US 12,011,876 B2
Support system for a production system, and workpiece holder for same
Daniel Stadlmayr, Perg (AT); Wolfgang Hoeller, Perg (AT); and Urs Hulliger, Baerau (CH)
Assigned to CADS ADDITIVE GMBH, Perg (AT); and PETER LEHMANN AG, Baerau (CH)
Appl. No. 16/763,662
Filed by CADS Additive GmbH, Perg (AT); and PETER LEHMANN AG, Baerau (CH)
PCT Filed Nov. 8, 2018, PCT No. PCT/EP2018/080600
§ 371(c)(1), (2) Date May 13, 2020,
PCT Pub. No. WO2019/092098, PCT Pub. Date May 16, 2019.
Claims priority of application No. 17201412 (EP), filed on Nov. 13, 2017.
Prior Publication US 2020/0361141 A1, Nov. 19, 2020
Int. Cl. B29C 64/245 (2017.01); B22F 10/47 (2021.01); B25B 11/00 (2006.01); B29C 64/153 (2017.01); B33Y 10/00 (2015.01); B22F 10/28 (2021.01); B22F 12/00 (2021.01); B22F 12/30 (2021.01); B33Y 30/00 (2015.01)
CPC B29C 64/245 (2017.08) [B22F 10/47 (2021.01); B25B 11/00 (2013.01); B29C 64/153 (2017.08); B33Y 10/00 (2014.12); B22F 10/28 (2021.01); B22F 12/226 (2021.01); B22F 12/30 (2021.01); B22F 2999/00 (2013.01); B33Y 30/00 (2014.12)] 16 Claims
OG exemplary drawing
 
1. Support system for a manufacturing system, comprising:
a base support (6) that is arranged to be secured in a process chamber of the manufacturing system and comprises at least one positioning element; and
a workpiece holder (8) on which a workpiece can be produced according to a manufacturing process including the layered application of a raw material in powder form, wherein
the workpiece holder (8) has a lower side (12) and a building side as an upper side (11) which is located substantially opposite the lower side (12),
on the lower side (12), the workpiece holder (8) has at least one first positioning device for releasable, positionally accurate attachment to the base support (6) of the support system,
the at least one positioning element (10) and the at least one first positioning device (14) are designed in a complementary manner and form a pin/hole pair comprising a pin and a hole,
at least one section (87) of the pin is made of a first material having a first thermal expansion coefficient, and a retaining section (28, 42, 91) of the hole that is decisive for the positioning accuracy is made of a second material having a second thermal expansion coefficient, and
wherein the second thermal expansion coefficient is lower than the first thermal expansion coefficient such that a clamping effect results between the pin and the surrounding hole in the event of a temperature increase of the support system during the manufacturing process due to the expansion of the section (87) of the pin, or
wherein the first thermal expansion coefficient is lower than the second thermal expansion coefficient such that a clamping effect results between the pin and the surrounding hole in the event of a temperature increase of the support system during the manufacturing process due to the expansion of the retaining section (28, 42, 91) of the hole.