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 21, Problem 3RQ
Which of the seven basic chip formation processes are single point, and which are multiple point?
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44. In Orthogonal Cutting Model, why chip thickness after cut is greater than chip thickness before cut? explain.
What is the effect of rake angle (ranging from highly +ve to –ve) on chip formation, cutting force and power requirements?
4:(a).
In Orthogonal Cutting Model, why chip thickness after cut is greater than chip thickness before
Chapter 21 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 21 - Why has the metal-cutting process resisted...Ch. 21 - What variables must be considered in understanding...Ch. 21 - Which of the seven basic chip formation processes...Ch. 21 - How is feed related to speed in the machining...Ch. 21 - Before you select speed and feed for a machining...Ch. 21 - Milling has two feeds. What are they, and which...Ch. 21 - What is the fundamental mechanism of chip...Ch. 21 - What is the difference between oblique machining...Ch. 21 - What are the implications of Figure 21.13, given...Ch. 21 - Note that the units for the approximate equation...
Ch. 21 - For orthogonal machining, the cutting edge radius...Ch. 21 - How do the magnitude of the strain and strain rate...Ch. 21 - Why is titanium such a difficult metal to machine?...Ch. 21 - Explain why you get segmented or discontinuous...Ch. 21 - Why is metal cutting shear stress such an...Ch. 21 - Which of the three cutting forces in oblique...Ch. 21 - How is the energy in a machining process typically...Ch. 21 - Where does the energy consumed in metal cutting...Ch. 21 - What are two ways of estimating the primary...Ch. 21 - What are the three different ways to perform...Ch. 21 - Why does the cutting force Fc increase with...Ch. 21 - Why doesnt the cutting force Fc increase with...Ch. 21 - Prob. 23RQCh. 21 - How does the selection of the machining parameters...Ch. 21 - Suppose you had a machining operation (boring)...Ch. 21 - Make a sketch like that shown in Figure 21.1 with...Ch. 21 - Show how you would do near orthogonal machining in...Ch. 21 - Can you do orthogonal machining on a shaper or...Ch. 21 - What process and material combination would yield...Ch. 21 - What is meant by the statement that machining...Ch. 21 - Prob. 31RQCh. 21 - Figure 21.4 provides suggested cutting speeds and...Ch. 21 - For problem 1, suppose you selected a speed of 145...Ch. 21 - If the cutting forces is 1000 lb calculate the...Ch. 21 - Explain how you would estimate the cutting force...Ch. 21 - For a turning operation, you have selected a...Ch. 21 - For a slab milling operation using a...Ch. 21 - The power required to machine metal is related to...Ch. 21 - In order to drill a hole in the material described...Ch. 21 - Suppose you have the data in Table 21.A obtained...Ch. 21 - Calculate the horsepower that a process is going...Ch. 21 - Explain how you would estimate the cutting force...Ch. 21 - Derive equations for F and N using the circular...Ch. 21 - Prob. 14PCh. 21 - Prob. 15PCh. 21 - A manufacturing engineer needs an estimate of the...Ch. 21 - Using Figure 21.4 for input data, determine the...Ch. 21 - Estimate the horsepower needed to remove metal at...Ch. 21 - For a turning process, the horsepower required was...
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- Question: 3 a. Differentiate clearly between the three different categories of material removal processes.b. What is the effect of rake angle (ranging from highly +ve to –ve) on chip formation, cutting forceand power requirements?c. Describe the ideal chip type.d. What are the effects of performing a cutting operation with a dull tool tip? A very sharp tip?arrow_forwardQ:3 i. Differentiate clearly between the three different categories of material removal processes.ii. What is the effect of rake angle (ranging from highly +ve to –ve) on chip formation, cutting force and power requirements?iii. Describe the ideal chip type.iv. What are the effects of performing a cutting operation with a dull tool tip? A very sharp tip?arrow_forwardWill a single-cut or a double-cut file produce a smoother surface?arrow_forward
- process of chip formation, thickness (undeformed and deformed chips), the ratio of furious (chips ratio) and the form if chip. Using lathearrow_forwardWhich option about chief elements in metal cutting is wrong? a)Chip width is the distance between D and d along the cutting surface b)The cutting speed is expressed in mm per revolution c)Feed s is the tool distance moved along the axis per revolution of the work d)Depth of cut t is the distance between D and darrow_forwardIn an orthogonal cutting test, the cutting force and thrust force were observed to be 1000N and 500 N respectively. If the rake angle of tool is zero, What is the coefficient of friction in chip-tool interface ?arrow_forward
- A mild steel block of width 40 mm is being milled using a straight slab cutter 70 mm diameter with 30 teeth. If the cutter rotates at 40 rpm, and depth of cut is 2 mm, what is the value of maximum uncut chip thickness when the table feed is 20 mm/min?arrow_forwardAssume that, in orthogonal cutting, the rake angle is 20 and the friction angle is 35 at thechip-tool interface. Determine the percentage change in chip thickness when the frictionangle is 50. Note that Merchant’s equation is more preferable.arrow_forwardWhat is tool coating?arrow_forward
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