Method of forming seamless container

Details Method of forming seamless container Method of forming seamless container

1979-06-14

1984-05-01

Goldberg, Howard N.

Sheet metal container making

Method

72 42, B21D 5102

Patent

active

044458134

ABSTRACT:
A precoated stock material for use in forming a drawn and ironed container and a method of forming such container is disclosed herein. The stock material initially has a layer of lubricant applied to one or both surfaces of the metal base with the lubricant consisting essentially of a fatty acid ester of a mono or polyhydric alcohol and having a distribution of less than 3 mg./in..sup.2. The method contemplates applying the layer of lubricant to a metal stock, such as aluminum, black plate or tinplate, cutting a disc from the metal stock, and transforming the disc into a drawn and ironed container without additional lubricant being applied to the tooling.

REFERENCES:
patent: 3282971 (1966-11-01), Metro et al.
patent: 3478554 (1969-11-01), Demsey
patent: 3577753 (1971-05-01), Shah
patent: 3728147 (1973-04-01), Jenkins et al.
patent: 3749598 (1973-07-01), Kushima et al.
patent: 3826675 (1974-07-01), Smith et al.
patent: 4032678 (1977-06-01), Perfetti et al.

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