Effect of Periodic Variation of System Parameters on the Arc-Power Supply System

This paper describes the preliminary results of a long-term mathematical investigation of the dynamics of the consumable electrode (gas metal arc) arc-power supply system. In welding terminology, the consumable electrode process is referred to as the gas metal-arc or Mig process. In particular, the paper describes the effects of periodic variations of various system parameters on a 1/16-inch diameter steel electrode shielded by argon with a five percent oxygen addition.