Ironing ring having improved lubricating characteristics

Details Ironing ring having improved lubricating characteristics Ironing ring having improved lubricating characteristics

1975-11-24

1977-08-09

Combs, E. M.

Metal deforming

With cleaning, descaling, or lubrication of work or product

Lubricating

72349, 72467, B21D 2228

Patent

active

040402827

ABSTRACT:
An ironing ring for use in the manufacture of drawn and ironed unitary sheet metal can bodies made from flat rolled steel blackplate. The interior working surface of the ironing ring is treated by diamond wheel grinding, or the like, to form fine-line indentations which decrease the surface contact of the ironing ring with the metal surface being ironed. The linearly extended indentations extend over the entry portion of the ring to, or into, the dwell portion of the ring and help draw ironing lubricant into the ring during the ironing operation.

REFERENCES:
patent: RE23095 (1949-03-01), Keller
patent: 2821156 (1958-01-01), Lyon
patent: 2971644 (1961-02-01), Sejournet
patent: 3670543 (1972-06-01), Bolt et al.
patent: 3705509 (1972-12-01), Haller
patent: 3780553 (1973-12-01), Athey
patent: 3930396 (1976-01-01), Martinez

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