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 utilised in heavy-duty cycles or precision welding. 

A continuous wire electrode is fed through a welding gun to form a weld in the commonly used MIG welding technique, also known as metal inert gas welding. It's crucial to adhere to specific guidelines and procedures if you want to produce high-quality welds and advance your MIG welding abilities.