Method for producing a piston for an internal combustion engine and the thus produced piston
AssigneeFederal-Mogul Nurnberg GmbH
InventorsSimon Reichstein, Lothar Hofmann, Peter Konrad
Life of this patent
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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.
Claims7
Method for the production of a piston for an internal combustion engine with at least one cooling channel and at least one armored piston ring groove with the following steps performed in order:
- producing a piston blank,
- machining a groove into the piston blank comprising the cooling channel and an outer ring,
- filling the cooling channel with a removable material,
- filling the outer ring with a reinforcing material,
- and removing the removable material, and
- and the method further comprising finishing the piston before or after removing the removable material.
Dependencies are inferred from the claim text.