Metal deforming – By application of fluent medium – or energy field – Using fixed die
Patent
1985-12-26
1987-11-24
Larson, Lowell A.
Metal deforming
By application of fluent medium, or energy field
Using fixed die
72 38, 72 54, 72709, 29421R, B21D 2602
Patent
active
047080086
ABSTRACT:
An apparatus and method for controlling the superplastic forming process by measuring and controlling the volume displaced by the blank being formed so as to measure total strain or surface area increase of the blank.
REFERENCES:
patent: 3340101 (1967-09-01), Fields, Jr. et al.
patent: 4233829 (1980-11-01), Hamilton et al.
patent: 4352280 (1982-10-01), Ghosh
patent: 4354369 (1982-10-01), Hamilton
patent: 4489579 (1984-12-01), Daime et al.
patent: 4513497 (1985-04-01), Finch
Ecklund Richard C.
Hayase Masashi
Walkington Robert J.
Williams Neil R.
Yasui Ken K.
Finch George W.
Jones David B.
Larson Lowell A.
Loef Paul T.
McDonnell Douglas Corporation
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