Sheet rolling method

Details Sheet rolling method Sheet rolling method

1978-08-28

1981-02-17

Combs, Ervin M.

Metal deforming

With exposure of work to gas, vapor, mist, or modified...

72 40, 72 53, B21B 900, B21B 4502, B21B 4506

Patent

active

042507260

ABSTRACT:
According to the invention, both sides of a sheet metal billet are worked with solid hard spherical microbodies prior to each reverse rolling operation. Microbodies are fed by means of a gas jet and have a diameter of 40 to 200 microns. They are of a material selected from the group consisting of glass, aluminum oxide, zirconium oxide, chrome-nickel alloys, and ice. The rolling produces a mirror or dull finish, an effect normally attained by etching, grinding or polishing.

REFERENCES:
patent: 1560749 (1925-11-01), Witherow
patent: 2197022 (1940-04-01), Petterson
patent: 3019522 (1962-02-01), Bluth et al.
patent: 3138845 (1964-06-01), Hellman et al.
patent: 3766763 (1973-10-01), Cofer et al.
patent: 3811305 (1974-05-01), Saylor
patent: 4043166 (1977-08-01), Leroy

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