LASER PEENING OF 7050 ALUMINUM ALLOY WITH FASTENER HOLES
The fatigue properties of laser peened(LP) 7050 aluminum alloy specimens with fastener holes were investigated in this paper. At first, the surface profile and residual stress induced in the shock affected zone was characterized. Then, the fatigue specimens with notch were treated by LP, and the fatigue life of LPtreated specimens were measured and compared with base material without LP. The results indicated that LP improved the fatigue life of all specimens tested. In average, the fatigue life of specimens treated by LP before hole-drilling was 173％ longer than that of untreated samples and had better effects than than those specimens treated by LP after hole-drilling.
Zou Shikun Ziwen Cao Shuili Gong
Key Laboratory for High Energy Beam Processing Technology, Beijing Aeronautical Manufacturing Technology Research Institute, Beijing, China
国际会议
第三届太平洋国际激光与光学应用会议(PICALO 2008)
北京
英文
448-451
2008-04-16（万方平台首次上网日期，不代表论文的发表时间）