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Posted Date: 27 Jul 2008 Posted By: vindhya Member Level: Diamond
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2007 Jawaharlal Nehru Technological University Production II B.Tech II Semester Supplementary Examinations, August/September Question paper
II B.Tech II Semester Supplementary Examinations, August/September
2007
MACHINE TOOLS
(Production Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. (a) What are the various forms of wear found in cutting tools? Show with a neat
sketch.
(b) Explain the benefits achieved in metal cutting with the use of cutting fluids.
[8+8]
2. (a) Illustrate the uses of steady rest and follower rest.
(b) Enumerate the various rules which must be followed while laying out the
sequence of operations for a turret lathe. [8+8]
3. (a) What is the difference between a vertical shaper and slotter?
(b) Sketch and write about the principal parts of a double housing planer.
(c) What are the applications of shaping machines in a typical machine shop?
[2+10+4]
4. (a) With help of neat block diagram describe the main parts and working of the
Planer type of horizontal boring machine.
(b) Sketch a twist drill and describe its various elements. [8+8]
5. (a) Sketch and describe a vertical milling machine.
(b) Name any six milling cutters and state the uses of each cutter. [8+8]
6. (a) Discuss the various methods of making grinding wheels.
(b) Describe the dressing and balancing requirements in grinding. [8+8]
7. (a) Sketch and discuss a typical internal broach.
(b) What are the advantages of honing process? [12+4]
8. (a) What are the construction methods of jigs?
(b) What are the advantages and disadvantages of four locating points in a plane?
(c) Discuss the uses liner bushes.
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