结果表明：在役焊接接头残余应力分布规律与常规焊接保持一致，符合管道焊接接头“内凸外凹”的变形机理，但在数值上差别较大。

Results show that distribution regularity of residual stress of in-service keeps coherent with routine welding, which measures up deformation mechanism of welding, but numeric value is different.

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焊接和有关技术。电阻点焊凸焊或缝焊搭接接头。带解释的缺陷分类。

Welding and allied processes. resistance spot, projection and seam welded lap joints. classification of defects with explanatory comments.

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研究了焊接过程中焊接电流产生的电磁力对电容储能凸焊喷溅、接头强度及焊接工艺的影响。

The effect of electromagnetic force on the splash, joint strength and welding process of capacitor discharge projection welding is studied.

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