发明名称 |
FORGING DEVICE FOR THE PRODUCTION OF A PISTON BLANK, AND METHOD FOR THE PRODUCTION OF THE PISTON BLANK BY MEANS OF SAID FORGING DEVICE |
摘要 |
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. |
申请公布号 |
EP2763805(B1) |
申请公布日期 |
2016.03.02 |
申请号 |
EP20120791078 |
申请日期 |
2012.10.05 |
申请人 |
MAHLE INTERNATIONAL GMBH |
发明人 |
GRUNERT, ROLAND;FRIEDRICH, JÜRGEN;SENG, TIMO;JANISCH, WOLFGANG |
分类号 |
B21K1/18;B21J5/02;B21J13/02 |
主分类号 |
B21K1/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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