Metal deforming – With cleaning – descaling – or lubrication of work or product – Lubricating
Patent
1987-12-15
1989-06-13
Crane, Daniel C.
Metal deforming
With cleaning, descaling, or lubrication of work or product
Lubricating
72318, 72342, 72356, 72357, B21J 300, B21J 508
Patent
active
048380628
ABSTRACT:
Process and apparatus for upset forging a long stand of solid malleable metal bar stock in a single pass is capable of gathering a large volume of the bar stock into a complex shaped element. The end of the bar stock is selectively heated to provide an intermediate section thereof to a desired upper forging temperature and an end section thereof at a desired lower forging temperature. The heated bar stock is positioned in an upset forging die cavity. A forging punch enters the cavity to upset the long stand to fill the cavity firstly with the upset intermediate section and then the remainder of the cavity with the end section which is at a lower forging temperature. A friction reducing material is provided in the cavity to provide for sliding of the end section along the cavity while the end seciton upsets and gathers the intermediate section of the bar in the major portion of the upset cavity section.
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"Forging Principle No. 3", The Forger, Article No. 24, distributed by The Hill Acme Company of Cleveland, Ohio.
Crane Daniel C.
Stelco Inc.
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