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EQUIPMENT FOR RESISTANCE WELDING
The equipment for resistance welding is different from that for arc welding for the following reasons: Resistance welding machines are complicated and very costly. Automation and controls are more in these. Many resistance welding equipments are custom - built. The machines can be operated with single phase or three phase mains. The equipment may be direct energy or stored energy machines. All the resistance welding machines require a low voltage, high current output (current in the order of thousand to lakhs of amperes). Four main constituents are:1. Electrical Power source2. Mechanical system3. Control equipment4. Feeding system
Inconel Electrodes These electrodes are used in the industries, like petrochemical, fertiliser, etc. The weld composition contain small percentage of alloying elements like V, Mo
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Seam Welding Seam welding is different from spot welding by the fact that roller type electrodes are used in the former case. The principle and process of welding are the same
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