Rajasthan Technical University 2010 B.Tech Mechanical Engineering Manufacturig Science & Technology - Question Paper
RTU Manufacturig Science & Technology
Rajasthan tech. University
B.tech six sem (Main/back)
Year June 2010
Holt No.__IToial No. of Paget :Q
B.Tech. Vlth Semester (Main/Back) Examination, June 2010 Mechanical Engineering 6MF3 Manufacturing Science & Technology
Time : 3 Hours Maximum Marks : HO
Min. Passing Marks : 24
Instructions to Candidates:
Attempt any five questions selecting one question from each unit. AH questions carry equal marks (Schematic diagrams must he shown wherever necessary. Any data you feet missing may suitably he assumed and stated dearly. Units of quantities used/calculalcd must he stated clearly.)
Unit-!
Explain 3*2*1 principle of locating a part from external surface. Explain with neat sketches, how a pan can be located from holes? (8+8)
OR
Describe (he materials used and their suitability forjigs and fixtures? Explain various turning futures. (8+8)
U.lt-H
2. a) Explainspecificapplicarionsofnewmachiningmcthods. (6)
b) Explain Abrasive Jet machining and its process characteristics. (6+4)
OR
a) lixpiainworkingofLaserBeammachiningwithncatsketch. (8)
b) Give a comparison of various new machining methods based on material removal rate, process mechanism, power consumption, application, tool material, accuracy etc. (8)
6E3051/W35OO
|Contd...
(I)
UnJf-III
3. Explain2wiremethodofeflfectivediafnetcrme&surementofascrewthread. Explain' RMS value andCLA value of surface roughness. (10+6)
OR
List the applications ofcomparators. Explain the working of an autocol limator.
(6+10)
Unit-IV
4. Explain the functions of rake angle, tool angle and cutting angle. Derive the formula for various force components on a single point cutting too! in orthogonal cutting.
(6+10)
OR
Explain the angle of contact and force analysis for a slab milling cutter. Explain dimensional analysis for force in a milling cutter. (8+8)
Unit-V
5. What are the requirements of a lathe bed? Describe various bed sections of a lathe and their applications. Explain the use of reinforcing stiffeners. (4+8+4)
OR
Explain the theoretical aspects of design ofguideways. Explain antifriction guideways with neat sketches. (8+8)
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| Earning: Approval pending. |
