How To Spot Weld Aluminum Sheet

Spot welding machines typically deliver 150 amps per phase draw on a 440 volt system.

How to spot weld aluminum sheet.

To weld sheet metal with solid wires use electrode positive ep or reverse polarity. The standard bs en iso 18595 resistance welding spot welding of aluminium and aluminium alloys weldability welding and testing provides useful guidelines. It makes for a very strong bond and with a little practice can be done quickly with great looking results. This instructable will teach you how to use a propane torch and some aluminum brazing rods as a quick way to bond aluminum without using a welder.

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. Use three phase electrical energy to spot weld aluminum. Tig welding sheet metal. Forget the larger 1 8 inch tungsten electrode and use a smaller one.

Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal. Spot welding typically brings current for 0 1 seconds or less so the current must be very high. For commercial quality welds on 1 2mm mill finished sheets weld settings are typically in the region of. Share this trick and if.

This type of electrical power is wanted for the big output current that spot welding requires. Welding aluminum is not as hard as you think. 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 simply a self taught welder and thought i could pass on a tip that has helped me along the way.

Pro welders probably spot wel. 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. My names matt urch and i own and. Here s a quick video on how to plug weld sheet metal using mig without blowing yourself a bigger hole than you started with.