Method for the production of a piston
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United States of America Patent
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Aug 18, 2015
Grant Date -
Nov 8, 2012
app pub date -
Sep 23, 2011
filing date -
May 5, 2011
priority date (Note) -
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Abstract
A piston may include a piston upper part and a piston lower part. The piston upper part may be welded via a contact surface with the piston lower part forming a cooling duct therebetween. The cooling duct may define an inlet opening and an outlet opening extending from the piston lower part in the cooling duct. A welding bead may be formed within the cooling duct at each of the inlet opening and the outlet opening.
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