New Technology Aids Robotic Welding Researchers at University West in Trollhattan, Sweden, invent a welding tool that also functions as a temperature sensor, improving weld precision and strength. The sensor continuously measures the temperature of the dissimilar materials used in friction-stir welding, such as aluminum and steel. That technique uses a rotating non-consumable cylinder pressed into the material to combine frictional heat and mechanical stirring to create a high-quality ...


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