Twisted hollow airfoil with non-twisted internal support ribs
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United States of America Patent
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-
Mar 28, 1989
Grant Date -
N/A
app pub date -
Nov 3, 1986
filing date -
Nov 3, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A transversely twisted hollow airfoil member is provided by diffusion bonding together airfoil components each having a skin or shell in the form of a partial airfoil twisted transversely along its length and one or more internal support ribs having bonding surfaces which are not twisted transversely along their length. Each support rib extends substantially normal to a bonding plane defined by bonding surfaces on the support ribs. As a result of the rib and bonding surface orientation, the airfoil components can be forged and the components bonded together at elevated temperature in short times between dies movable by high pressure toward one another normal to the bonding surfaces.
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