Metal deforming – By deflecting successively-presented portions of work during... – With cutting of work or product
Patent
1984-03-21
1984-10-16
Combs, E. Michael
Metal deforming
By deflecting successively-presented portions of work during...
With cutting of work or product
72181, 72203, B21B 104
Patent
active
044767030
ABSTRACT:
Method and means for preforming the long edges of steel plate prior to manufacture into pipe by the U-O Process or the like by utilizing plate of a width exceeding that required for pipe of a given diameter by an amount at each edge having an excess at least equal to the width of the pipe. Roll-forming the plate to use the excess [at least equal to the width of the pipe. Roll-forming the plate to use the excess] width thereof as a lever arm to obtain a bend at the bitter edges of the pipe (edges required for pipe) of a radius required for the pipe and thereafter shearing the plate to form the bitter edges, followed by bevelling and polishing the bitter edges, and further roll-forming the edge area to complete the preform thereof.
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Combs E. Michael
Kaiser Steel (Delaware), Inc.
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