Forging device for the production of a piston blank, and method for the production of the piston blank by means of said forging device

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United States of America Patent

PATENT NO 9782823
APP PUB NO 20150020566A1
SERIAL NO

14349758

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Abstract

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A forging device for producing a piston blank has a forging mold that has an essentially cylindrical cavity matching the radial outer surface of the piston blank, a forging base delimiting the cavity, and a central die consisting of a mandrel that has a conically tapering extension which is mounted on the mandrel and the shape of which matches the inner surface of the piston blank. In order to form the radially outer surfaces of the piston slipper walls and a peripheral cooling pocket located radially outside the slipper walls in the piston head, the forging device has two lateral jaws which are mounted in the forging device so as to be movable at an angle to the longitudinal axis of the forging device.

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Patent Owner(s)

Patent OwnerAddress
MAHLE INTERNATIONAL GMBHPRAGSTR 26-46 70376 STUTTGART 70376

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Friedrich, Juergen Attendorn, DE 10 228
Grunert, Roland Eberdingen, DE 1 3
Janisch, Wolfgang Stuttgart, DE 8 33
Seng, Timo Rottweil, DE 1 3
Wenzel, Armin Rottweil, DE 2 4

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