Why yield strength increases in cold drawing process?
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Cold drawing of steel bar changes the mechanical properties of the hot roll bar with standard drift -
1-tensile strength increses
2-hardness increses
3-ductility decreses
As hardness increses by cold drawing, t he yeild strength pick up about 4 times mulyiple compared to hardness.
1-tensile strength increses
2-hardness increses
3-ductility decreses
As hardness increses by cold drawing, t he yeild strength pick up about 4 times mulyiple compared to hardness.
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