Method of forging a workpiece
AssigneeTRW Inc.
InventorsBlake L. Ferguson, Donald J. Moracz
Life of this patent
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Abstract
A metal workpiece, such as a gear blank, is forged in a press. The workpiece is first heated and then placed in a working chamber above the press. Force is applied against opposite sides of the workpiece to press the metal of the workpiece outwardly against a sidewall formed by a ring die and inwardly against a side surface of a removable center section. After the workpiece has been shaped, the workpiece and the center section are removed from the working chamber of the press with the center section firmly gripped by the workpiece. The workpiece is then allowed to cool and the center section is separated from the workpiece.
Claims5
A method of forging a metal workpiece in a press having a working chamber partially defined by a side wall which extends around a removable center section which is hollow, said method comprising the steps of placing the workpiece in the chamber, telescoping the center section over a support member, thereafter, applying force against opposite sides of the workpiece to press the metal of the workpiece against the side wall of the chamber and against the outer side surface of the center section, supporting the center section with the support member during the application of force against opposite sides of the workpiece, removing the workpiece and center section from the chamber with the workpiece gripping the center section, and, thereafter, separating the center section from the workpiece.
Dependencies are inferred from the claim text.