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
Precision Machining Technology (MindTap Course List)
2nd Edition
ISBN:9781285444543
Author:Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Publisher:Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Chapter5: Turning
Section5.3: Machining Operations On The Lathe
Problem 5RQ: Calculate spindle RPM and machining time for cutting a 1.5" diameter 4" long at 225 SFPM using a...
Related questions
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Precision Machining Technology (MindTap Course Li…
Mechanical Engineering
ISBN:
9781285444543
Author:
Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Publisher:
Cengage Learning
Precision Machining Technology (MindTap Course Li…
Mechanical Engineering
ISBN:
9781285444543
Author:
Peter J. Hoffman, Eric S. Hopewell, Brian Janes
Publisher:
Cengage Learning