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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Textbook Question
Chapter 22, Problem 27RQ
Machinability is defined in many ways. Explain how a rating is obtained using tool life data.
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21.30 Explain why it is possible to remove more material between tool resharpening by lowering the cutting speed.
2 2 . 16 Explain why so many different types of cutting-tool materials have been developed over the years. Why are they still being developed further?
what are the three basic parameters (cutting variables) in the machining process? how to calculate them
Chapter 22 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 22 - For metal-cutting tools, what is the most...Ch. 22 - What is hot hardness compared to hardness?Ch. 22 - Prob. 3RQCh. 22 - Why is impact strength an important property in...Ch. 22 - Cemented carbide tools are made by a powder...Ch. 22 - What are the primary considerations in tool...Ch. 22 - What is the general strategy behind coated tools?Ch. 22 - Prob. 8RQCh. 22 - How is a CBN tool manufactured?Ch. 22 - Prob. 10RQ
Ch. 22 - Prob. 11RQCh. 22 - Discuss the constraints in the selection of a...Ch. 22 - What does cemented mean in the manufacture of...Ch. 22 - What advantage do ground carbide inserts have over...Ch. 22 - What is a chip groove?Ch. 22 - What is the DCL?Ch. 22 - Suppose you made four beams out of carbide, HSS,...Ch. 22 - Multiple coats or layers are put on the carbide...Ch. 22 - What tool material would you recommend for...Ch. 22 - What makes the process that makes TiC coatings for...Ch. 22 - Why does a TiN-coated tool consume less power than...Ch. 22 - For what work material are CBN tools more commonly...Ch. 22 - Why is CBN better for machining steel than...Ch. 22 - What is the typical coefficient of variation for...Ch. 22 - What is meant by the statement Tool life is a...Ch. 22 - The typical value of a coefficient of variation in...Ch. 22 - Machinability is defined in many ways. Explain how...Ch. 22 - What are the chief functions of cutting fluids?Ch. 22 - Prob. 29RQCh. 22 - Why is the PVD process used to coat HSS tools?Ch. 22 - Why is there no universal cutting tool material?Ch. 22 - What is an 18-4-1 HSS composed of?Ch. 22 - Over the years, tool materials have been developed...Ch. 22 - Why is the rigidity of the machine tool an...Ch. 22 - Explain how it can be that the tool wears when it...Ch. 22 - What is a honed edge on a cutting tool and why is...Ch. 22 - Suppose you have a turning operation using a tool...Ch. 22 - A 2 in.-diameter bar of steel was turned at 284...Ch. 22 - Prob. 3PCh. 22 - The following data have been obtained for...Ch. 22 - In the insert is set with a 0 side cutting-edge...Ch. 22 - Prob. 6PCh. 22 - Here is a single point tool. Identify angles A...Ch. 22 - Figure 22.B gives data for cutting speed and tool...
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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.Similar questions
- a) It has been stated that it is generally undesirable to allow temperatures to riseexcessively in machining operations. Explain why?b) List out the cutting parameters which is influenced the rises of cuttingtemperature during turning process.c) Evaluate the relationship of these cutting parameters to the cutting temperaturewith graph.d) Propose the solution of how to reduce the temperature during the cuttingprocess.arrow_forwardA tool with zero rake angle used in orthogonal cutting when its clearance angle a is changed from 10 to 7 deg, Calculate the approximate % change in the life of the tool.arrow_forwardMake a comprehensive write up on tool-wear and tool life with due reference to cutting speed and tool life. ( Manufacturing process)arrow_forward
- 21.40 Explain whether it is desirable to have a high or low (a) n value and (b) C value in the Taylor tool-life equation.arrow_forward21.16 Explain what is meant by the term machinability and what it involves. Why does titanium have poor machinability?arrow_forwardIn machining a mild steel work piece with carbide tool, the life of the tool was found to be 1 hour and 40 minutes, at a spindle speed of 25 m/min. Calculate the tool life if it has to be operated at a speed of 30% higher than the initial cutting speed. Also calculate the cutting speed if the tool is required to have a life of 2 hours and 45 minutes. Assume Taylor’s exponent value n is 0.28.arrow_forward
- Explain the mechanics of metal cutting with neat sketch. Why machining of ductile and brittle material leads to form continuous and discontinuous chip respectively?arrow_forwardFind the machining time required to turn a mild steel rod from 65mm to 58 mm over a length of 100 mm by using a carbide insert. If the approach length and over run length is taken as 5 mm, Cutting speed as 20 m/min and feed is =0.2 mm/rev, and the depth of cut is 0.5mmarrow_forwardIn a machining operation, doubling the cutting speed reduces the tool life to 1/8th of the original value. What is the exponent n in Taylor's tool life equation VTn = C,arrow_forward
- Discuss the impact of current and voltage on machining characteristics in EDM in detailarrow_forward22 .42 List and explain the considerations involved in determining whether a cutting tool should be reconditioned, recycled, or discarded after use.arrow_forwardWhat is difference in turning and boring processes? Explain the difference if any in the equations for cutting speed, material removal rate, and machining timearrow_forward
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