METHOD FOR PRODUCING A PISTON FOR A COMBUSTION ENGINE

摘要

A method for producing a piston with a combustion bowl may include fastening an annular fibrous preform for reinforcing a periphery of the combustion bowl in a casting mold for the piston coaxially with a piston axis in a plane of a piston head. The method may also include introducing a metal melt into the casting mold to produce a piston blank, generating a pressure difference between the metal melt and the fibrous preform for infiltration of the metal melt into the fibrous preform, and machining the piston blank. The fibrous preform may be held in the casting mold by suction tubes in which a negative pressure may prevail such that the metal melt may be sucked into and infiltrate the fibrous preform. At least one section of at least one of the suction tubes may accelerate solidification of the metal melt passing into the suction tube.