Manufacture of metal containers

Metal deforming – By use of closed-die and coacting work-forcer – Cup or shell drawing

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Details

72348, B21D 2200

Patent

active

045998868

ABSTRACT:
A method of manufacturing a high pressure gas cylinder by deep drawing and ironing a blank of high strength steel, the periphery of the blank being ground prior to cupping.

REFERENCES:
patent: 3855862 (1974-12-01), Moller
patent: 4175415 (1979-11-01), Knorring
patent: 4493201 (1985-01-01), Schmidt

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