The inner quality of welding line,the welding structure,the mechanical property,the welding efficiency and the line energy of the two types of welding methods are contrastively studied.

• 分析焊缝内部的质量、焊接接头的组织、焊接接头的强度,对比两种工艺的焊接效率和线能量,研究结果表明:在焊缝内部质量、焊接强度方面,双丝焊优于单丝焊;