Cryogenic shearing of metal

Details Cryogenic shearing of metal Cryogenic shearing of metal

1974-05-20

1976-09-14

Meister, J. M.

Cutting

Processes

With preparatory or simultaneous ancillary treatment of work

83170, B26D 708

Patent

active

039799816

ABSTRACT:
A process for shearing metal which substantially eliminates the effects of plastic deformation in the sheared metal edge. The process comprises (1) cooling the work metal to a cryogenic temperature, and (2) shearing the cooled metal to form a sheared workpiece having edges relatively free of plastic deformation and dimensional distortion. The shearing operations contemplated by the invention include punching, blanking, piercing and slitting.

REFERENCES:
patent: 2551094 (1951-05-01), Bryce et al.
patent: 2586532 (1952-02-01), Granfield
patent: 2956717 (1960-10-01), Scharf
patent: 3151991 (1964-10-01), Evans et al.
patent: 3332307 (1967-07-01), Shanok
patent: 3646841 (1972-03-01), Villalobos

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