Metal deforming – By use of closed-die and coacting work-forcer – Cup or shell drawing
Patent
1974-09-30
1976-01-06
Larson, Lowell A.
Metal deforming
By use of closed-die and coacting work-forcer
Cup or shell drawing
72467, B21D 2220
Patent
active
039303969
ABSTRACT:
The disclosed ironing ring improvement increases ironing life by use of a conical surface of intermediate taper between the conical lead-in surface and the cylindrical land surface of the ironing ring, particularly for purposes of making drawn and ironed metal can bodies at high speeds.
REFERENCES:
patent: 3577753 (1971-05-01), Shah
patent: 3685337 (1972-08-01), Avitzur
patent: 3774426 (1973-11-01), Jezik
Larson Lowell A.
Reynolds Metals Company
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