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1. (WO2013160198) METHOD FOR MANUFACTURING A COMPONENT HAVING AN OVERHANG BY LAYER-WISE BUILDUP

Pub. No.:    WO/2013/160198    International Application No.:    PCT/EP2013/058148
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Sat Apr 20 01:59:59 CEST 2013
IPC: B22F 3/105
B22F 5/10
B23P 15/00
Applicants: AIRBUS OPERATIONS GMBH
LIEBHERR-AEROSPACE LINDENBERG GMBH
HUMMEL, Gerhard
RAPP, Philipp
KROLL, Lothar
SCHUBERT, Frank
KAUSCH, Martin
Inventors: HUMMEL, Gerhard
RAPP, Philipp
KROLL, Lothar
SCHUBERT, Frank
KAUSCH, Martin
Title: METHOD FOR MANUFACTURING A COMPONENT HAVING AN OVERHANG BY LAYER-WISE BUILDUP
Abstract:
A method for manufacturing a component (2e) having an overhang comprises the multiple carrying out of process steps for the layer-wise buildup of the component, wherein said process steps comprise applying a layer section with predetermined dimensions of a particulate material in a predetermined region on a base layer, and heating the layer section by means of a heat source in such a manner that the particles of the material within predetermined dimensions bond. In this arrangement a local buildup angle, which occurs between two consecutive layer sections (16), of an overhang does not exceed a predetermined maximum buildup angle (α) to a perpendicular of the base layer. In this manner hydraulic cross sections whose circular substitute diameter exceeds a value of 10 mm may be generatively manufactured without the aid of support structures.