How To Spot Weld Aluminum Sheet

Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal.

How to spot weld aluminum sheet.

The standard bs en iso 18595 resistance welding spot welding of aluminium and aluminium alloys weldability welding and testing provides useful guidelines. For commercial quality welds on 1 2mm mill finished sheets weld settings are typically in the region of. Spot welding uses the heat from an electrical current to join 2 pieces of metal quickly and is typically used for joining sheet metal. I m not a certified welder.

This type of electrical power is wanted for the big output current that spot welding requires. Spot welding machines typically deliver 150 amps per phase draw on a 440 volt system. Use three phase electrical energy to spot weld aluminum. My names matt urch and i own and.

Pro welders probably spot wel. Spot welding typically brings current for 0 1 seconds or less so the current must be very high. I m simply a self taught welder and thought i could pass on a tip that has helped me along the way. To weld sheet metal with solid wires use electrode positive ep or reverse polarity.

Forget the larger 1 8 inch tungsten electrode and use a smaller one. In this video i ll show you a fast and easy way to remove auto body spot welds without breaking the teeth off of the spot weld cutting tool. Turns out you can weld aluminum without a welder. It makes for a very strong bond and with a little practice can be done quickly with great looking results.

Here s a quick video on how to plug weld sheet metal using mig without blowing yourself a bigger hole than you started with. In this video lazze shows how you can spot weld aluminum with a standard 220 volt spot welder that is probably already in your shop. Welding aluminum is not as hard as you think. It s also easy to do with a spot welding machine which has 2 electrode tongs about 6 inches 15 cm long that pass an electrical current through the metal to fuse them together.