Title:
積層造形装置及びその改造方法
Document Type and Number:
Japanese Patent JP7159103
Kind Code:
B2
Abstract:
An additive manufacturing apparatus that makes it unnecessary to use a heater power supply, and makes it possible to attempt to reduce the cost, by effectively using an electron beam, and a modification method therefor are provided.In an additive manufacturing apparatus includes: a conductive stage 2 arranged in a vacuum chamber 1; a conductive base plate 3 arranged on a top side of the stage 2; a metal-material supply device 5 that supplies a metal material 4 onto a top side of the base plate 3; an electron beam gun 7 that irradiates, with an electron beam 6, the metal material 4 supplied by the metal-material supply device 5, and melts and solidifies the metal material 4; a grounding circuit 8 that grounds the stage 2 and the base plate 3; and a controller 9 that controls the metal-material supply device 5 and the electron beam gun 7. The additive manufacturing apparatus includes a resistance heating element 11 that is arranged between the stage 2 and the base plate 3, and generates heat by a current produced by electron-beam emission from the electron beam gun 7.
Inventors:
Shigenobu Eguchi
Shinya Konno
Shinya Konno
Application Number:
JP2019084936A
Publication Date:
October 24, 2022
Filing Date:
April 26, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
B23K15/00; B22F3/105; B22F3/16; B33Y30/00; B33Y50/02
Domestic Patent References:
| JP2017165998A | ||||
| JP1166955U | ||||
| JP2015193135A | ||||
| JP2019007051A | ||||
| JP55051572A | ||||
| JP49042418B1 |
Foreign References:
| US20100108641 |
Attorney, Agent or Firm:
Patent Attorney Corporation Kaichi