AE 303

PRODUCTION TECHNOLOGY

UNIT – I               

Metal Casting Moulding sand, properties, moulding methods, moulding machines, patterns, types of patterns, pattern materials, pattern allowances, steps involved in making a casting.

Special casting processes – Shell moulding, CO₂ process, Continuous casting, die casting, investment casting, centrifugal casting, centrifuging, Defects in casting, causes and remedies.

UNIT – II             

Metal Joining Classification of welding process, Electrode and its specification, Oxy acetylene gas welding, types of flames, oxy acetylene gas cutting.

Arc welding processes – SMAW,  SAW, GMAW, TPA, atomic hydrogen welding, plasma arc welding.  Solid state welding processes – friction welding, forge welding, explosive welding, ultrasonic welding.

Resistance welding processes – Spot, projection, seam, butt, upset and flash welding process.  Introduction to soldering, brazing, braze welding.  Defects in welding, causes and remedies. 

UNIT – III            

Metal Forming stress -   Strain in elastic and plastic deformation, hot working, cold working.

Rolling - Principle of rolling, types of rolling mill, two high rolling mill, three high rolling mill, cluster rolling mill, planetary roll mill, advantages and limitations of rolling.

Forging – Principle of forging, forging operations, types of forging – Smith forging, drop forging, press forging, machine forging, advantages and limitations of forging.

Extrusion -  Principle of extrusion, forward extrusion, backward extrusion, tube extrusion, hydrostatic extrusion, impact extrusion.

Drawing - Principle of drawing, wire drawing, tube drawing.

Sheet metal working - Blanking, piercing, bending and deep drawing.

Processing of plastics - Blow moulding and injection moulding.

UNIT – IV           

Metal cutting and Machine Tools – Elements of cutting process, cutting tool materials and its properties, nomenclature and geometry of single point cutting tool, chip formation, types of chips, chip breakers.

Machining Orthogonal and oblique cutting, Merchant analysis, tool life, cutting fluids, Machinability.

UNIT – V             

Machine Tools – Lathe- Principle of working, specification, types, operations performed.  Lathe attachments, work holding and tool holding devices, taper turning methods – tail stock set over method, compound swivel method, special attachment method,.  Capstan and turret lathes.

Types – Specification, working principle, operations performed in shaping, slotting, milling, planning, drilling and boring  machines.  Introduction to lapping, honing and super finishing operations.                                                                                                                                               

Suggested Reading

1. 1.P.N. Rao, Manufacturing Technology, Tata McGraw Hill Publishers, 2^nd Edition, 1990
2. 2.Amitaba Ghosh, Malik, Manufacturing Science, Assoc. East West Press Pvt. Limited, 4^th Edition, 1991.
3. 3.Roy A Lindberg, Materials & Processes of Manufacturing, Prentice Hall of India, 5^th Edition, 1992.
4. 4.Serope Kalpakjain, Manufacturing Engineering and Technology, Addison Wesley Publishing Company.
5. 5.P.N. Rao, Manufacturing Technology – Metal Cutting & Machine Tools, Tata Mc.Graw Hill Publishers, 2^nd Edition, 1990.