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US 4,222,260 AGranted
Warm forging of connecting rod caps
AssigneeWSP Industries Corporation
InventorRichard P. McDermott
Life of this patent
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Abstract
Rod end caps and the method of forming same comprising the steps of using a flashless, closed die set, a predetermined shape and volume billet, warm forging temperatures, and a unique ejector. The ejector pin defines part of the mold cavity when retracted, ejects the finished parts when extended, and locates new billets when in an intermediate position.
Claims13
In a method of warm forging complex parts in a closed die, a use of an ejector pin comprising the sequential steps of:
- 1. using said ejector pin when at a predetermined intermediate position between fully retracted and fully extended to act as a locating means for a new billet dropped into the female die;
- 2. using said ejector pin when at its fully retracted position to act as part of the mold cavity to define a portion of the part to be forged therein;
- and
- 3. using said ejector pin when at a fully extended position to act conventionally to eject a finished part.
1 more element
Dependencies are inferred from the claim text.