Clean atmosphere heat treat for coated turbine components

Details Clean atmosphere heat treat for coated turbine components Clean atmosphere heat treat for coated turbine components

2005-12-07

2008-09-30

Wilson, Gregory A (Department: 3749)

Heating

Work chamber having heating means

Work chamber having gaseous material supply or removal...

C432S159000

Reexamination Certificate

active

07429174

ABSTRACT:
A method for heat treating at least one workpiece, such as a coated turbine engine component, is provided. The method comprises the steps of cleaning a furnace to be used during the heat treating method, which cleaning method comprising injecting a gas at a workpiece center location and applying heat, and diffusion heat treating the at least one workpiece in a gas atmosphere with the gas being injected at the workpiece center location. After the diffusion heat treatment step, the coated workpiece(s) may be subjected to a surface finishing operation such as a peening operation.

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