Elimination of brittleness resulting from welding of saw blades is done by __________________ of the welded portion ?
Correct answer: A. Annealing
- A. Annealing
- B. Toughening
- C. Work hardening
- D. Tempering
Explanation
Annealing the welded portion relieves residual stresses and reduces the brittleness caused by the welding thermal cycle. Work hardening would increase brittleness rather than remove it.
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