Aluminum bar with 100mm diameter and 500mm long is turnmed down to 88mm diameter, using two passes on a lathe machine at a cutting speed 90m/min, feed 0.4 mm/rev, and depth of cut 3 mm. The bar will be held in a chuck and supported on the opposite end in a live center. With this work holding setup, one end must be turned to diameter; then the bar must be reversed to tum the other end. Using an overhead crane available at the lathe, the time required to load and unload the bar is 5 min., and the time to reverse the bar is 3min. For each tuming cut an allowance must be added to the cut length for approach and over travel. The total allowance (approach plus overtravel) 10 mm. Determine the total cycle time to complete this turning operation.
Aluminum bar with 100mm diameter and 500mm long is turnmed down to 88mm diameter, using two passes on a lathe machine at a cutting speed 90m/min, feed 0.4 mm/rev, and depth of cut 3 mm. The bar will be held in a chuck and supported on the opposite end in a live center. With this work holding setup, one end must be turned to diameter; then the bar must be reversed to tum the other end. Using an overhead crane available at the lathe, the time required to load and unload the bar is 5 min., and the time to reverse the bar is 3min. For each tuming cut an allowance must be added to the cut length for approach and over travel. The total allowance (approach plus overtravel) 10 mm. Determine the total cycle time to complete this turning operation.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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