Mechanical Engineering - Workshop Technology - Discussion
Discussion Forum : Workshop Technology - Section 2 (Q.No. 34)
34.
Tandem drawing of wires and tubes is necessary because
Discussion:
11 comments Page 2 of 2.
KHDW said:
1 decade ago
Usually drawing is done cold.
Maximum reduction in cross-sectional area per pass of drawing is restricted to 45%. Beyond this reduction, tensile stress may increase and surface finish may become poor.
Due to large stress involved in drawing, the drawn wire gets strain hardened. Therefore, intermediate annealing is required before next stage of drawing.
Maximum reduction in cross-sectional area per pass of drawing is restricted to 45%. Beyond this reduction, tensile stress may increase and surface finish may become poor.
Due to large stress involved in drawing, the drawn wire gets strain hardened. Therefore, intermediate annealing is required before next stage of drawing.
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