The analysis of thermal processes and experimentally determined temperature distribution along the axis of the current lead in the MIG/MAG welding process.

Get empirical relationships wear current supplies the operating time under various conditions, to predict weight loss in a given period of time. The effect of the depreciation of the current lead on the electrode metal loss, stable wire feed and arc ignition process for MIG/MAG welding.

The generalized classification of the factors influencing a work resource the current lead of devices of welding torches for the MIG/MAG welding is carried out.

Recommendations about application the current lead of devices (contact tips) from various materials for the MIG/MAG welding are developed.