In electrical resistance welding, distortion results from the use of improper________________?
Correct answer: D. Clamping methods
- A. Filler material
- B. Electrodes
- C. Current
- D. Clamping methods
Explanation
In resistance welding, incorrect clamping can restrain or unevenly distribute thermal contraction, producing residual stresses and distortion. Electrodes and current mainly affect weld quality and heat generation, while filler material is generally not used.
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