Manufacture of solid metal spherical articles

Details Manufacture of solid metal spherical articles Manufacture of solid metal spherical articles

1974-10-18

1976-06-29

Simpson, Othell M.

Metal working

Bias cutting of tubular stock

291484B, B21K 2106

Patent

active

039655490

ABSTRACT:
Method and apparatus for making lead shot by barrel tumbling a charge of non-spherical preforms in a liquid coolant, involving the evaporation and condensing of the coolant while the preforms are progressively deformed to spherical shape.

REFERENCES:
patent: 2313876 (1943-03-01), Jelinek
patent: 2758360 (1956-08-01), Shetler
patent: 2807020 (1957-09-01), Schell
patent: 2946115 (1960-07-01), Firm
patent: 3204320 (1965-09-01), Ekstein et al.

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