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分析了１Ｃｒ１８Ｎｉ９Ｔｉ不锈钢点焊过程中的动态电阻变化特性，研究了点焊工艺、结构等对动态电阻的影响，提出了用“相对电阻”进行点焊质量自适应控制，研制了以“相对电阻”为质量判据的单片机点焊质量监控系统。
The dynamic resistance change of 1Cr18Ni9Ti stainless steel during spot welding was analyzed. The influence of spot welding technology and structure on dynamic resistance was studied. The adaptive control of spot welding quality with “relative resistance” was put forward. The “relative resistance” For the quality of the single-chip spot welding quality control system.