Design and Implementation of Automatic Welding Machine

In applications where heavy metal welding is performed, the short circuit welding current is very high. During these conditions, manual welding is difficult. Hence, using an automated welding system enhances the productivity and quality of welds, thus reducing dependency on skilled work force. In this manuscript one such mechanism of DC welding, where the welding electrode is automated with a voltage control algorithm is discussed. This algorithm is implemented by sensing the voltage across the electrodes and controls the welding action based on the logic implemented. Implementation of this automated system ensures, monitored time of contact between the job and electrode.