Machine Tool Practices (10th Edition)
10th Edition
ISBN: 9780132912655
Author: Richard R. Kibbe, Roland O. Meyer, Warren T. White, John E. Neely, Jon Stenerson, Kelly Curran
Publisher: PEARSON
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Textbook Question
Chapter B.3, Problem 9ST
A new hacksaw blade should not be used in a cut started with a blade that has been used. Why?
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Check out a sample textbook solutionStudents have asked these similar questions
18 ) In a multi point cutting tool the negative rake angle is used for high tensile strength materials.
Select one:
True
False
22.48 H ow would you go about measuring the effectiveness of cutting fluids? Describe your method and explain any difficulties that you might encounter.
2) State whether or not the following statements are true for orthogonal cutting,
explaining your reasons:
a. For the same shear angle, there are two rake angles that give the same
cutting ratio.
b. For the same depth of cut and rake angle, the type of cutting fluid used has
no influence on chip thickness.
c. If the cutting speed, shear angle, and rake angle are known, the chip
velocity can be calculated.
d. The chip becomes thinner as the rake angle increases.
e. The function of a chip breaker is to decrease the curvature of the chip.
Chapter B Solutions
Machine Tool Practices (10th Edition)
Ch. B.1 - Why is it important to know how to use the arbor...Ch. B.1 - What kinds of arbor presses are made? What makes...Ch. B.1 - List several uses of the arbor press.Ch. B.1 - A newly machined steel shaft with an interference...Ch. B.1 - The ram of an arbor press is loose in its guide...Ch. B.1 - When a bushing is pushed into a bore that is...Ch. B.1 - Prob. 7STCh. B.1 - What difference is there in the way a press fit is...Ch. B.1 - Prior to installing a bushing with the arbor...Ch. B.1 - Name five ways to avoid tool breakage and other...
Ch. B.2 - Prob. 1STCh. B.2 - Name two types of bench visesCh. B.2 - Prob. 3STCh. B.2 - Prob. 4STCh. B.2 - How can the finished surface of a part be...Ch. B.2 - Name three things that should never be done to a...Ch. B.2 - How should a vise be Lubricated?Ch. B.2 - Prob. 8STCh. B.2 - Prob. 9STCh. B.2 - Prob. 10STCh. B.2 - Prob. 11STCh. B.2 - What advantage does the lever-jawed wrench offer...Ch. B.2 - Prob. 13STCh. B.2 - Some objects should never be struck with a hard...Ch. B.2 - A machine has a capscrew that needs to be...Ch. B.2 - Why should pipe wrenches never be used on bolts,...Ch. B.2 - What are the two important things to remember...Ch. B.3 - What is the kerf?Ch. B.3 - What is the set on a saw blade?Ch. B.3 - What is the pitch of the hacksaw blade?Ch. B.3 - What determines the selection of a saw blade for a...Ch. B.3 - Hand hacksaw blades fall into two basic...Ch. B.3 - What speed should be used in hand hacksawing?Ch. B.3 - Give four causes that make saw blades dull.Ch. B.3 - Give two reasons why hacksaw blades break.Ch. B.3 - A new hacksaw blade should not be used in a cut...Ch. B.3 - What dangers exist when a hacksaw blade breaks...Ch. B.4 - Prob. 1STCh. B.4 - What are the four different cuts found on files?Ch. B.4 - Name four coarseness designations for files.Ch. B.4 - Which of the two kinds of files-single cut or...Ch. B.4 - Why are the faces of most files slightly convex?Ch. B.4 - What difference exists between a mill file and an...Ch. B.4 - In what way does an American pattern file differ...Ch. B.4 - What are the coarseness designations for needle...Ch. B.4 - Why should files be stored so do not touch each...Ch. B.4 - Prob. 10STCh. B.4 - What causes a file to get dull?Ch. B.4 - Why should a handle be used on a file?Ch. B.4 - Prob. 13STCh. B.4 - Prob. 14STCh. B.4 - How does the hardness of a workpiece affect the...Ch. B.4 - Prob. 16STCh. B.4 - Should pressure be applied to a file on the return...Ch. B.4 - Why is a round file rotated while it is being...Ch. B.5 - Prob. 1STCh. B.5 - What is the purpose of a starting taper on a...Ch. B.5 - What is the advantage of a spiral flute reamer...Ch. B.5 - How does the shank diameter of a hand reamer...Ch. B.5 - Prob. 5STCh. B.5 - Prob. 6STCh. B.5 - What is the purpose of cutting fluid in reaming?Ch. B.5 - Prob. 8STCh. B.5 - How much reaming allowance is left for hand...Ch. B.5 - If you were repairing the lathe tailstock taper,...Ch. B.6 - What type of tap is used to produce threads that...Ch. B.6 - Prob. 2STCh. B.6 - Prob. 3STCh. B.6 - When is a spiral fluted tap used?Ch. B.6 - How are thread-forming taps different from...Ch. B.6 - How are taper pipe taps identified?Ch. B.6 - Why are finishing and roughing Acme taps used?Ch. B.6 - Why are