/13; B22F12/37; B22F12/40; B29C64/153; B29C64/245; B29C64/264; B29C64/393; B33Y30/00; B33Y50/02
Domestic Patent References:
| JP2005534543A | ||||
| JP2018507957A | ||||
| JP2016074205A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Hideki Komatsu
Yoshiki Kuroki
Hideki Komatsu