When your arc melts your wire faster than it comes out of your gun it can not go anywhere and therefore will travel back into the contact tip. In fact, a feed that’s too slow is one of the most common causes of burnback. Wire-Feed Speedįinding the right wire-feed speed for your gun can mean the difference between a smooth weld and one plagued with problems. Here are 5 ways to find the source of your contact tip burnback, fix it, and get back to your weld. 5 Possible Sources of Contact Tip Burnback This often happens when your wire arcs at the contact tip and welds itself inside the tip.īurnback is solely a MIG issue because it only happens when the wire is continuously fed through a small contact tip hole. This common issue happens because of the MIG wire burning back to your tip. A good, steady wire feed increases your ability to maintain consistently good welds.īut what if your MIG wire burns back to the tip, causing burnback and sputtering your work to a quick halt? The wire is one MIG gun component that can make or break a successful weld.
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