Applications of resistance welding

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• Resistance welding is used in the automotive industry. It is specially used to design nuts and bolts.
• Seam welding is used to make water tanks and boilers.
• Resistance welding is used in the welding of tubes and pipes

Types of resistance welding

The process of resistance welding is classified into many variants depending upon the shape of the workpiece and form of electrodes. Commonly used resistance welding processes are
• Spot welding
• Projection welding
• Seam welding
• Butt welding

Spot welding

It is a predominant process in the automobile industry. It is used in the assembling of automobile bodies and its large components. It is used for the manufacturing of furniture and other domestic products. In this process, the current and heat generation is localized in the form of electrode.

Projection welding

This type of resistance welding is done with specially designed electrodes to shift the shape of the workpiece. Projection welding is used in electrical equipment, electronics, automotive, and construction industries. This process is used in the manufacturing of sensors, valves, and pumps.

Seam welding

In this resistance welding process, the joints are leak-tight by continuous opposing force with electrodes consisting of rotatory wheels. Seam welding is applied in manufacturing containers, radiators and heat exchangers, etc.

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Butt welding

It is a forging operation applied to the workpiece when heated. Racks it is a resistance welding process to join metal plates or bars with an applied force of electrodes clamping the workpiece at the ends. It is applied for the manufacturing process of wheel rims, wire joints, and railway track joints.

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