Recent Advances in Welding Power Systems for Automated Welding

Abstract

Since the 1982 introduction of inverter control technology into an arc welding power source, it has proliferated throughout gas shielded arc welding processes in Japan The requirements for inverter sources have been based upon the improvement of welding performance coming from high-speed control of current, rather on than many improvements on functional aspects such as miniaturization weight reduction and of electricity. Particularly, efforts for the most part have focused on the analyses of welding arc phenomena and how to control the phenomena with external parameters. Consequently varous waveform control systems have been developed.