Effect of Shot Peen Forming with Large Balls on Fatigue Resistance of 2024-T351 Aluminum Alloy
2013 ◽
Vol 816-817
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pp. 266-270
Keyword(s):
Shot peen forming different from shot peening is a metal forming process widely used in aeronautical industry. Different types of tension-tension fatigue specimens after peen forming were tested. The results show that the fatigue life of specimens peen formed with large balls except edges is 35.4% higher than that of unpeened specimens, while the life of the specimens with whole surface peen formed is 23.2% lower than that of the unpeened specimens. In addition, shot peening specimens which have been peen formed as a surface strengthening way can significantly improve the fatigue resistance. Moreover, when the specimen is peen formed except edges, the position of crack source is from the indentation region to subsurface.
2010 ◽
Vol 44-47
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pp. 2837-2841
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2013 ◽
Vol 773-774
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pp. 115-118
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2000 ◽
Vol 123
(4)
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pp. 398-402
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2015 ◽
Vol 651-653
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pp. 1153-1158
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2006 ◽
Vol 34
(3)
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pp. 229-241
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