Steel sheets for drawing and ironing worked cans

Details Steel sheets for drawing and ironing worked cans Steel sheets for drawing and ironing worked cans

1987-06-23

1988-11-08

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having variation in thickness

428687, 428925, B21D 5300

Patent

active

047833785

ABSTRACT:
A steel sheet for DI can having improved DI workability and resistance to die abrasion has such a surface profile that a center-line average surface roughness is within a range of 0.1.about.4.0 .mu.m and a microscopic shape is comprised of mountain portions, groove-like valley portions and middle flat portions satisfying particular dimension relations.

REFERENCES:
patent: 413374 (1889-10-01), Paull
patent: 2991544 (1961-07-01), Gotsch et al.
patent: 3619881 (1971-11-01), Bills et al.
patent: 3623850 (1971-11-01), Horvath
patent: 4071657 (1978-01-01), Rault
patent: 4200382 (1980-04-01), Friedman
patent: 4679288 (1987-07-01), Monfort et al.
Cahiers D'Informations Techniques de la Revue de Metallurgie vol. 80, No. 5, May 1983, pp. 393-401, Paris, Fr., J. Crahay, et al.; "Gravure de la Rugosite des Cylindres de Laminoir par Impulsions Laser".

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