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There are different types of welding for different purposes. The oldest is forge welding, which is carried out by heating and hammering. After this came resistance welding which requires the application of both heat and pressure to achieve a sound joint. The latest methods of welding include electron beam welding, laser beam welding and Robot welding.

Spot Welding is a form of resistance welding. Spot welding concentrates on particular points to weld. This technique is used for joining sheet metal fabrications, stampings and assemblies. It is indeed economical, fast and reliable. However, the engineers have to consider numerous design options as it plays an important role in the cost and quality of the weld.
 
The DC inverter is one such device that supplies consistent, reliable welds with optimal nugget formation. This device has plenty of benefits in some resistance welding applications. The user can regulate the welding process after using a high speed control monitoring multiple weld function with adaptive feedback. Greater control over current and heat generation helps reduce energy consumption, increases electrode life and improves weld quality.

These days more and more parts are made of aluminum. The aluminum spot welding equipment is a hit with the automobile industry. The three basic aluminum welding machines are - Three Phase Welding, Capacitor Discharge Welding and Single Phase Aluminum Spot Welding.

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