Ironing dies

Details Ironing dies Ironing dies

2005-03-01

2005-03-01

Larson, Lowell A. (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

C072S466800

Reexamination Certificate

active

06860134

ABSTRACT:
In press forming including ironing, an elastically deformable material is used for a part of ironing die contacting to the work material under a higher pressure than designed, for taking the formed product out from the die easily in a case that the ironing die and the formed product are very close in size to each other, and thereby improving the efficiency of production.

REFERENCES:
patent: 2357123 (1944-08-01), Maxwell
patent: 3602030 (1971-08-01), Noda et al.
patent: 3715904 (1973-02-01), Lesko
patent: 3724247 (1973-04-01), Page
patent: 3945231 (1976-03-01), Imazu et al.
patent: 62-234623 (1987-10-01), None
patent: 63-248521 (1988-10-01), None
patent: 02-046932 (1990-02-01), None
patent: 2-295610 (1990-12-01), None

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