Elimination of brittleness resulting from welding of saw blades is don

1.	Elimination of brittleness resulting from welding of saw blades is done by __________________ of the welded portion ?
A.	Annealing
B.	Toughening
C.	Work hardening
D.	Tempering
Answer» B. Toughening

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Elimination of brittleness resulting from welding of saw blades is done by __________________ of the welded portion ?

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