Apparatus and method for forming steps in profiled sheets of mat

Details Apparatus and method for forming steps in profiled sheets of mat Apparatus and method for forming steps in profiled sheets of mat

1978-05-04

1981-02-17

Larson, Lowell A.

Metal deforming

By deflecting successively-presented portions of work during...

By use of deflector arranged to bend work transversely of...

72184, 72385, 428603, 113116Y, B21D 1118

Patent

active

042507286

ABSTRACT:
Two pairs of dies are arranged adjacent each other so that each pair can clamp onto a metal sheet between them. One pair is situated slightly below, or stepped down from, the other pair. One pair of dies clamps onto the sheet, and then the other pair is clamped onto it to bend the sheet so that a step is formed in the sheet between the two pairs of dies, corresponding to the step down from one pair of dies to the other.

REFERENCES:
patent: 2901951 (1959-09-01), Hochfeld
patent: 3938244 (1976-02-01), Merle
patent: 4052948 (1977-10-01), Straza et al.

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