EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 9780100793439
Author: KALPAKJIAN
Publisher: YUZU
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Textbook Question
Chapter 23, Problem 12RQ
What is the difference between a conventional drill and a gun drill?
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Chapter 23 Solutions
EBK MANUFACTURING ENGINEERING & TECHNOL
Ch. 23 - Describe the types of machining operations that...Ch. 23 - What is turning? What kind of chips are produced...Ch. 23 - What is the thrust force in turning? What is the...Ch. 23 - What are the components of a lathe?Ch. 23 - (a) What is a tracer lathe? (b) What is an...Ch. 23 - Describe the operations that can be performed on a...Ch. 23 - Why were power chucks developed?Ch. 23 - Explain why operations such as boring on a lathe...Ch. 23 - Why are turret lathes typically equipped with more...Ch. 23 - Describe the differences between boring a...
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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- What benefit does tapping on the drill press offer over hand tapping?arrow_forwardDescribe the relation between the letter size drills, fractional sized drills and the numbered drills?arrow_forwardDraw and label the parts of an upright drilling machine. What type of operations can be performed on a drill press?arrow_forward
- 11. With aid of neat sketches, explain the drilling parameters. 12. With aid of neat sketch, explain the main parts of the twist drill cutting tool. 13. With aid of neat sketch, explain the point angle of the twist drill. 14. With aid of neat sketch, explain what is the difference between the counter boring and counter sinking. 15. Define “NC" and "CNC" Terms.arrow_forwardWhen would a radial-arm drill press most likely be used?arrow_forwardWith a neat sketch explain the drill bit nomenclature?arrow_forward
- Is a #6 twist drill larger than a #16 twist drill? What is the diameter of both twisting screws?arrow_forwardRead the sentences given below and Identify the correct statement. Sentence 1. The advantage of a self-centred chuck is that it is easy to work with. Sentence 2. The advantage of an independent chuck is that the work can be centred to high precision. Sentence 1 and 2 are true Sentence 1 is true None of the sentences are true Sentence 2 is truearrow_forwardb. A drilling operation is to be performed with a 13 mm diameter HSS twist drill on a mild steel workpiece that has an overall thickness of 80mm. The hole is to be drilled to a depth of 65 mm. The recommended cutting speed is 0.42 m/s and the feed is 0.30 mm/rev. i) What is the typical point angle of such a drill? ii) Determine the cutting time to complete the drilling operation.arrow_forward
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