Method for producing a piston for an internal combustion engine and the thus produced piston
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United States of America Patent
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Mar 20, 2012
Grant Date -
Oct 16, 2008
app pub date -
Aug 9, 2006
filing date -
Sep 30, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a method for producing an internal combustion engine piston which is provided with at least one cooling channel (12) and at least one reinforced piston ring groove (14) consisting in producing a piston blank (1), in forming a groove (10) provided with a cooling channel (12) and an external ring (11) in said piston blank (1), in filling the cooling channel (12) with are movable material (2), in filling the external ring with a reinforcing material (3) in removing the removable material (2) and in finish-machining the piston. A piston made of aluminum alloy and produced according to the inventive method is also disclosed.
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