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Posted Date: 29 Jul 2008 Posted By: uday kiran reddy Member Level: Diamond
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2007 Anna University Production II B.Tech II Semester Regular Examinations, Apr/May 2006 Question paper
Code No: RR222002 Set No. 2
II B.Tech II Semester Regular Examinations, Apr/May 2006
MACHINE TOOL ENGINEERING
(Production Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
?????
1. (a) Discuss various types of cutting uids. [8]
(b) Explain about Machineability index. [8]
2. (a) Derive an expression for determining the machining time on lathe. [8]
(b) Find the time required for one complete cut on a piece of work 350mm long
and 50mm in diameter. The cutting speed is 35meters per minute and the
feed is 0.5 mm per rev. [8]
3. (a) What are automatic lathes? Where their use is preferred and why? [6]
(b) Give broad classification of automatic lathes, mentioning their main features.
[10]
4. (a) What are various operations performed on shaper? Explain in detail [8]
(b) Describe constructional features of speed gearbox of slotter? [8]
5. (a) How a drilling machine is specified? [4]
(b) Define and write the formulae of the following for a drilling machine [12]
i. Cutting speed
ii. Feed
iii. Machining time in drilling
6. (a) What are the various methods by which a cam can be cut? [12]
(b) Discuss the effect of the helical tooth on the clearance [4]
7. (a) Explain what is meant by internal centreless grinding ? [6]
(b) Explain with neat sketches various types of internal grinders. [10]
8. (a) Define tools, Jigs and Fixtures in brief. What are their advantages ? [8]
(b) What are the important principles of Jig design? Explain. [8]
?????
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