Casting process and mould

Abstract

A process for casting a piston for an internal combustion engine including tilting, the mould portions which define the casting cavity through at least 45 degrees about a horizontal axis after filling and before solidification in such a manner that the axis of rotation of the component moves in the direction of the vertical. A casting mould for casting a piston for an internal combustion engine includes mould portions which define the casting cavity that are tiltable through at least 45 degrees about a horizontal axis after filling and before solidification in such a manner that the axis of rotation of the piston moves in the direction of the vertical.

1 . method for casting a piston for an internal combustion engine, in which the tool portions defining the casting cavity are tilted after filling and before solidification by at least 45 degrees about a horizontal axis such that the axis of rotation of the component moves in the direction of the vertical position. 
     
     
         2 . The method according to  claim 1 , wherein a tilting angle can be set. 
     
     
         3 . The method according to  claim 1  wherein the axis of rotation of the piston is aligned so as to be substantially horizontal during filling. 
     
     
         4 . The method according to  claim 1 , wherein the axis of rotation of the piston is aligned so as to be substantially vertical during solidification. 
     
     
         5 . The method according to  claim 1 , wherein the casting material is filled into a lateral region of the piston. 
     
     
         6 . The method according to  claim 1 , wherein after the tilting of the tool portions a feeder is disposed in an upper region of the piston. 
     
     
         7 . The method according to  claim 1 , wherein at least one insert, such as, for example, a core for a cooling channel and/or a ring carrier, is cast into the piston. 
     
     
         8 . A casting tool for casting a piston for an internal combustion engine, in which the tool portions defining the casting cavity are tiltable after filling and before solidification by at least 45 degrees about a horizontal axis such that the axis of rotation of the piston moves in the direction of the vertical position. 
     
     
         9 . The casting tool according to  claim 8 , wherein a tilting angle can be set. 
     
     
         10 . The casting tool according to  claim 8  wherein a feeder is disposed in a region lying along the axis of rotation of the piston at the end of the piston. 
     
     
         11 . The casting tool according to  claim 8 , wherein the tool portions defining the casting cavity can be tilted such that after the tilting a feeder is disposed in an upper region. 
     
     
         12 . The casting tool according to  claim 8 , wherein the mold cavity has at least one recess which, when the axis of rotation of the piston to be cast is aligned so as to be horizontal, is located in an upper region, preferably at one of the highest points.