Problem $6$

A peripheral milling operation is performed on the top surface of a rectangular workpart which is $400$ mm long $58mm$ wide. The milling cutter, which is $75$ mm in diameter and has four teeth, overhangs the width of the part on both sides. Cutting speed $=70m\frac{m}{m}in,$ chip load $0\mathrm{.}25=m\frac{m}{?}$ tooth, and depth of cut $=5\mathrm{.}0mm.$ Determine:

$($a$)$ The rotational speed of the cutter $($rpm$)$

$($b$)$ The feed rate $(m\frac{m}{m}in)$

$($c$)$ Actual machining time to make one pass across the surface $($min$)$

$($d$)$ The maximum material removal rate during the cut $(m\frac{m^3}{m}in)$

$($e$)$ Is this machining operation feasible? If not, how would you improve the machining operation?