Production of a light metal cast part comprises using a bushing having a structured outer casing surface, and applying a low pressure to the melt after a prescribed time after filling the casting device before solidifying the melt

摘要

Production of a light metal cast part comprises using a bushing (1) having a structured outer casing surface; and applying a low pressure to the melt (2) after a prescribed time after filling the casting device before solidifying the melt. An Independent claim is also included for a bushing for the casting process. Preferred Features: 10-100 mbar pressure is applied to the melt for 1-3 minutes. The bushing has a temperature of 300 deg C during casting.