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http://dx.doi.org/10.5139/JKSAS.2003.31.7.063

A Study on the Optimum Shot Peening Condition for Al7075-T6  

Jeong,Seong-Gyun (서울산업대학교 기계공학과)
Kim,Tae-Hyeong (서울산업대학교 대학원)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.31, no.7, 2003 , pp. 63-68 More about this Journal
Abstract
Shot peening process is most often used to improve the fatigue properties of metal parts, In order to achieve an optimum, repeatable, and reliable fatigue enhancement from the shot peening process, the important shot peening parameters must be optimized, In this paper, the optimum peening intensity(Almen intensity) condition is investigated by experiment. Rotary bending fatigue test has been adopted to investigate the effects of optimum peening on the fatigue characteristics, Experimental results show that the fatigue strength and fatigue life has been tremendously increased by optimum-peening treatment. However, the fatigue strength and fatigue life has been decreased by under or over peening.
Keywords
Optimum peening; Almen intensity; Fatigue strength; Fatigue life; Rotary bending fatigue test;
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