Spot Welding Aluminum Sheets

Aluminum will start to melt at 1200deg fahrenheit but the brazing rod will melt at around 700deg so we want to get the aluminum hot enough to melt the rod without melting the tubing.

Spot welding aluminum sheets.

Welding aluminum requires a thorough understanding of the tig welding process and also requires a tig torch. Free shipping on your first order shipped by amazon. 4 6 out of 5 stars 44. Use three phase electrical energy to spot weld aluminum.

Spot welding machines typically deliver 150 amps per phase draw on a 440 volt system. Clamp up the tubing and start heating the aluminum with a propane torch. 14 pack spot weld cutter sets double sided 3 8 hss spot weld cutter remover drill bits hex sheet metal hole cutter remover for power drill spot welding. Get it as soon as fri sep 18.

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. Spot welding uses the heat from an electrical current to join 2 pieces of metal quickly and is typically used for joining sheet metal. The standard bs en iso 18595 resistance welding spot welding of aluminium and aluminium alloys weldability welding and testing provides useful guidelines. Spot welding typically brings current for 0 1 seconds or less so the current must be very high.

Getting the tubing hot enough may take 4 to 5 minutes. The high quality finish and verstaile nature make it a common choice for welding aluminum and other metals. Resistance spot welding aluminum sheet surface modification by applying electrode coatings implication of surface roughness improvements in weld morphology corresponding reduction in weld quality variations resulting extended electrode life 0 welds 1000 welds 3000 welds taken from chan and schotmer smwc xiii 2008.