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- Spot Weldabaility Principles and Considerations
Spot Weldabaility Principles and Considerations
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Spot welding is one of the most common methods in sheet metal joining. Thousands of spot points can be presented in one automobile and other product due to its economical, rapid production, costs, and reliability. The sheet specimens of carbon steel, aluminum alloy, and stainless steel, etc., in a strip form are welded using a spot welding process. The strips of lap-joints and curved peel-joints configurations have widely used in the systematic testing of the welding parameters such as weld current, and weld time. The direct relation between the weld area and the joint strength depends on the heat generation. The cracks have observed in a welded structure during the working under loading. They are presented around the spot nugget at welded temperature due to incomplete melting and inappropriate electrode pressure, which causes an expulsion of molten metal.
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