Moulding sands - Types and Properties, patterns - types of patterns, selection of patterns - pattern allowances - Classifications of castings - according to mould materials, and moulding methods, special casting techniques - Fettling and finishing of castings - defects in castings.
Classification of welding process: Principle of Gas welding, Arc welding, resistance welding, Solid State Welding, Thermochemical welding and radiant energy welding - Brazing and soldering - thermal cutting of metal/alloys.
Forging: Classification of forging processes - forging processes - forging defects and inspection. Rolling: Classification of rolling processes - rolling mill - rolling of bars and shapes. Extrusion: Classification of extrusion processes - extrusion equipments - examples.
Drawing: Drawing of rods, wires and tubes. Sheet metal forming methods: Shearing, Blanking , Bending , Stretch Forming , deep forming. Spinning: Spinning processes.
High Velocity Forming : Explosive forming , Electro hydraulic forming - magnetic pulse forming - pneumatic - mechanical high velocity forming. Plastics Working: Types of plastics - plastic moulding processes.
References:
Jain R.K., Production Technology, Khanna Publishers, 2001
Hajra Choudhry, Elements of Workshop Technology, Vol – II Dhanpat Rai & Sons, 1992.
HMT Production Technology, Tata Mc Graw-Hills Publishing Co. Limited, 1994.
Chapman, W.A.J., Workshop Technology, Vol - II, Oxford & IBH Publishing Co. Ltd., 1986.
