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Fundamentals of Machining Processes, 2nd Edition
book

Fundamentals of Machining Processes, 2nd Edition

by Hassan Abdel-Gawad El-Hofy
August 2013
Beginner to intermediate content levelBeginner to intermediate
562 pages
16h 1m
English
CRC Press
Content preview from Fundamentals of Machining Processes, 2nd Edition
153Cutting Cylindrical Surfaces
Problems
Turning
5.1 It is required to face a disk of 450 mm outer diameter with a central
hole of 150 mm. A lathe machine is used for that job, the spindle speed
is 50 rpm, feed rate is 0.3 mm/rev, and the depth of cut is 2.5 mm.
The specic cutting energy at these cutting conditions is 1550 N/mm
2
.
Calculate
a. The machining time
b. The power consumption at the beginning of the operation
c. The power consumption at the end of the operation
5.2 If the disk in the preceding problem is faced at a constant surface speed
of 60 m/min, calculate
a. The rotational speed at the start
b. The rotational speed at the ...
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Publisher Resources

ISBN: 9781466577022