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가속수명시험법을 이용한 쇼트피닝가공 금속의 피로수명예측
강진석(Jin-Shik Kang),남지헌(Ji-Hun Nam),이재헌(Jae-Heon Lee),정성균(Seong-Kyun Cheong) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.11
Shot peening process is used as one of the various kinds of techniques to improve the fatigue properties. However, to obtain fatigue properties of metal materials, many efforts and time are needed. Because the fatigue life of shot peened metals increases highly. In this paper, fatigue properties of shot peened Al 7075-T6 are estimated using the fundamental of accelerated life test to reduce the experimental. Experimental results show that the estimated life data almost agree with actual rotary bending fatigue test data within 7% error.