ME-202 E MANUFACTURING TECHNOLOGY
ME-202 E MANUFACTURING TECHNOLOGY
Sessional : 50 Marks
Theory : 100 Marks
Unit I Metal Casting Processes: Advantages and limitations, sand mold making procedure. Patterns and Cores: Pattern materials, pattern allowances, types of pattern, color coding. Molding materials: Molding sand composition, sand preparation, sand properties and testing, Sand molding processes
Unit II Cores: Types of cores, core prints, chaplets, and chills. Gating systems: Gates and gating systems risers. Melting practice: Cupola, charge calculations. Casting cleaning and casting defects, Fettling, defects in castings and their remedies, methods of testing of castings for their soundness.
Unit III Special Casting Processes: Shell molding, precision investment casting, permanent mold casting, die casting, centrifugal casting, continuous casting,
Unit IV Metal Forming Processes: Nature of plastic deformation, hot working and cold working .Principles of rolling, roll passes, roll pass sequences. Forging: Forging operations, smith forging, drop forging, press forging, forging defects.
Unit V Extrusion and other processes: Extrusion principle, hot extrusion, cold extrusion, wire drawing, swaging, tube making. Sheet metal operations: Press tools operations, hearing action, drawing dies, spinning, bending, stretch forming, embossing and coining.
Unit VI Gas and Arc Welding: Classification: oxy- acetylene welding equipment and techniques. Electric arc welding: Electrodes, manual metal arc welding, inert gas shielded arc welding, tungsten inert gas welding (TIG), metal inert gas welding(MIG), submerged arcwelding (SAW).
Unit VII Resistance Welding: Principles, resistance spot welding, resistance seam welding, upset welding, flash welding,
Unit VIII Other Welding Processes: Introduction thermit welding, electro slag welding, electron beam
welding, forge welding, friction welding, diffusion welding, brazing and soldering.
Text Books:
1. Principles of Manufacturing Materials & Processes – Campbell J. S., Publisher – Mc Graw Hill.
2. Manufacturing Science – Ghosh A; Mallik A.K. Affiliated East-West Press Pvt. Ltd., New Delhi
Reference Books:
1. Foundry Technology – K.P. Sinha, D.B. Goel, Roorkee Publishing House.
2. Welding and Welding Technology, Richard L. Little Tata McGraw Hill Ltd.
3. Principle of Metal casting – Rosenthal, Tata McGraw Hill, New Delhi
4. Manufacturing Processes and Systems: Ostwald Phillip F., Munoz Jairo, John Wiley & Sons
5. Manufacturing Technology-Foundry, Forming and Welding – P.N. Rao, Tata McGraw Hill
6. Elements of Manufacturing Processes – B.S. Nagendra Parasher, RK Mittal, PHI N. Delhi
Note: In the semester examination, the examiner will set 8 questions, at least one question from each unit, and students will be required to attempt only 5 questions.
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