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Surface contouring of a weld cap and adjacent base metal using ultrasonic impact treatment
Surface contouring of a weld cap and adjacent base metal using ultrasonic impact treatment
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机译：使用超声波冲击处理对焊帽和相邻母材进行表面轮廓处理
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摘要
A method for forming a smooth interface between a weld cap and an adjacent base metal utilizing ultrasonic impact treatment. The method improves the geometric profile of a weld while imparting a compressive residual stress layer on the weld metal and base metal thereby alleviating the tensile residual stresses imparted to the metals during welding. The contouring process does not remove material, as in grinding, but plastically deforms the surface being treated producing a densified surface, in turn providing a smooth weld cap and base metal surface finish without the loss of base or weld metal thickness.
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