A gas cup for Gas Tungsten Arc Welding

摘要

The present invention relates to a gas cup to weld a gas tungsten arc, comprising: a tube-shaped main cup provided to cover an electrode rod on a front end of a welding head, and to discharge gas to protect a welding portion; and a tube-shaped auxiliary cup having a diameter smaller than that of the main cup, detachably coupled to a front end of the main cup. The gas cup to weld the gas tungsten arc is able to perform gas tungsten arc welding by easily approaching a narrow welding space, and properly supplying gas to protect the welding portion.