Spot Welding Aluminum Foil

Scope the current presentation.
Spot welding aluminum foil. It s a great way to impress your unknowing friends and coworkers. Detailed weld settings are available in standard text books or from suppliers of the material or equipment and may depend on the detailed quality requirements and materials being used. Aluminum could be conducting heat away to fast to make good spot weld. Use three phase electrical energy to spot weld aluminum.
Maybe aluminum foil then shim stock a couple thou thick. Material type mild steel stainless steel aluminum titanium hsla tantalum etc. This quick trick will have you welding thin aluminum foil in no time. The thicker or larger the material the larger the welding equipment requirements.
Spot welding typically brings current for 0 1 seconds or less so the current must be very high. 06 14 2012 09 05 pm 11. Size your equipment for the worst case scenario maximum material thickness. But i believe true spot welding is all about the resistance to current and the heat generated fusing the materials and not so much the.
Gould technology leader resistance and solid state welding edison welding institute ph. Spot welding machines typically deliver 150 amps per phase draw on a 440 volt system. Using thin scrap steel sheet between the electrodes and the aluminium also works well. The standard bs en iso 18595 resistance welding spot welding of aluminium and aluminium alloys weldability welding and testing provides useful guidelines.