Patent ID: 7921555
Filing Date: 2011-04-12
Classification: B22C,B22D,F02F,Y10T

Abstract:
1. Method for the production of a piston ( 1 ) for an internal combustion engine, comprising the following method steps: producing a salt core in the shape of a ring-shaped cooling channel ( providing a casting mold for the piston ( laying and attaching the salt core into the casting mold, in such a manner that the formed-on parts for the pin boss cooling channels ( pushing in the slide intended for the pin bores ( filling the casting mold with the piston material present in liquid form, thereby surrounding the salt core, inserting a slide for forming the piston interior chamber ( removing the piston blank from the casting mold, drilling at least one oil feed channel ( washing the salt core out of the cooling channel ( finishing the piston (