Application of Laser Shock Processing to Improving the Fatigue Performance of Compressor Blade
The vibration strength under allowable value leads to the failure of compressor blade of certain aeroengine. In order to solve the problem, laser shock processing on blade was studied. First, the processed part of blade as well as the laser shock processing (LSP) parameters was established. Second, the influence of LSP and tumbling to the vibrate fatigue capability of blades were researched according to the application of the project. Third, the strengthening mechanism of LSP on improving the fatigue performance of the blade was studied. The results show that, LSP is consistently dependable and can prolong the vibration fatigue life of the blade efficiently. LSP can be placed after tumbling or directly replace it during the manufacturing of blade. The grain refinement, higher hardness and compressive residual stress are the three main reasons that enhance the fatigue capability of blade.
Laser shock processing Tumbling Compressor blade Vibration fatigue life
Qipeng Li Yinghong Li Weifeng He Wei Li Yuqin Li
Engineering Institute, Air Force Engineering University, Xi’an 710038, China
国际会议
广州
英文
184-189
2010-11-05（万方平台首次上网日期，不代表论文的发表时间）