Spot Welding - A Brief Guide and Tips

by Samantha Gibbs Blogger

Spot welding is a process where you can win in contact with the metal surface under the influence of heat from the resistance of electric current connected. The parts are under pressure instead of the electrodes. As a rule, leaves the 0th 5-3. 0 mm thickness range. The process uses two electrodes of an alloy of copper concentrate in the shape of the welding current to a small “spot” and pinch together at the same time leaves.

Forcing a large current through the city melts the metal and the shape of the weld. An attractive element of the spot welding is a lot of energy can be delivered to the office, in a very short time. This allows the welding occur without excessive heating to the rest of the leaf.

The amount of heat (energy delivered) on the site is determined by the resistance between the electrodes and the amplitude and duration of the current. The amount of energy you select the properties sheet of material, its thickness, correspond, and the type of electrodes. Use too little energy, does not melt metal or is weak, that the welds.

Too much energy melting the metal, cast molten material and make a hole instead of the weld. Another attractive element is the spot welding energy supplied to the organism can be controlled reliable welds can be produced.

Spot welding is typically used when certain types of welding metal. Thicker time is difficult to weld because the heat flows around the metal for easy identification. Spot welding can easily to many products such as metal buckets, metal set.

Aluminium alloys are welded in place, but their much higher thermal conductivity and electrical welding require larger currents. This requires a larger, more efficient and more expensive welding transformers.

The most common application of spot welding in automotive industry, where it is almost universally used for welding sheet metal to create the car. Spot welders can also be completely automated, and many industrial robots are on the assembly line welders spot.

Spot welding is also used in orthodontics hospital, where a small spot welding equipment used to adjust the metal “mole” is used in orthodontics.

Another application is to the point of welding of nickel-cadmium or nickel-metal-hydride battery cells.

Reference: toolspost.com