3ME4-MANUFACUTRING PROCESSES |
Units: I |
Importance of manufacturing, economic and technological definition of manufacturing, survey of
manufacturing processes.
Foundry Technology: Patterns practices: Types of patterns, allowances and material used for
patterns, moulding materials, moulding sands, Moulding sands; properties and sand testing; grain
fineness; moisture content, clay content and permeability test, core materials and core making, core
print; core boxes, chaplets, gating system design. Moulding practices: Green, dry and loam sand
moulding, pit and floor moulding; shell moulding; permanent moulding; carbon dioxide moulding.
Casting practices: Fundamental of metal casting, sand casting, Shell-Mould casting, mold casting
(plaster and ceramic), investment casting, vacuum casting, Permanent mould casting, slush casting,
pressure casting, die casting, centrifugal casting, continuous casting, squeeze casting, casting alloys,
casting defects, design of casting, gating system design, and riser design. Melting furnaces-rotary, pit
electric, tilting and cupola.
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Units: II |
Metal Joining Processes: Principle of welding, soldering, brazing and adhesive bonding. Survey of
welding and allied processes. Arc welding: power sources and consumables. Gas welding and cutting:
Processes and equipments. Resistance welding: principle and equipments. Spot, projection and seam
welding process. Atomic hydrogen, ultrasonic, plasma and laser beam welding, electron beam
welding, and special welding processes e.g. TIG, MIG, friction and explosive welding, welding of C.I.
and Al, welding defects. Electrodes and Electrode Coatings |
Units: III |
Forming and Shaping Processes: Metal working, elastic and plastic deformation, concept of strain
hardening, hot and cold working, rolling, principle and operations, roll pass sequence, forging, forging
operations, extrusion, wire and tube drawing processes. Forging: Method of forging, forging hammers
and presses, principle of forging tool design, cold working processes-Shearing, drawing, squeezing,
blanking, piercing, deep drawing, coining and embossing, metal working defects, cold heading,
riveting, thread rolling bending and forming operation.
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Units: IV |
Powder Metallurgy: Powder manufacturing, mechanical pulverization, sintering, Electrolytic Process,
chemical reduction, atomization, properties of metal powders, compacting of powders sintering,
advantages and applications of P/M.
Rapid Prototyping Operations: Introduction, subtractive processes, additive processes, Virtual
Prototyping and applications
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Units: V |
Plastic Technology: Introduction, Classification of Plastics, Ingredients of Moulding compounds,
General Properties of Plastics, Plastic part manufacturing processes such as compression moulding,
transfer moulding, injection moulding, extrusion moulding, blow moulding, calendaring, thermoforming,
slush moulding, laminating
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