Spot Welding Aluminium Sheet

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 aluminium sheet. Spot welding also known as resistance spot welding is a resistance welding process. Spot welding is a procedure in which two metal surfaces are melted jointly to form a weld. Resistance spot welding is the joining of overlapping pieces of metal by applying pressure and electrical current. Vehicle manufacturers use resistance spot welding in the factory.

When comparing similar thickness materials the static and fatigue shear strengths of aluminium alloy spot welds are about one third the value of steel welds depending on the alloy type. 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 welding schedules electric parameters of welding electrodes materials and electrodes life time by resistance spot welding aluminium were. This welding process is used primarily for welding two or more metal sheets together by applying pressure and heat from an electric current to the weld area.

Typically the sheets are in the 0 5 to 3 mm thickness r. In this article the comprehensive summary concerning technology of resistance spot welding of aluminium alloys was presented. Where aluminium is used instead of steel its gauge is normally increased giving weld strengths which compare more favourably with those of steel but still enabling weight savings to be made. A couple of electrodes at the same time clamps the work pieces jointly and delivers the electrical current wanted to make the weld.

The process uses two shaped copper alloy electrodes to concentrate welding current into a small spot and to simultaneously clamp the sheets together. 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. Share this trick and if. These joints created by resistance spot welding form a button or fused nugget resistance spot welds are found typically on flanges staggered in a single row of consecutive welds.