US 12,030,248 B2
Device and method for producing three-dimensional workpieces
Toni Adam Krol, Lübeck (DE); Gesa Rolink, Lübeck (DE); Bodo Haack, Lübeck (DE); and Birk Hoppe, Lübeck (DE)
Assigned to Nikon SLM Solutions AG, Lübeck (DE)
Filed by Nikon SLM Solutions AG, Lübeck (DE)
Filed on Jun. 22, 2023, as Appl. No. 18/212,871.
Application 18/212,871 is a continuation of application No. 17/575,822, filed on Jan. 14, 2022, granted, now 11,718,027.
Application 17/575,822 is a continuation of application No. 16/495,958, granted, now 11,247,390, issued on Feb. 15, 2022, previously published as PCT/EP2018/055770, filed on Mar. 8, 2018.
Claims priority of application No. 10 2017 205 027.6 (DE), filed on Mar. 24, 2017.
Prior Publication US 2023/0330931 A1, Oct. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 64/232 (2017.01); B22F 10/28 (2021.01); B22F 10/322 (2021.01); B22F 12/00 (2021.01); B22F 12/70 (2021.01); B22F 12/86 (2021.01); B28B 1/00 (2006.01); B28B 17/00 (2006.01); B29C 64/153 (2017.01); B29C 64/371 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01); B33Y 50/02 (2015.01); B22F 10/32 (2021.01); B22F 12/41 (2021.01); B22F 12/44 (2021.01); B22F 12/49 (2021.01)
CPC B29C 64/232 (2017.08) [B22F 10/28 (2021.01); B22F 10/322 (2021.01); B22F 12/222 (2021.01); B22F 12/224 (2021.01); B22F 12/38 (2021.01); B22F 12/70 (2021.01); B22F 12/86 (2021.01); B28B 1/001 (2013.01); B28B 17/0081 (2013.01); B29C 64/153 (2017.08); B29C 64/371 (2017.08); B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 50/02 (2014.12); B22F 10/32 (2021.01); B22F 12/41 (2021.01); B22F 12/44 (2021.01); B22F 12/49 (2021.01)] 14 Claims
OG exemplary drawing
 
1. A device for producing three-dimensional workpieces, comprising:
a carrier for receiving raw material powder,
a build chamber wall which extends substantially vertically and which is adapted to laterally delimit and support the raw material powder applied to the carrier,
an irradiation unit for selectively irradiating the raw material powder applied to the carrier with electromagnetic radiation or particle radiation in order to produce on the carrier a workpiece manufactured from the raw material powder by an additive layer building method, wherein the irradiation unit comprises at least one optical element, and
a vertical movement device which is adapted to move the irradiation unit vertically with respect to the carrier, wherein the build chamber wall and the carrier are adapted to be connected to one another in a stationary manner during the vertical movement of the irradiation unit so that the vertical movement takes place relative to the carrier and relative to the build chamber wall,
wherein the build chamber wall is rigidly connected to the carrier and to a base of the device, or
wherein the build chamber wall is detachably connected to the carrier and to the base and is adapted to be detached from the carrier on completion of a build process, in order to remove the finished workpiece.