• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2021, Vol. 57 ›› Issue (16): 293-305.doi: 10.3901/JME.2021.16.293

Previous Articles     Next Articles

Research Progress and Prospect of Laser Shock Peening Technology in Aero-engine Components

NIE Xiangfan1,2, LI Yinghong1, HE Weifeng1, LUO Sihai1, ZHOU Liucheng1   

  1. 1. Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi'an 710038;
    2. School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237
  • Received:2020-09-01 Revised:2021-01-24 Online:2021-08-20 Published:2021-11-16

Abstract: Because of hostile service environment and complicated working loads, aero-engine components are apt to high-cycle fatigue fracture, which seriously affects security and reliability of aero-engine. Laser shock peening, LSP, is a novel surface plastic-strengthening technology. High-cycle fatigue performance can be improved effectively under the action of compressive residual stress and microstructural modification. LSP has been widely applied in the batch production and maintenance of aero-engine components. Research status, application situation and problems to be resolved of laser shock peening on fan/compressor blade, turbine blade, turbine disk, cartridge receiver, hydraulic actuator, pipe, gear and so on were discussed deeply. The development tendency of laser shock peening research on aero-engine components in recent years was analyzed and concluded. The future work on equipment, technique, mechanism and application of laser shock peening on aero-engine components was taken an outlook. In future, hope that the large-scale industrial application of laser shock peening on aero-engine components could be realized under the synergistic action of the whole industry and the whole technology chain.

Key words: laser shock peening, aero-engine, anti-fatigue, research progress, research outlook

CLC Number: