Question

please make sure it is correct

A copper alloy wire which is drawn from 18 mm to 12.72 mm diameter. What is the cold work that the wire undergoes? 400 80 330 70 300 Tensie strength 60 250 50 02% proor strength Tensile strength and 12% proof strength (mm) 200 40 120 Elongation ) $150 30 100 Hardness 100 20 BO Hardness (HY 50 Elongation 10 80 40 10 20 30 40 50 70 % Cold Work OL 30.1 OLI 50.06 O IL 29.33 OIV 100

Answer 1

The answer %Cold Work 50.06 please check solution in photo

प्र.क्र. Q. No. YOGA Answer. given data - از) geve % (W = Original diameter of wire (do) = V18 mm final diameter of wire (df) ²012.72 mm 28-ool ool To find % cold work of wire PS.o роос = 229712 Equation to find so cold work is S 1209 av aorta brit of Ao - Af x 100 (onlov gldat) appar 3) 2) Ao to wlwbom prino) pap is where Ho lubong 2000 Ao = Original area of wire of wlwt Af = prefinal area oof I got noviel i doidow nivetpetatizoqonos clocw = (4x 18 182) v.2 + ( * 183) ㅋ ex og wirew Tig +42-72) x loa 254.4690 = 127:076 127.0761 x 100 256. 6690 dont = 254.4690 (ope ope aww/oV { xogo こ 50.06 so.06 - .: % cold work