By means of the characteristic parameters synthetically value, a quantitative evaluation system has been built up to describe and evaluate the short-circuiting transfer process of CO2 arc welding.

• 本文研究了CO2焊接熔滴短路过渡特征参数及其统计规律，提出并建立了 以特征综合值来描述和评判CO2焊接短路过渡过程的定量评价体系，研究了 最佳特征参数和焊接规范推荐值的求取方法。