Containers

Details Containers Containers

1996-05-02

1998-04-21

Larson, Lowell A.

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

72465, B21D 2200, B21D 2221, B21B 2500

Patent

active

057406928

ABSTRACT:
An apparatus, for forming a container body from a sheet metal component, comprises a punch 31, an annular die 10, axially aligned with the punch, and an annular blankholder 32 surrounding the punch so arranged that relative motion as between the blankholder 32 and an end face 12 of the die restrains the periphery of the sheet metal component as the punch enters the annular die; the die 10 has a spherical bearing surface 17 centered on the longitudinal punch axis, and a die holder 20 has an arcuate surface 22 to co-operate with the spherical surface 17 of the die to impose a restraining force on sheet metal between the die face 12 and the blankholder, 32.

REFERENCES:
patent: 3258948 (1966-07-01), Carlson, Sr.
patent: 3745804 (1973-07-01), Langewis et al.
patent: 4051707 (1977-10-01), Valek et al.
patent: 4195510 (1980-04-01), Juergens
patent: 4554815 (1985-11-01), Weishalla
patent: 4627258 (1986-12-01), Loges et al.
patent: 4818210 (1989-04-01), Van Dijk et al.
Search Report dated Nov. 6, 1995.
Search Report dated Jul. 24, 1995.

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