a. If rough milling of mild steel is performed using High Speed Steel (HSS) side and facemilling cutter of 100 mm diameter, what rpm should be used.b. If finish turning of a shaft is done to reduce its diameter from 24 mm to 20 mm usingcarbide tool, what rpm should be used.Metric Surface Speeds in m/min (Cutting Speed)Tool MaterialAluminumDrillingCarbide90 - 115Milling - RoughCarbideMilling - FinishCarbide120 - 240TurningCarbide Rough Carbide FinishHSSHSSHSS55 - 60120 - 240150 - 27075 - 10560 - 9060 - 90135 - 180Brass40 - 4575 - 10045 - 6060 - 7590 - 210105 - 210135 - 26035 - 4555 - 7560 - 9075 - 10560 - 100Cast Iron12 - 1815 - 2525 - 3060 - 9075 - 135Mild Steel10 - 1575 - 10575 - 12018 - 2718 -3-45 - 6023 - 40100 - 145Stainless Steel8 - 1825 - 3710 - 1555 - 6712 - 2585 - 150

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a. If rough milling of mild steel is performed using High Speed Steel (HSS) side and face milling cutter of 100 mm diameter, what rpm should be used. b. If finish turning of a shaft is done to reduce its diameter from 24 mm to 20 mm using carbide tool, what rpm should be used. Metric Surface Speeds in m/min (Cutting Speed) Milling - Finish HSS 75 - 105 60 - 90 25 - 30 23 - 40 12 - 25 Turning Drilling Carbide 90 - 115 75 - 100 Milling - Rough HSS Carbide Carbide Rough Carbide Finish 150 - 270 135 - 260 Tool Material HSS 55 - 60 40 - 45 12 - 18 10 - 15 8 - 18 Aluminum Brass 135 - 180 60 - 75 Carbide 120 - 240 90 - 210 60 - 90 120 - 240 45 - 60 105 - 210 Cast Iron 35 - 45 15 - 25 55 - 75 60 - 90 60 - 90 75 - 135 18 -3- 10 - 15 75 - 105 60 - 100 Mild Steel 18 - 27 25 - 37 75 - 105 45 - 60 55 - 67 100 - 145 Stainless Steel 75 - 120 85 - 150

a. If rough milling of mild steel is performed using High Speed Steel (HSS) side and face milling cutter of 100 mm diameter, what rpm should be used. b. If finish turning of a shaft is done to reduce its diameter from 24 mm to 20 mm using carbide tool, what rpm should be used. Metric Surface Speeds in m/min (Cutting Speed) Milling - Finish HSS 75 - 105 60 - 90 25 - 30 23 - 40 12 - 25 Turning Drilling Carbide 90 - 115 75 - 100 Milling - Rough HSS Carbide Carbide Rough Carbide Finish 150 - 270 135 - 260 Tool Material HSS 55 - 60 40 - 45 12 - 18 10 - 15 8 - 18 Aluminum Brass 135 - 180 60 - 75 Carbide 120 - 240 90 - 210 60 - 90 120 - 240 45 - 60 105 - 210 Cast Iron 35 - 45 15 - 25 55 - 75 60 - 90 60 - 90 75 - 135 18 -3- 10 - 15 75 - 105 60 - 100 Mild Steel 18 - 27 25 - 37 75 - 105 45 - 60 55 - 67 100 - 145 Stainless Steel 75 - 120 85 - 150

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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