53113-mt----advances In Manufacturing Technology

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Code No: 53113/MT M.Tech. – I Semester Supplementary Examinations, September, 2008 ADVANCES IN MANUFACTURING TECHNOLOGY (Common to Advanced Manufacturing Systems/ Design for Manufacturing) Time: 3hours

Max. Marks:60 Answer any FIVE questions All questions carry equal marks ---

1.a) b) 2.a) b) 3.a) b)

What is Lever’s rule? Illustrate the use of Lever’s rule to a binary solid solution alloy system. What are the various types of gates ? Explain the application of such gates. What are the various casting defects? How moulding practice can eliminate them? Describe the method of moulding sand flow and control in a mechanized foundry with a schematic diagram. Derive an equation for shear angle in terms of chip thickness ratio & rake angle in orgothogonal machining. Why shear angle is never more than 450 ? How is tool life estimated for HSS and Tungsten carbide tools? Explain.

4.a) With a neat diagram explain the operation of broaching. Give an example of product for which this process is used. b) What are the basic advantages of burnishing process over other super finishing processes? Explain the process of ball burnishing with a neat sketch. 5.a) What type of lasers are suitable for Laser Beam Machining? State the appropriate power requirements for the process. b) What are the various process variables in EDM and how do they affect metal removal rate and surface finish. Contd…2

Code No: 53113/MT

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6.a) Explain any Fused Deposition Method of rapid proto typing with a neat sketch. b) What are basic advantages of rapid prototyping technology? Illustrate the use of this technology with an application. 7.a) What are the various tool wear mechanisms or theories that can explain wear of cutting tools? b) Explain any NDT method of testing the quality of castings. 8.

Write a) b) c)

short notes on: Softwares for mould flow Nano technology and nano materials Homing. *****