US 12,301,076 B2
Method for sintering a multicomponent object to be sintered, electric machine, and electric vehicle
Carsten Schuh, Baldham (DE); Thomas Soller, Bayern (DE); and Rolf Vollmer, Gersfeld (DE)
Assigned to SIEMENS AKTIENGESELLSCHAFT, Munich (DE)
Appl. No. 17/280,437
Filed by Siemens Aktiengesellschaft, Munich (DE)
PCT Filed Sep. 6, 2019, PCT No. PCT/EP2019/073799
§ 371(c)(1), (2) Date Mar. 26, 2021,
PCT Pub. No. WO2020/064299, PCT Pub. Date Apr. 2, 2020.
Claims priority of application No. 18197125 (EP), filed on Sep. 27, 2018.
Prior Publication US 2021/0379656 A1, Dec. 9, 2021
Int. Cl. B22F 7/06 (2006.01); B22F 5/08 (2006.01); B22F 10/10 (2021.01); B33Y 10/00 (2015.01); B33Y 40/00 (2020.01); B33Y 80/00 (2015.01); H02K 15/02 (2006.01)
CPC H02K 15/02 (2013.01) [B22F 5/08 (2013.01); B22F 7/062 (2013.01); B33Y 10/00 (2014.12); B33Y 40/00 (2014.12); B33Y 80/00 (2014.12)] 11 Claims
OG exemplary drawing
 
1. A method for sintering a multicomponent sinter product, the method comprising:
printing a first component consisting of a first material having a first rate of shrinkage during sintering, the first component including one or more recesses disposed around a radial edge of the first component;
forming a second component consisting of a second material having a second rate of shrinkage during sintering, wherein forming the second component includes a separate process from printing the first component;
wherein the first rate of shrinkage during sintering is different from the second rate of shrinkage during sintering;
inserting at least a portion of the second component into the one or more recesses of the first component; and
shrinking the first component and the second component onto one another by sintering;
wherein the one or more recesses each include a respective edge region having a step in a radial direction as defined by the radial edge.