Question

The time consumed in driling in holes in a carbon steel biock of length130 mm is59 minutes. Calculate the number of holes drilledif the feed rate is:029 mm/evolution, the spindle speed is415 p.m, the tool over travel is3 mm and the approach length is3 mm. Neglect the clearance allowance C.
Wite your answer upto TWO decimal places

Answer 1

Thank you...