Method of using profiles, and producing metal sheets with steppe

Details Method of using profiles, and producing metal sheets with steppe Method of using profiles, and producing metal sheets with steppe

1996-09-09

2000-06-06

Larson, Lowell A.

Metal deforming

Process

Deforming stacked blanks

723652, B21B 138

Patent

active

060704489

ABSTRACT:
In a method of using a closed, extruded profile, developing a hollow profile and producing a stepped cross-sectional metal sheet with different wall thicknesses, the profile or the hollow profile is used as a starting material for rolling. The hollow profile has only one wall, which turns back in on itself in the peripheral direction without branching and is of different thicknesses at different points of the periphery. The hollow profile is separated along a surface line, is formed into the semifinished article and is subsequently rolled to produce the metal sheet.

REFERENCES:
patent: 1915084 (1933-06-01), Bonsall
patent: 2798604 (1957-07-01), Todd
patent: 3164898 (1965-01-01), Kotrbaty
patent: 3540117 (1970-11-01), Kennedy et al.
patent: 3683471 (1972-08-01), Lemelson
patent: 5108519 (1992-04-01), Armanie et al.

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