Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate
2008-01-08
2008-01-08
Zimmerman, John J. (Department: 1775)
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
C428S636000, C428S676000, C428S926000, C427S405000, C427S597000, C420S437000, C420S440000, C420S444000, C420S445000, C420S456000, C420S460000, C420S588000, C416S24100B
Reexamination Certificate
active
10792003
ABSTRACT:
There is provided a method for depositing a modified MCrAlY coating on a turbine blade tip. The method utilizes laser deposition techniques to provide a metallurgical bond between a turbine blade substrate, such as a superalloy substrate, and the modified MCrAlY composition. Further the modified MCrAlY coating has sufficient thickness such that a post-welding grinding operation to size the turbine blade to a desired dimension will not remove the modified MCrAlY coating entirely. The modified MCrAlY coating thus remains on the finished turbine blade tip after grinding.
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PCT International Search Report PCT/US2005/006833, filed Apr. 3, 2006.
Hehmann William F.
Hu Yiping
Austin Aaron
Honeywell International , Inc.
Ingrassia Fisher & Lorenz
Zimmerman John J.
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