Making a seamless, spherical case

Details Making a seamless, spherical case Making a seamless, spherical case

1979-11-26

1982-01-26

Meister, James M.

Metal deforming

By use of tool acting during relative rotation between tool...

With modification or control of temperature of work, tool or...

72105, B21B 2706

Patent

active

043122060

ABSTRACT:
A tubular blank is held in a bed, heated on one end, which is then rolled into a semisphere with an integral nipple; an adjacent portion of the blank is subsequently heated and stretch-formed by rolling to obtain a spherical continuation of the semisphere, being continued in a cylindrical portion, preferably with a stepped-down section. The remainder of the blank is then cut off.

REFERENCES:
patent: 3740986 (1973-06-01), Schmid

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