US 12,434,300 B2
Method for separating a part blank from a support by fluid expansion in the additively manufactured support
Guilhem Kevin Combes, Moissy-Cramayel (FR); Sébastien Vincent François Dreano, Moissy-Cramayel (FR); and Pierre Jean-Baptiste Metge, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 17/755,466
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Oct. 20, 2020, PCT No. PCT/FR2020/051886
§ 371(c)(1), (2) Date Apr. 29, 2022,
PCT Pub. No. WO2021/084186, PCT Pub. Date May 6, 2021.
Claims priority of application No. 1912226 (FR), filed on Oct. 30, 2019.
Prior Publication US 2024/0165708 A1, May 23, 2024
Int. Cl. B22F 10/40 (2021.01); B22F 3/24 (2006.01); B22F 5/00 (2006.01); B22F 10/64 (2021.01); B33Y 40/20 (2020.01)
CPC B22F 10/40 (2021.01) [B22F 5/009 (2013.01); B22F 10/64 (2021.01); B22F 2003/247 (2013.01); B22F 2003/248 (2013.01); B33Y 40/20 (2020.01)] 15 Claims
OG exemplary drawing
 
1. A method for manufacturing a turbine engine part, using a method for separating a blank of the part from a support for the part blank,
wherein the support and the part blank are manufactured by metallic material powder-bed additive manufacturing on a manufacturing plate, wherein the support is located between the manufacturing plate and the part blank, wherein the support comprises an inner cavity containing a fluid,
wherein the method for separating the part blank from the support comprises:
a heating of the support to deform the support by fluid expansion in the inner cavity until the support is separated from the part blank, and
wherein the inner cavity is configured to stretch between 60% and 100% along a maximum deformation direction of the inner cavity.