Build cylinder arrangements for machines for layered production of three-dimensional objects having a fiber metal seal

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United States of America Patent

PATENT NO 11428319
APP PUB NO 20190128419A1
SERIAL NO

16226739

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Abstract

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Build cylinder arrangements for machines for the layered production of three-dimensional objects by sintering or melting with a high-energy beam, of powdered material, are disclosed and have a base member and a piston that can be moved on an inner side of the base member along a central axis of the base member. The piston has at its upper side a substrate for building a three-dimensional object, and on the piston is a seal in abutment with the inner side of the base member for sealing the powdered material. The seal is a circumferential fiber metal seal of metal fibers that are pressed together and the pressed metal fibers are arranged with resilient compression stress between the piston and the inner side of the base member.

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Patent Owner(s)

Patent OwnerAddress
TRUMPF LASER- UND SYSTEMTECHNIK GMBH71254 DITZINGEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pieger, Markus Stuttgart, DE 15 54

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