A CNC vertical milling machine has to cut a straight slot of $10 \mathrm{~mm}$ width and $2 \mathrm{~mm}$ depth by a cutter of $10 \mathrm{~mm}$ diameter between points (0,0) and (100,100) on the $X Y$ plane (dimensions in $m m$ ). The feed rate used for milling is $50 \mathrm{~mm} / \mathrm{min}$. Milling time for the slot (in seconds) is

(A) 120

(B) 170

(C) 180

(D) 240

A CNC vertical milling machine has to cut a straight slot of $10 \mathrm{~mm}$ width and $2 \mathrm{~mm}$ depth by a cutter of $10 \mathrm{~mm}$ diameter between points (0,0) and (100,100) on the $X Y$ plane (dimensions in $m m$ ). The feed rate used for milling is $50 \mathrm{~mm} / \mathrm{min}$. Milling time for the slot (in seconds) is

(A) 120

(B) 170

(C) 180

(D) 240

1 Answer - 5876 Votes