HOT ISOSTATIC PRESSING TO HEAL WELD CRACKS

摘要

A method of manufacturing a shrouded turbine blade is disclosed. In an embodiment, the method comprises casting a shrouded turbine blade including a shrouding. The shrouding includes an abutment face. The method includes welding a coating composed of a different material than the shrouded turbine blade onto the abutment face. The method includes applying hot isostatic pressing to the abutment face after welding the coating. The hot isostatic pressing is sufficient to heal internal defects in the abutment face. The method includes machining the shrouded turbine blade after applying hot isostatic pressing.

主权项

1. A method of manufacturing a shrouded turbine blade comprising:
casting a shrouded turbine blade including a shrouding, the shrouding including an abutment face; welding a coating composed of a different material than a base material of the shrouded turbine blade onto the abutment face; applying hot isostatic pressing to the shrouded turbine blade after welding the coating onto the abutment face, wherein the hot isostatic pressing is sufficient to heal internal defects in the abutment face; and machining the shrouded turbine blade after applying hot isostatic pressing to the abutment face.