FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Femtosecond Laser Pulses for Drilling the Shaped Micro-Hole of Turbine Blades |
JIA Hai-Ni1**, YANG Xiao-Jun1, ZHAO Wei1, ZHAO Hua-Long1, DU Xu2, YANG Yong1 |
1Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119 2National Time Service Center, Chinese Academy of Sciences, Xi'an 710600
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Cite this article: |
JIA Hai-Ni, YANG Xiao-Jun, ZHAO Wei et al 2013 Chin. Phys. Lett. 30 044202 |
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Abstract We design a set of processing devices to drill the shaped holes of turbine blades by using a femtosecond laser which outputs 1064 nm 5 W pulses at 100 kHz, investigate the mechanism of the femtosecond laser interaction with metals, and demonstrate that ultrafast laser drilling has distinct strong points against electric spark and longer laser pulse processing. The advantages related to no recast layer, no thermal effect, no micro crack, high precision, and high processing efficiency are carried out.
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Received: 09 December 2012
Published: 28 April 2013
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PACS: |
42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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42.62.-b
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(Laser applications)
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Abstract
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