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Question 6. (5 marks) In a single pass boring operation, a through hole of 15mm dia is to be enlarged to a 25 mm dia in
Posted: Tue May 24, 2022 9:54 am
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- Question 6 5 Marks In A Single Pass Boring Operation A Through Hole Of 15mm Dia Is To Be Enlarged To A 25 Mm Dia In 1 (42.45 KiB) Viewed 35 times
Question 6. (5 marks) In a single pass boring operation, a through hole of 15mm dia is to be enlarged to a 25 mm dia in a steel plate of 50mm thickness. Drill spindle speed is 500rpm, feed is 0.2mm/rev and drill point angle is 118°. Assume 2mm clearance at the approach and exit. Calculate the total drill time.