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A Method for Improving Fatigue Life of Compressor Blades by Laser Shock Peening and Shot Peening

  • Beihang University
  • Aero Engine Corporation of China

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Taking the TC6 blades as the research object, three kinds of surface strengthening methods were used to improve the surface integrity of the blades, including shot peening (SP), laser shock peening (LSP) and laser shock peening and shot peening (LSP+SP), which fully considered the advantages of LSP and SP. The surface integrity and fatigue life of the blades with different surface states were tested. LSP+SP blades produced the most significant residual compressive stress on the blades surface and had the best fatigue life improvement effect, with the fatigue life increased by 231.8% compared with the as-received blades. After polishing the blades, the fatigue life of LSP+SP blades were further enhanced, reaching 269.9%. The results of sensitivity analysis of surface integrity parameters showed that surface residual stress had the most significant effects on blades fatigue life, which confirmed the superiority of LSP+SP and polishing for improving blades fatigue life.

Original languageEnglish
Title of host publicationMoving Integrated Product Development to Service Clouds in the Global Economy - Proceedings of the 21st ISPE Inc. International Conference on Concurrent Engineering, CE 2014
EditorsXuelin Lei
PublisherIOS Press BV
Pages236-246
Number of pages11
ISBN (Electronic)9781643686479
DOIs
StatePublished - 3 Mar 2026
Event16th International Conference of Mechanical and Aerospace Engineering, ICMAE 2025 - Rome, Italy
Duration: 15 Jul 202518 Jul 2025

Publication series

NameAdvances in Transdisciplinary Engineering
Volume87
ISSN (Print)2352-751X
ISSN (Electronic)2352-7528

Conference

Conference16th International Conference of Mechanical and Aerospace Engineering, ICMAE 2025
Country/TerritoryItaly
CityRome
Period15/07/2518/07/25

Keywords

  • Compressor blade
  • fatigue life
  • laser shock peening
  • shot peening
  • surface integrity

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