Anna University Chennai 2007-2nd Sem B.Tech Production Engineering II Regular s, / 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: three hours Max Marks: 80
ans any 5 ques.
All ques. carry equal marks
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1. (a) explain different kinds of cutting uids. [8]
(b) discuss about Machineability index. [8]
2. (a) Derive an expression for determining the machining time on lathe. [8]
(b) obtain the time needed for 1 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) elaborate automatic lathes? Where their use is preferred and why? [6]
(b) provide broad classification of automatic lathes, mentioning their main features.
[10]
4. (a) elaborate different operations performed on shaper? discuss in detail [8]
(b) define constructional features of speed gearbox of slotter? [8]
5. (a) How a drilling machine is specified? [4]
(b) describe and write the formulae of the subsequent for a drilling machine [12]
i. Cutting speed
ii. Feed
iii. Machining time in drilling
6. (a) elaborate the different methods by which a cam can be cut? [12]
(b) explain the effect of the helical tooth on the clearance [4]
7. (a) discuss what is meant by internal centreless grinding ? [6]
(b) discuss with neat sketches different kinds of internal grinders. [10]
8. (a) describe tools, Jigs and Fixtures in brief. elaborate their advantages ? [8]
(b) elaborate the important principles of Jig design? discuss. [8]
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Earning:   Approval pending.