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Spot welding is a resistance welding process used to join two or more metal sheets together by applying pressure and heat generated from an electric current at small points (spots). The metal surfaces are clamped between two copper electrodes, and when current passes through, the resistance at the contact points produces enough heat to melt and fuse the metals.
It is commonly used in automotive, sheet metal, and appliance manufacturing because it is fast, clean, and efficient. However, it is mainly suitable for thin metal sheets and not ideal for thick materials or non-metallic materials.
- Teacher: NIYITEGEKA Patrick