Study on DC welding parameters of Al-alloy shaping based on arc-welding robot

摘要

The Al-alloy arc-welding shaping system based on arc-welding robot is established,and the Al-alloy shaping manufacture is realized with the DC (direct current) gas metal arc welding (GMAW). The research indicates that the metal transfer type of DC GMAW,heat input and the initial temperature of the workpiece greatly affect the Al-alloy shaping based on arc welding robot. On the penetration,the weld width and the reinforcement,the influence of welding parameters is analyzed by generalized regression neural network (GRNN) fitting.