Piston for an internal combustion engine comprises a base, a ring, a piston shaft, and a recess for a piston bolt

摘要

Piston (1) comprises a base (2), a ring (7), a piston shaft (8), and a recess (4) for a piston bolt (5). The piston base and the recess are made from an alloy based on the system TiAl, especially based on the intermetallic phase gamma-TiAl, and the ring and the piston shaft are made from a different material. The base and the ring are connected by friction welding.