Spot Welding Aluminum Sheets

Getting the tubing hot enough may take 4 to 5 minutes.

Spot welding aluminum sheets.

The high quality finish and verstaile nature make it a common choice for welding aluminum and other metals. Get it as soon as fri sep 18. 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. This type of electrical power is wanted for the big output current that spot welding requires.

Clamp up the tubing and start heating the aluminum with a propane torch. Spot welding machines typically deliver 150 amps per phase draw on a 440 volt system. 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.

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 uses the heat from an electrical current to join 2 pieces of metal quickly and is typically used for joining sheet metal. 4 6 out of 5 stars 44. 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.

The standard bs en iso 18595 resistance welding spot welding of aluminium and aluminium alloys weldability welding and testing provides useful guidelines. Welding aluminum requires a thorough understanding of the tig welding process and also requires a tig torch. Use three phase electrical energy to spot weld aluminum.