This video shows a few mig welding tips and techniques for 45 degree miters on square tubing. the direction of welding makes a big difference and so does weld bead sequence. I used .025" er70s-6 wire on a lincoln powermig 210mp but .030" or .035" wire would have worked just fine. | Welding Tips & Tricks

One simple mig welding technique for all positions in one video. The reason it works is because the arc traces the leading edge of the puddle. This might not be the absolute best mig welding technique for every situation but it sure does work | Welding Tips & Tricks