Overhead Mig Welding Sheet Metal

The main things to remember in learning how to mig weld overhead are.

Overhead mig welding sheet metal.

Keep your arc length short. One of the problems is that globs of metal will drop more from your weld puddle if your arc is long. Hold the panels in place. When welding thin metal the main objective is to avoid warping burn through and excessive heat affected zones while still ensuring the weld has enough mechanical strength for the application.

Short circuit transfer mig short arc tig and pulsed tig welding processes provide the most control over the heat to address these challenges. The keys to a good weld in the overhead position is to. The ability to join a wide range of metals and thicknesses. Keep in mind during the welding process it is important to direct the arc right at the center of the weld puddle and don t do movements like whipping or weaving as it may cause warping and burn through quickly.

When mig welding sheet metal it is important to set the proper parameters to prevent warping and burn through or else it will create excess heat and easily blowholes on the metal. Here are some advantages to mig welding. Voltage and wire speed should be set the same as you would weld for flat or horizontal welding. Learn why mig pulsed mig tig and pulsed tig are the ideal choices when welding sheet metal.

After cutting and fitting the new panel you are now ready to weld the patch panel in place. To obtain the best results while mig welding sheet metal proper fitment and cleanliness of the metal are essential. Setting it hot will make the weld flatten out instead of piling up if you keep the stickout short. The backside of the patch should be sprayed with etching to prevent rusting.

Carbon steel stainless steel aluminum magnesium copper nickel silicon bronze and other alloys. As i mentioned earlier you will discover that the force of gravity will allow the weld puddle to droop down since it s above you. Set the machine hot just like you would for welding flat right on the workbench in front of you this takes advantage of the arc force of the mig arc.