rake angles varied on taps for different...Ch. B.6 - Prob. 9STCh. B.6 - Prob. 10STCh. B.7 - What kind of tools are used to drive taps when...Ch. B.7 - What is a hand tapper?Ch. B.7 - What is a tapping attachment?Ch. B.7 - Which three factors affect the strength of a...Ch. B.7 - How deep should the usable threads be in a tapped...Ch. B.7 - When should tap drill holes be reamed?Ch. B.7 - What causes taps to break while tapping?Ch. B.7 - What causes rough and tom threads?Ch. B.7 - What causes oversized threads in a hole?Ch. B.7 - Give three methods of removing broken taps from...Ch. B.8 - What is a die?Ch. B.8 - What tool is used to drive a die?Ch. B.8 - How much adjustment is possible with a round split...Ch. B.8 - What is the purpose of the guide in a two-piece...Ch. B.8 - What are important points to watch when assembling...Ch. B.8 - Where are hexagon rethreading dies used?Ch. B.8 - Why do dies have a chamfer on the cutting end?Ch. B.8 - Why are cutting fluids used?Ch. B.8 - What diameter should a rod be before being...Ch. B.8 - Why should a rod be chamfered before being...Ch. B.9 - What is the primary function of the pedestal...Ch. B.9 - Why should a tool grinder never be used for rough...Ch. B.9 - Prob. 3STCh. B.9 - When sharpening layout tolls and other tools, what...Ch. B.9 - Prob. 5STCh. B.9 - Prob. 6STCh. B.9 - Prob. 7STCh. B.9 - What is the purpose of the wheel blotter?Ch. B.9 - Prob. 9STCh. B.9 - What does the wheel ring test do?
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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
- 2 1.25 The cutting force increases with the depth of cut and decreasing rake angle. Explain why.arrow_forward22.3 Why were cutting-tool inserts developed?arrow_forwardQuestion 4. The following data are available from orthogonal cutting experiments. The depth of cut (feed) to = 0.13 mm, width of cut b = 2.5 mm, rake angle a = - 5°, and cutting speed V = 2 m/s. Chip thickness, t. (mm) = 0.23 Cutting force, F. (N) = 430 Thrust force, F; (N) = 280 Determine the shear angle ð, friction coefficient u , shear stress t, shear strain y on the shear plane, chip velocity Ve, and shear velocity Vs, as well as energies uf ,Ug, and uarrow_forward
- 21.28 What are the effects of performing a cutting operation with a dull tool? A very sharp tool?arrow_forward17) A50-mm-dia endmill cuts 6061 aluminum with 30% tool engagement at a depth of 6 mm. The tool rotates at 200 rpm and is feeding at 250 mm/min. There are 2 teeth set at a rake angle of 10°. a. Calculate the required power of cutting. b. Determine the spindle torque. c. Determine the cutting force on each tooth. d. If the thrust force is measured to be 350N, estimate the tool-chip interface friction coefficient. How could you physically verify your power estimate?arrow_forwardIn orthogonal cutting if the depth of cut is a 1.25 mm and chip thickness after cutting is 2 mm, determine the following: i.Chip thickness ratio. ii.Shear angle. If rake angle is 10.arrow_forward
- What is the cutting speed of a medium carbon steel which cutting stroke per minute is 80 and which length is 10".arrow_forwardQuestion 3. State whether or not the following statements are true, explaining your reasons: 3.a. For the same shear angle, there are two rake angles that give the same cutting ratio, 3.b. For the same depth of cut and rake angle, the type of cutting fluid used has no influence on chip thickness, 3.c. If the cutting speed, shear angle, and rake angle are known, the chip velocity can be calculated, 3.d. The chip becomes thinner as the rake angle increases, 3.e. The function of a chip breaker is to decrease the curvature of the chip.arrow_forwardA single-point cutting tool with 12° rake angle is used to machine a steel work-piece. The depth of cut, i.e. uncut thickness is 0.81 mm. The chip thickness under orthogonal machining condition is 1.8 mm. What is the shear angle.arrow_forward
- What is the stroke per minute of a mild steel which cutting speed is 200 fpm having a total length of 16".arrow_forwardChoose the right answer - In turning, the cutting force that increases by decreasing depth of cut is Axial force Tangential force Radial forcearrow_forwardWrite TRUE is the statement/s is True. If the statement is false, identify the word/s that makes the sentence incorrect and write its corresponding correct answer. 16. since the thickness of chips is always greater than the depth of cut, chip compression ratio is àways less than 1.0. 17. Inserts have multiple cutting points. 18. Free Machining steels are non-ferrous metals which contain sulfur and phosphorus.arrow_forward
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