How to MIG Weld a Puddle Joint

Video Transcript

" Hi I'm Mike Rogers and we are making this video for expertvillage.com on the uses of a mig welder. Having showing you a few useful techniques it is important to show you how to look at the machine itself because this nozzle does get badly covered in splatter from the weld and needs cleaning periodically. In addition wire in the sensor can become welded in the tip if you are not very careful. This happens periodically so you need to know how to clean the problem. Firstly we remove the gas shield. Simply by this. Secondly we look here we could see that the weld bead of the end of the wire has become attached to the tip. So by pulling the trigger the wire can not come through it is weld itself. We need to clear this problem. Okay to clear the end of the welder tip we have a pair of wire cutters and we simply cut away the weld portion and try again and Yes the wire is now flowing through. Cut it to length you always want to keep this little length before you start to weld. So that is the tip prepare for the next weld. This turns our attention to the gas shield nozzle. This nozzle has started to become clog with bits of welding splatter inside. We need to keep it clear. It could filled up complete if we don't keep up with this problem. A simple round wire brush is a good start. Simply brush inside of the nozzle until all those little bit of splatter are gone. We could then take a larger wire brush and give it a simple clean around the inside. The cleaner we keep this area the better it would keep itself cleaned once we are working. now sometimes ....here you could get a very tough of weld splatter as you see it is built inside we need to remove this with the wire cutters. Simply checking away inside and then finishing with the wire brush one last time. This then goes back on to our torch and we are ready to start the next welding project."