Degarmo's Materials And Processes In Manufacturing

13th Edition

ISBN: 9781119492825

Author: Black, J. Temple, Kohser, Ronald A., Author.

Publisher: Wiley,

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Machining Processes and Machine Tools

Machining is represented as the process in which an excessive amount of substance is eliminated from the particular element in the form of pieces. In machining, cutting tools such as rotary tools, lathe, drill press, grinder, chop saw, welders, and many …

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Textbook Question

Chapter 23, Problem 27RQ

Why does boring ensure concentricity between the hole axis and the axis of rotation of the workpiece (for boring tool), whereas drilling does not?

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Chapter 23, Problem 26RQ

Chapter 23, Problem 28RQ

Students have asked these similar questions

7. What are the main differences between the twist drill and the end mill cutting tools? 8. What are the different methods to fix the wp on the milling machine? 9. With the aid of net sketches, state the different milling operations on the vertical milling machine. 10. With aid of neat sketch, explain the milling parameters. 11. With aid of neat sketches, explain the drilling parameters.

ASSIGNMENT QUESTION

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) Tool Material Aluminum Drilling Carbide 90 - 115 Milling - Rough Carbide Milling - Finish Carbide 120 - 240 Turning Carbide Rough Carbide Finish HSS HSS HSS 55 - 60 120 - 240 150 - 270 75 - 105 60 - 90 60 - 90 135 - 180 Brass 40 - 45 75 - 100 45 - 60 60 - 75 90 - 210 105 - 210 135 - 260 35 - 45 55 - 75 60 - 90 75 - 105 60 - 100 Cast Iron 12 - 18 15 - 25 25 - 30 60 - 90 75 - 135 Mild Steel 10 - 15 75 - 105 75 - 120 18 - 27 18 -3- 45 - 60 23 - 40 100 - 145 Stainless Steel 8 - 18 25 - 37 10 - 15 55 - 67 12 - 25 85 - 150

Chapter 23 Solutions

Degarmo's Materials And Processes In Manufacturing

Ch. 23 - How is the tool-work relationship in turning...Ch. 23 - What different kinds of surfaces can be produced...Ch. 23 - How does form turning differ from ordinary...Ch. 23 - What is the basic difference between facing and a...Ch. 23 - Which operations shown in Figure 23.3 do not form...Ch. 23 - Why is it difficult to make heavy cuts if a form...Ch. 23 - Show how equation 23.6 is an approximate equation.Ch. 23 - Why is the spindle of the lathe hollow?Ch. 23 - What function does a lathe carriage have?Ch. 23 - Why is feed specified for a boring operation...

Ch. 23 - Why are depths of cut in boring usually smaller...Ch. 23 - How can work be held and supported in a lathe?Ch. 23 - How is a workpiece that is mounted between centers...Ch. 23 - What will happen to the workpiece when turned, if...Ch. 23 - Why is it not advisable to hold hot-rolled steel...Ch. 23 - How does a steady rest differ from a follow rest?Ch. 23 - What are the advantages and disadvantages of a...Ch. 23 - Why should the distance the cutting tool overhangs...Ch. 23 - Prob. 19RQ Ch. 23 - How can a tapered part be turned on a lathe?Ch. 23 - Why might it be desirable to use a heavy depth of...Ch. 23 - If the rpm for a facing cut (assuming given work...Ch. 23 - Why is it usually necessary to take relatively...Ch. 23 - How does the corner radius of the tool influence...Ch. 23 - What effect does a BUE have on the diameter of the...Ch. 23 - How does the multiple-spindle screw machine differ...Ch. 23 - Why does boring ensure concentricity between the...Ch. 23 - Why are vertical spindle machines better suited...Ch. 23 - Prob. 29RQ Ch. 23 - Prob. 30RQ Ch. 23 - In which figures in this chapter is a dead center...Ch. 23 - Prob. 32RQ Ch. 23 - In which figures in this chapter showing setups do...Ch. 23 - How many form tools are being utilized in the...Ch. 23 - Prob. 35RQ Ch. 23 - Select the speed, feed, and depth of cut for...Ch. 23 - Calculate the rpm NS to run the spindle on a lathe...Ch. 23 - The lathe in problem 2 has rpm settings of 20, 30,...Ch. 23 - Calculate the cutting time if the length of cut is...Ch. 23 - Calculate the metal removal rate for machining at...Ch. 23 - Determine the speed, feed, and depth of cut when...Ch. 23 - At a speed of 90 fpm, feed of 0.030 ipr, and depth...Ch. 23 - Calculate the cutting time for a 4-in. length of...Ch. 23 - For a boring operation at V=90,fr=0.030, and...Ch. 23 - A cutting speed of 100 sfpm has been selected for...Ch. 23 - The following data apply for machining a part on a...Ch. 23 - A finish cut for a length of 10 in. on a diameter...Ch. 23 - A workpiece 10 in. in diameter is to be faced down...Ch. 23 - A hole 89 mm in diameter is to be drilled and...

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