A Study of Femtosecond Laser Machining Technology Applied in Air-Film Holes on Turbine Blades

Hua Long Zhao; Wen Yu Zhu; Xiao Jun Yang; Shi Fang Gao; Hong Yan Zhao

doi:10.4028/www.scientific.net/AMM.268-270.487

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 268-270A Study of Femtosecond Laser Machining Technology...

A Study of Femtosecond Laser Machining Technology Applied in Air-Film Holes on Turbine Blades

Abstract:

Femtosecond laser with the features of ultrashort pulse duration and ultrahigh peak power can achieve “cold” machining. The recast layer and micro-cracks of the hole wall can be ruduced effectively by applying femtosecond laser in processing air-film holes on turbine blades, and the machining accuracy and consistency of the hole shape will increase. In this paper, the high-speed rotating femtosecond laser beam is adopted in several currently used turbine blade materials for air-film holes machining, and high quality air-film holes without hole wall recast layer and micro-cracks are processed through a large number of experiments to optimize machining technology and technological parameter.

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Periodical:

Applied Mechanics and Materials (Volumes 268-270)

Pages:

487-491

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.268-270.487

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Online since:

December 2012

Authors:

Hua Long Zhao, Wen Yu Zhu, Xiao Jun Yang, Shi Fang Gao, Hong Yan Zhao

Keywords:

Air-Film Hole, Femtosecond Laser, Micro-Crack, Recast Layer

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