REPAIR TOOL FOR A TURBINE ROTOR WHEEL, AND A TURBINE ROTOR WHEEL

摘要

A process of preparing a turbine rotor wheel, a repair tool for machining a turbine rotor wheel, and a turbine rotor wheel are disclosed. The process includes providing the turbine rotor wheel, the turbine rotor wheel having a dovetail slot, a cooling slot, and a dovetail acute corner formed by the dovetail slot and the cooling slot and removing a stress region from the dovetail acute corner. The repair tool permits removal of strained material while also reducing the operating stress of the feature. The turbine rotor wheel includes a machined portion resulting in lower stress for the turbine rotor wheel.

主权项

1. A repair tool for machining a turbine rotor wheel, the tool comprising:
a securing mechanism for engaging and securing the tool to a turbine rotor wheel having a dovetail acute corner formed by a dovetail slot and a cooling slot; a guide mechanism for directing removal along a predetermined angle; and a stop mechanism for limiting removal to a predetermined depth; wherein the guide mechanism and the stop mechanism permit removal of a stress region from the dovetail acute corner of the turbine rotor wheel.