Metal deforming – By use of closed-die and coacting work-forcer – Forcing work into or within closed die; e.g. – forging
Patent
1982-02-25
1984-08-07
Crane, Daniel C.
Metal deforming
By use of closed-die and coacting work-forcer
Forcing work into or within closed die; e.g., forging
72356, 72357, 72358, 72344, 291495B, 403122, B21D 2200
Patent
active
044635907
ABSTRACT:
A blank section of a steel rod is heated and then successively impacted between hot forging dies to form a preform or rough forging ball joint socket having a tubular socket portion and a laterally projecting mounting flange portion. The rough forging is then inserted into a die set assembly including an upper die member surrounding a relatively movable punch and a lower die member surrounding a relatively movable ejector member. The upper die member is supported by a piston of a hydraulic cylinder which moves with the punch, and the upper and lower die members cooperate to produce the desired precision external configuration of the socket and flange portions. After the die members are closed, the punch cooperates with the ejector member to form the desired precision internal configuration of the tubular socket portion.
REFERENCES:
patent: 2057669 (1936-10-01), Brauchler
patent: 2627652 (1953-02-01), Schweller
patent: 3280613 (1966-10-01), Schrom
patent: 3768295 (1973-10-01), Cudzik
patent: 3918288 (1975-11-01), Verduzco
patent: 4087188 (1978-05-01), McEowen
patent: 4299112 (1981-11-01), Kondo et al.
Crane Daniel C.
Jones David B.
The Harris-Thomas Drop Forge Company
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