Method of shaping metal

Details Method of shaping metal Method of shaping metal

1980-10-27

1982-11-09

Larson, Lowell A.

Metal deforming

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

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

72187, B21D 514

Patent

active

043578187

ABSTRACT:
A method of shaping metal in the form of a parallel-sided elongate sheet to make from it a formed profile that is of uniform cross-section except that at least one longitudinal edge is worked to generate a repeating pattern along its length, comprising cold working the metal sheet successively (a) by rolling to increase the width of the sheet, (b) with one or more than one knurling wheel that generates the repeating pattern in the longitudinal edge or edges of the metal sheet and at the same time reduces the width of the metal sheet to substantially its original value, and (c) by roll-forming (b) to the said profile, which may for example be a channel of substantially U-shaped cross-section.

REFERENCES:
patent: 1963724 (1934-06-01), Taylor
patent: 2090706 (1937-08-01), Sheperdson
patent: 2292810 (1942-08-01), Woeller
patent: 3006401 (1961-10-01), Wognum et al.
patent: 3206965 (1965-09-01), Gauer
patent: 3267252 (1966-08-01), Morris
patent: 3587275 (1971-06-01), Brennan
patent: 3690139 (1972-09-01), Brennan
patent: 3877275 (1975-04-01), Attwood

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