Proceedings of the KWS Conference (대한용접접합학회:학술대회논문집)
- 2004.05a
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- Pages.240-242
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- 2004
Effect of post treatment on the fatigue strength of welded joint
용접부 피로강도에 미치는 후처리의 영향
Abstract
Effect of post treatment on the fatigue strength of a box weldment was investigated in order to improve fatigue life of the weldment. The post treatment applied were the smooth grinding of weld bead, weld toe grinding and hammer peening at the weld toe. The fatigue strength of the weldment after post treatment clearly increased, compared with that of the weldment in as-welded condition. After smooth grinding of weld bead, fatigue crack initiated at the root of the weldment, while fatigue crack initiated at the weld toe for the other methods.
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