A slab milling operation is performed on the top surface of a steel rectangular workpiece 12.0 in long by 2.5 in wide. The helical milling cutter, which has a 3.0 in diameter and ten teeth, is set up to overhang the width of the part on both sides. Cutting speed is 125 ft/min, feed is 0.006 in/tooth, and depth of cut = 0.300 in. Determine (a) the actual machining time to make one pass across the surface and (b) the maximum metal removal rate during the cut. (c) If an additional approach distance of 0.5 in is provided at the beginning of the pass (before cutting begins), and an overtravel distance is provided at the end of the pass equal to the cutter radius plus 0.5 in, what is the duration of the feed motion.
A slab milling operation is performed on the top surface of a steel rectangular workpiece 12.0 in long by 2.5 in wide. The helical milling cutter, which has a 3.0 in diameter and ten teeth, is set up to overhang the width of the part on both sides. Cutting speed is 125 ft/min, feed is 0.006 in/tooth, and depth of cut = 0.300 in. Determine (a) the actual machining time to make one pass across the surface and (b) the maximum metal removal rate during the cut. (c) If an additional approach distance of 0.5 in is provided at the beginning of the pass (before cutting begins), and an overtravel distance is provided at the end of the pass equal to the cutter radius plus 0.5 in, what is the duration of the feed motion.
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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Transcribed Image Text:across the surface and (b) the maximum metal removal rate during cutting
A slab milling operation is performed on the top surface of a steel rectangular
workpiece 12.0 in long by 2.5 in wide. The helical milling cutter, which has a
3.0 in diameter and ten teeth, is set up to overhang the width of the part on
both sides. Cutting speed is 125 ft/min, feed is 0.006 in/tooth, and depth of
cut = 0.300 in. Determine (a) the actual machining time to make one pass
across the surface and (b) the maximum metal removal rate during the cut.
(c) If an additional approach distance of 0.5 in is provided at the beginning of
the pass (before cutting begins), and an overtravel distance is provided at
the end of the pass equal to the cutter radius plus 0.5 in, what is the duration
of the feed motion.
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