engineering recuitment GATE ME 2023-24 Test Series Production Engineering (Manufacturing) Machining Processes and Machine Tools Different Machining Processes
A 15 mm diameter drill with a point angle of 120° is used to drill a through-hole in a 30 mm thick assuming the length of approach and over travel to be as 2 mm each. The time required for drilling two holes if the feed is 0.1 mm/rev and the material is cut with a velocity of 15 m/min is _____ min.
Enter numerical value using the virtual keypad. Round off where necessary.