what are the defects of friction stir welding
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The occurring defects are demonstrated on various materials.Friction stir welding (FSW) is a relatively new ma- terial joining process. It was invented and experimen- tally proven in 1991 by awelding institute in UK, which also holds the associated patent rights .
IF IT IS CORRECT MARK BRAINLIEST ✌️
IF IT IS CORRECT MARK BRAINLIEST ✌️
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