Metal deforming – By use of closed-die and coacting work-forcer – Forcing work into or within closed die; e.g. – forging
Patent
1998-04-24
2000-03-07
Scherbel, David A.
Metal deforming
By use of closed-die and coacting work-forcer
Forcing work into or within closed die; e.g., forging
723546, B21J 1302
Patent
active
060325089
ABSTRACT:
A female die and a punch for forming relatively complex parts from axi-symmetrical workpieces, and the method of using the female die and punch to form the parts from the workpieces are disclosed. The female die and punch are used in a forging apparatus to near net warm forge parts that include curved surfaces with at least one protrusion offset from the longitudinal central axis of the part, or other complex part configuration. The female die includes curved inner surfaces that form the curved surfaces on the part and a recess to form the protrusion. The punch includes a forming surface at the bottom that is shaped to move material of the workpiece into regions of the cavity that form the protrusion. The volume of the part is substantially equal to the volume of the workpiece.
REFERENCES:
patent: 2198986 (1940-04-01), Bailey
patent: 4055975 (1977-11-01), Serfozo et al.
patent: 4177665 (1979-12-01), Schurmann
patent: 4426872 (1984-01-01), Gatny
patent: 4967584 (1990-11-01), Sato et al.
patent: 5493888 (1996-02-01), Merkle et al.
Ashworth Martin J.
McGinty Paul P. G.
Webster James
MSP Industries Corporation
Ojini Anthony
Scherbel David A.
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