Method for bending section-sheet, plate strip and like material

Details Method for bending section-sheet, plate strip and like material Method for bending section-sheet, plate strip and like material

1977-06-17

1980-09-02

Combs, Ervin M.

Metal deforming

Process

Deforming sheet metal

72380, 72385, 72389, 113116Y, B21D 502, B21D 3100

Patent

active

042200318

ABSTRACT:
A corrugated metal sheet is incrementally bent perpendicularly with respect to its corrugations, by repeatedly transversely indenting upwardly the bottoms of the corrugation valleys so that the indentations extend in lines transversely across the sheet and extend into the corrugation sides which interconnect the valleys and ridges of the sheet. Each line of indentation causes the sheet to bend to some degree without detrimental stretching or drawing of the sheet.

REFERENCES:
patent: 1434068 (1922-10-01), Schlafly
patent: 2370702 (1945-03-01), Yoder
patent: 2775284 (1956-12-01), Hermann
patent: 2944583 (1960-07-01), Welindt
patent: 3059733 (1962-10-01), Hermann
patent: 3111788 (1963-11-01), Ouelet
patent: 3395438 (1968-08-01), Seeff
patent: 3664170 (1972-05-01), Davis
patent: 3664170 (1972-05-01), Davis
patent: 3824664 (1974-07-01), Seeff

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