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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QUESTION 2
Tool life is the most important factor in the evaluation of machinability. Tool life can be defined
as the period of time which the tool cuts effectively and efficiently. A cutting tool should have
a long tool life. On the other hand, the cutting speed decreases the tool life due to the abrasive
action that occurs between the cutting tool and materials. The increase in cutting speed will
decrease the machining time, thus reduce the total machining cost. Justify what actions should
be taken to increase the tool life and at the same time shorten the machining time.
Fast please
Solve step by step please thank you
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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- Draw ten power tools that you know and give at least one function for each tool using your own words.arrow_forwardQuestion: Determine the optimum cutting speed for an operation on a Lathe machine using the following information: Tool change time: Tool regrinds time: 3 min Machine running cost Re.0.50 per min Depreciation of tool regrinds Rs. 5.0 The constants in the tool life equation are 60 and 0.2 3 minarrow_forwardThe tool life equation for HSS tool is VTO.14f 0.7d0.4 = Constant. The tool life (T) of 30 min is obtained using the following cutting conditions: V = 45 m/min, f = 0.35 mm, d = 2.0 mm If speed (V), feed (f) and depth of cut (d) are increased individually by 25%, the tool lifearrow_forward
- In tool-wear relationship, n is an exponent that depends on workpiece and tool material as well as cutting conditions. When the tool is made from carbides, n is in the range of __________ . Group of answer choices 0.08-0.2 0.1-0.15 0.5-0.7 0.2-0.5arrow_forward(a) Taylor's equation is used to predict the life of a tool. Explain the main parameters that effect a tool life with the help of a graph.arrow_forwardSolve fast pleasearrow_forward
- urgentarrow_forwardThe tool life equation for HSS tool is VT0.14f 0.7d 0.4 = Constant. The tool life (T) of 20 min is obtained using the following cutting conditions: V = 40 m/min, f = 0.30 mm, d = 2.0 mm If speed (V), feed (f) and depth of cut (d) are increased individually by 25% . Calculate the tool life.arrow_forward2 1.4 1 The Taylor tool-life equation is directly applicable to flank wear. Explain whether or not it can be used to model tool life if other forms of wear are dominant.arrow_forward
- Step by step solution pleasearrow_forwardIn a drilling operation under a given condition, the tool life found to decrease from 20 mint to 5 mint due to increase in drilling speed from 200 rpm to 400 rpm. What will be the tool life of that drill under the same condition if the drill speed is 300 rpm.arrow_forwardI need answer as soon as possiblearrow_forward
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