Metal deforming – By use of closed-die and coacting work-forcer – Cup or shell drawing
Patent
1984-10-10
1986-07-15
Gilden, Leon
Metal deforming
By use of closed-die and coacting work-forcer
Cup or shell drawing
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
Gilden Leon
Sodastream Limited
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