Patent ID: 9163322
Filing Date: 2015-10-20
Classification: B23H,C25F

Abstract:
1. A method for refurbishing components, comprising: (a) accessing a plurality of rotatable components attached to a turbine assembly, the turbine assembly being a portion of a turbomachine, each of the plurality of rotatable components comprising a rotatable disc with rotor blades extending from the disc; (b) providing a predetermined volume of a buffered electrolytic solution in an electro-polishing tank; (c) coupling the plurality of rotatable components to a power supply; (d) immersing an immersion portion of at least one of the rotor blades in the buffered electrolytic solution; (e) passing an electrical energy through the immersion portion of at least one of the rotor blades while the immersion portion is immersed in the buffered electrolytic solution, wherein an electrical flux to the immersion portion electro-polishes the immersion portion; (f) separating the immersion portion from the buffered electrolytic solution; and (g) applying a corrosion inhibitor to the plurality of rotor blades.