Processing of Ni-based aero engine components with repetitively Q-switched Nd:YAG lasers
- 23 September 1996
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- p. 145-157
- https://doi.org/10.1117/12.251172
Abstract
Aircraft engine industry uses free running high power Nd:YAG lasers for drilling cooling holes into nickel base alloy turbine components. A cw-pumped, Q-switched, high beam quality laser system with 400W laser power is presented. The laser is used to trepan drilling of 1.6mm. Hastelloy X sheets and ceramic coated combustion chamber tubes of the same metal. Cylindrical shape, uniformity, and reproducibility are achieved with a trepan-like drilling setup. The heat load of the workpiece as well as the process time is considerably decreased by employing high-repetition Q-switched lasers.Keywords
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