Spot Welding Aluminium Sheet

A couple of electrodes at the same time clamps the work pieces jointly and delivers the electrical current wanted to make the weld.

Spot welding aluminium sheet.

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. 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. Spot welding is a type of electric resistance welding used to weld various sheet metal products through a process in which contacting metal surface points are joined by the heat obtained from resistance to electric current. Work pieces are held together under pressure exerted by electrodes.

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. The welding schedules electric parameters of welding electrodes materials and electrodes life time by resistance spot welding aluminium were. Vehicle manufacturers use resistance spot welding in the factory. The aluminium alloys are more frequently used in automotive industry especially as an alternative material for car bodies.

Resistance spot welding is the joining of overlapping pieces of metal by applying pressure and electrical current. Share this trick and if. The process uses two shaped copper alloy electrodes to concentrate welding current into a small spot and to simultaneously clamp the sheets together. 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.

Typically the sheets are in the 0 5 to 3 mm thickness r. 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. 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.