Effect of Dual-Sided Laser Peening Modes on Residual Stress Distribution of Aero-engine Titanium Blades

Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

For thin-walled structure components, dual-sided laser peening modes greatly affect surface integrity of the components. In this study, simplified compressor blade made of TC17 titanium alloy was chosen as the studied object. The effect of simultaneous and non-simultaneous dual-sided laser peening on residual stress distributions along surface and depth were studied through numerical simulation. The influencing mechanisms of dual-sided laser peening modes on residual stress distribution along depth were investigated by means of wave propagation theory. This study is instructive in parameter choosing for laser peening of thin-walled structure components based on better understanding the effect of dual-sided laser peening modes on residual stress distribution.

Keywords

Titanium blades Simultaneous dual-sided laser peening Non-simultaneous dual-sided laser peening Residual stress distribution Wave propagation 

Notes

Acknowledgements

This study was financially supported by the National Natural Science Foundation of China (Grant No. 51471155) and Aviation Innovation Foundation of China (Grant No. 2014E62149R). The authors appreciate Dr. Wang (Qiang Wang) and Dr. Luo (Xuekun Luo) for supporting information about the sample geometry and LSP parameters.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.State Key Laboratory of Tribology, Department of Mechanical EngineeringTsinghua UniversityBeijingChina
  2. 2.School of AerospaceTsinghua UniversityBeijingChina
  3. 3.AECC Beijing Institute of Aeronautical MaterialsBeijingChina

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