Metal deforming – By use of closed-die and coacting work-forcer – Forcing work into or within closed die; e.g. – forging
Patent
1982-06-14
1985-02-05
Gilden, Leon
Metal deforming
By use of closed-die and coacting work-forcer
Forcing work into or within closed die; e.g., forging
72477, 72421, B21D 2200
Patent
active
044971940
ABSTRACT:
An apparatus is provided for performing multiple operations on a conventional open-die forge press, and includes a rotatable top punch assembly and stationary bottom die assembly. The top punch assembly includes a mounting fixture secured to the press crosshead, a holder plate rotatably mounted on the fixture, a plurality of punches extending downwardly from the holder plate, and motor means for indexing the punches sequentially into forging position over the bottom die assembly. A method is also provided for making valve pots, including upsetting a heated metal block in a split die and punching a hole through the block, the improvement in which during the upsetting step a vertically reciprocable member is extended so as to close a bottom opening in the split die, in order that the split die will function as a closed die, and during the punching step the reciprocable member is retracted so as to allow a punch-core to fall through said opening. This permits faster production rates since less handling of the dies is required.
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Advertising Brochure of Beaumont Well Works Company Houston, Tex.-pp. 12 and 13.
Martin Wayne A.
Modic Justin G.
Gilden Leon
Riesmeyer, III William F.
United States Steel Corporation
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