method for producing an aluminum piston for an internal combustion engine and aluminum piston for an internal combustion engine

摘要

patent summary: "method for producing an aluminum piston". The present invention relates to a method for producing an aluminum piston (1) for an internal combustion engine, said sine aluminum piston subjected to welding treatment at least in the area of a bowl rim (4) and / or in the area of a bowl base (3) to introduce at least one additional element into an aluminum piston base material (1) and to generate intermetallic phases (6). It is essential to the invention that at least one of the following additional elements be introduced at the specified concentration by the welding method: 1 to 7% wt of ni, 1 to 15% wt of cu and 0.5-5%. p of fe. Especially thin and advantageously formed intermetallic phases (6) can thus be produced whose intermetallic phases contribute to the increase in the thermomechanical resistance of the aluminum piston (1).