Question

A 600 mm x 30 mm flat surface of a plate is to be finish machined on a shaper. The 'plate has
been fixed with the 600 mm side along the tool travel direction. If the tool over-travel at each end
of the plate is 20 mm, average cutting speed is 8 m/min, feed rate is 0.3 mm/stroke and the ratio
of the return time to cutting time of the tool is 1 : 2, the time required for machining will be
8 min
(A) 12 min
(B) 16 min
(C) 20 min
(D) 8 min​

Answer 1

Answer:

sorry my dear frnd i dont no this answer

Answer 2

Answer:

Explanation:

(A) 12 min