Metal deforming – By deflecting successively-presented portions of work during... – By use of deflected arranged to provide longitudinally...
Patent
1981-12-01
1986-09-30
Crane, Daniel C.
Metal deforming
By deflecting successively-presented portions of work during...
By use of deflected arranged to provide longitudinally...
72203, 72377, 242 561, B21D 102
Patent
active
046141014
ABSTRACT:
Multiple strands of metal slit from strip which varies in thickness from edge to center are separately coiled on the same mandrel into uniformly tight coils by selectively working the strands so as to reduce the thickness and elongate thicker strands more than thinner strands. The working is preferably accomplished by imparting reverse bends to the strands while tensioning them in amounts less than the tensile yield strength of the metal.
REFERENCES:
patent: 2216869 (1940-10-01), Yoder et al.
patent: 3552175 (1971-01-01), Kinnavy
patent: 4173313 (1979-11-01), Rogers
patent: 4201352 (1980-05-01), Madachy
patent: 4286451 (1981-09-01), Chang
patent: 4347723 (1982-09-01), Bradlee
Crane Daniel C.
Herr-Voss Corporation
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