Method for manufacturing rings or discs having a blade or vane rim
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United States of America Patent
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-
Aug 10, 1993
Grant Date -
N/A
app pub date -
Jun 11, 1991
filing date -
Dec 21, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Method for manufacturing rings or discs having a blade or vane rim from a powder which is received in a mold cavity formed by a gas-tight casing (10, 11, 12) and is isostatically hot pressed in the casing to form a monolithic body. A core (13) of hexagonal boron nitride or graphite having through apertures (14) corresponding to the profile of the individual blades or vanes, is located in the mold cavity said apertures being filled with powder to form the blades or vanes as an integrated portion of the monolithic body obtained by the isostatic hot pressing.
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