Metal deforming – By use of 'flying tool' engaging moving work – Including orbitally-moving tool-face
Patent
1983-10-07
1985-06-25
Crane, Daniel C.
Metal deforming
By use of 'flying tool' engaging moving work
Including orbitally-moving tool-face
72177, 72379, 29150, 411427, 52364, B21B 108, B21D 5336
Patent
active
045245983
ABSTRACT:
A method of fabricating sheet metal is described wherein a simulated opening for a threaded fastener is formed in sheet metal solely by roll forming a U-shaped loop segment in the sheet metal and then creating a simulated opening therein by crimping the sheet metal around a pin removably inserted in the loop segment. The simulated opening or hole is of sufficient depth to accommodate the entire length of the fastener and is formed without any drilling or punching operations.
REFERENCES:
patent: 481207 (1892-08-01), Smith
patent: 1801559 (1931-04-01), Kellogg
patent: 1842678 (1932-01-01), Kreuzeder
patent: 1874732 (1932-08-01), Young
patent: 2004700 (1935-06-01), Laemmel
patent: 3020631 (1962-02-01), Kennedy
patent: 3792560 (1974-02-01), Naylor
Crane Daniel C.
Westinghouse Electric Corp.
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