Process for making obliquely corrugated thin metal strips

Details Process for making obliquely corrugated thin metal strips Process for making obliquely corrugated thin metal strips

1987-05-18

1988-06-07

Larson, Lowell A.

Metal deforming

By use of 'flying tool' engaging moving work

With cutting

72196, 72379, 225 2, 225 5, 493352, 493463, 29413, 29415, 29417, B21D 1304, B21D 1310

Patent

active

047488387

ABSTRACT:
A method for making a corrugated thin metal strip wherein corrugations are linear and extend obliquely from one longitudinal marginal edge to the opposite longitudinal marginal edge of the strip. The invention involves passing the thin metal strip through corrugating rolls for impressing a series of single apex, V-shaped chevron corrugations into the surface of the metal strip. The rolling of the strip between the helical gears is done in such a way that the apex of the V-shaped chevron is the last portion to leave the corrugating rolls whereby the apex is in tension and enables metal strip to be split into two obliquely corrugated metal strips along the apices of the chevron.

REFERENCES:
patent: 2798515 (1957-07-01), York
patent: 3447352 (1969-06-01), Miller
patent: 3825412 (1974-07-01), Mullender

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