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Circular blanks of 35 mm dia are punched from a steel sheet of 2 mm thickness. If the clearance per side between the punch and die is to be kept as 40 microns. The sizes of punch and die should respectively be
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- 35 and 35.040
- 34.92 and 35
- 35 and 35.080
- 35.040 and 34.92
Correct Option: B
Dia of Die = 35 mm
Dia of Punch = 35 – 2 × 0.04 = 34.92mm
