Manufacturing Engineering & Technology
Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Chapter 23, Problem 1RQ

Describe the types of machining operations that can be performed on a lathe.

Expert Solution & Answer
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Describe the types of machining operations that can be performed on a lathe.

Explanation of Solution

Lathe machines are highly adaptable and have the capacity to perform numerous machining operations which produce a borad variety of shapes, for example:-

1. Turning: In order to have curved, conical, straight, or grooved workpieces like spindles, shafts, and pins.

2. Facing: In order to produce a flat surface at the end of the part and perpendicular to its axis parts which is assembled with different components? Not to forget face grooving for theapplications as O-ring seats.

3. Cutting with form tools: In order tocreate different axisymmetric shapes for functional purposeor simply for aesthetics.

4. Boring: In order to widen cylindrical cavities or a hole created by anearlier process or to creategroovesthat are circular and are internal.

5. Drilling: In order to produce a holeso asto be followed by boring it for enhancing its dimensional precision as well as its surface finish.

6. Parting: It is known as cutting off as well. This is utilized in order to extract a piece out from the end of a part. The same is done for the manufacturing of slugs or maybe blanks for added processing into discrete products.

7. Threading: In order to create threads that are internalor external.

8 .Knurling: In order to make regular shaped roughness on the cylindrical surfaces, as is the case in producing knobs and handles.

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Students have asked these similar questions
1. In a production turning operation, the cylindrical workpiece is 425 mm long and 190 mm in diameter, Feed 0.30 mm/rev. What cutting speed must be used to achieve a machining time of 7.0 min?
Determine the total machining time for a workpiece 30mm in diameter and the required length is 145 mm. Other data: Material: 38mm dia. X 149 mm Depth of cut (turning): 4mm Depth of cut (facing): 2mm Feed : 0.05 mm/rev : 35 SMPM Cutting speed
(j) In a turning operation on stainless steel with hardness = 200 HB, the cutting speed = 250 m/min, feed = 0.3 mm/rev, and depth of cut = 8 mm. How much power will the lathe draw in performing this operation if its mechanical efficiency = 95%. Use Table below to obtain the appropriate specific energy value.

Chapter 23 Solutions

Manufacturing Engineering & Technology

Ch. 23 - How is drill life determined?Ch. 23 - What is the difference between a conventional...Ch. 23 - Why are reaming operations performed?Ch. 23 - Explain the functions of the saddle on a lathe.Ch. 23 - Describe the relative advantages of (a)...Ch. 23 - Explain how external threads are cut on a lathe.Ch. 23 - Prob. 17RQCh. 23 - Explain the reasoning behind the various design...Ch. 23 - Note that both the terms tool strength and...Ch. 23 - (a) List and explain the factors that contribute...Ch. 23 - Explain why the sequence of drilling, boring, and...Ch. 23 - Why would machining operations be necessary even...Ch. 23 - A highly oxidized and uneven round bar is being...Ch. 23 - Describe the difficulties that may be encountered...Ch. 23 - (a) Does the force or torque in drilling change as...Ch. 23 - Explain the similarities and differences in the...Ch. 23 - Describe the advantages and applications of having...Ch. 23 - Assume that you are asked to perform a boring...Ch. 23 - Explain the reasons for the major trend that has...Ch. 23 - Describe your observations concerning the contents...Ch. 23 - The footnote to Table 23.12 states that as the...Ch. 23 - In modern manufacturing, which types of metal...Ch. 23 - Sketch the tooling marks you would expect if a...Ch. 23 - What concerns would you have in turning a powder...Ch. 23 - The operational severity for reaming is much lower...Ch. 23 - Review Fig. 23.6, and comment on the factors...Ch. 23 - Explain how gun drills remain centered during...Ch. 23 - Comment on the magnitude of the wedge angle on the...Ch. 23 - If inserts are used in a drill bit (see Fig....Ch. 23 - Refer to Fig. 23.11b, and in addition to the tools...Ch. 23 - Calculate the same quantities as in Example 23.1...Ch. 23 - Estimate the machining time required to rough turn...Ch. 23 - A high-strength cast-iron bar 8 in. in diameter is...Ch. 23 - A 0.30-in.-diameter drill is used on a drill press...Ch. 23 - In Example 23.4, assume that the workpiece...Ch. 23 - For the data in Problem 23.45, calculate the power...Ch. 23 - A 6-in.-diameter aluminum cylinder 10 in. in...Ch. 23 - A lathe is set up to machine a taper on a bar...Ch. 23 - Assuming that the coefficient of friction is 0.25,...Ch. 23 - A 3-in.-diameter, gray cast iron cylindrical part...Ch. 23 - Would you consider the machining processes...Ch. 23 - Would it be difficult to use the machining...Ch. 23 - If a bolt breaks in a hole, it typically is...Ch. 23 - An important trend in machining operations is the...Ch. 23 - Review Fig. 23.8d, and explain if it would be...Ch. 23 - Boring bars can be designed with internal damping...Ch. 23 - A large bolt is to be produced from extruded...Ch. 23 - Make a comprehensive table of the process...

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