Method for incorporating abradable material into a housing by isostatic pressing

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United States of America Patent

PATENT NO 9943908
SERIAL NO

14433586

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Abstract

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A method of fabricating a part (10) having a housing (20) that includes an opening (25) opening out in a free surface (15) of the part (10). The method comprises the following steps:

    (a) closing the opening (25) with a sheath (30), the sheath having a vacuum orifice (31) and a filling orifice (32);(b) filling the housing (20) with an abradable material (50) constituted by particles by using the filling orifice (32), and evacuating the housing (20) using the vacuum orifice (31);(c) closing the orifices (31, 32) in leaktight manner;(d) deforming the sheath (30) so as to compress the abradable material (50) in the housing (20) and heating the abradable material (50) to a temperature higher than 150° C. so that the abradable material (50) becomes sintered; and(e) subsequently lowering the temperature and the pressure.

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Patent Owner(s)

Patent OwnerAddress
SAFRAN AIRCRAFT ENGINES75015 PARIS

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ferrer, Laurent Lieusaint, FR 22 33

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