公开(公告)号：US20200276640A1

公开(公告)日：2020-09-03

申请号：US16765191

申请日：2017-11-20

Applicant: SLM Solutions Group AG

Inventor： Karsten Huebinger ,  Bernd Mueller ,  Peter Koerner ,  Daniel Brueck ,  Torsten Kuntoff ,  Soenke Weiss

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: An apparatus for producing a three-dimensional work piece is provided. The apparatus comprises a carrier configured to receive multiple layers of raw material powder, an irradiation unit configured to direct a radiation beam to predetermined in sites of an uppermost layer of the raw material powder in order to solidify the raw material powder at the predetermined sites, a process chamber defining a volume through which the radiation beam is directed from the Irradiation unit to the raw material powder, and a support structure provided outside the process chamber and supporting the irradiation unit.

公开(公告)号：US20200230696A1

公开(公告)日：2020-07-23

申请号：US16648696

申请日：2017-10-09

Applicant: SLM Solutions Group AG

Inventor： Bernd Mueller

IPC: B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: An apparatus for producing three-dimensional work pieces is provided. The apparatus comprises a carrier configured to receive multiple layers of raw material, and an irradiation unit configured to generate a radiation beam and to direct the radiation beam to predetermined sites of an uppermost layer of the raw material in order to solidify the raw material at the predetermined sites. The irradiation unit comprises a radiation source configured to generate the radiation beam, a first scanning unit configured to receive the radiation beam and to scan the radiation beam over a first irradiation area of the uppermost layer of the raw material, a second scanning unit configured to receive the radiation beam and to scan the radiation beam over a second irradiation area of the uppermost layer of the raw material, and a switching unit configured to direct the radiation beam generated by the radiation source to the first scanning unit or the second scanning unit. The apparatus further comprises a control unit configured to perform control of the switching unit to switch from a first switching state, in which the radiation beam is directed to the first scanning unit and not to the second scanning unit, to a second switching state, in which the radiation beam is directed to the second scanning unit and not to the first scanning unit.