The part that directs the wire and moves electricity from the conductor tube to the workpiece is often replaced. Copper-chrome-zirconium contact tips are frequently utilized in heavy-duty cycles or precision welding. 

In the commonly used MIG welding technique, also known as metal inert gas welding, a continuous wire electrode is fed through a welding gun to form a weld. Adhering to specific guidelines and procedures is crucial to producing high-quality welds and advancing MIG welding abilities.