Proceedings of the Korean Society of Machine Tool Engineers Conference (한국공작기계학회:학술대회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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A Study on the Fatigue Characteristics of Al 7075-T6 by Shot Peening

쇼트피닝 가공에 의한 Al 7075-T6의 피로특성에 관한 연구

  • 김태형 (서울산업대학교 대학원) ;
  • 정성균 (서울산업대학교 기계공학과) ;
  • 신용승 (서울산업대학교 기계공학과)
  • Published : 2002.10.01
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Abstract

The shot peening process is most often used to improve fatigue properties of metal parts. In order to achieve optimum, repeatable and reliable fatigue enhancement from the shot peening process, the important shot peening parameters must be controlled. In this paper, the optimum shot peening condition is investigated. Rotate bending fatigue test was accomplished to investigate the effects of shot peening on the fatigue strength. Experimental results show that the fatigue strength was tremendously increased by optimum peening condition. But the fatigue strength was decreased by under peening or over peening.

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