Method for producing a cooled, lost-wax cast part

摘要

The invention relates to a method for producing a cooled cast part (1) for a thermal turbo machine by using a known casting process. Between a wax model (10) of the cast part (1) and a ceramic core (6), a wax seal (8) is applied by hand above a step (7), only on an additional shoulder (9). The material that is created during the casting process at this point by the shoulder (9) and the wax seal (8) can be ground off without causing rough areas on the step (7) to form. This simplifies the welding or soldering of a cooling plate to the step (7).