MST 502 - Plastics and Composites  
 

Indicative contents

  • Introduction to Plastics: Types of plastics, Properties, Thermoplastic materials, Thermo Setting materials.
  • Plastic Processing Machines: Injection molding machines, compression molding, clamping forces, cycle time, tie bar distance.
  • Mould Construction: Injection mould elements, cores, cavities, and inserts, fitting core and cavity inserts, pillars and bushes.
  • Feed System: Gates, Runners, Impression layout, sprues, mould shrinkage and ejectors.
  • Moulds: Plate mould, hot runner moulds and runner less moulds.
  • Defects In Moulding And Its Remedies.
  • Molding Methods: Extrusion, Blow molding, Forming, calendaring.
  • Simple Exercises In Mould Design.
  • Introduction To Composite Materials: Definition – Classification and Characteristics of composite materials – fibrous composite, laminated composite, particulate composites.
  • Processing: Lay up and curing, fabricating process – open and closed mould process – hand lay up techniques – structural laminate bag moulding, production procedures for bag moulding – filament winding, pulstrusion pulforming, thermoforming, injection, injection moulding, liquid injection moulding, blow moulding.
  • Properties, Classical Lamination Theories, Theories Of Failure.
  • Cutting, Machining And Joining Composites: Cutting, machining, drilling, mechanical fasteners and adhesive bonding, computer aided design and manufacturing tooling, fabrication equipments.
  • Application Of Developments: Aircrafts, missiles, Space hardware, automobile, electrical and electronics, marine, recreational and sports equipments, future potential of composites.
  • Metal Matrix Composites (MMCs): Reinforcement materials, types, characteristics and selection. Base metals selection – need for production MMCs and its application. Fabrication Process for MMCs – Powder metallurgy technique, liquid metallurgy technique and secondary processing. Special fabrication techniques. Study of properties of MMC’s – Physical, Mechanical, wear, machinability and other properties. Effect of size, shape and distribution of particulates on properties. Introduction to shape memory alloys.

 

Module Resources

  • Essential reading
    1. Course notes
    2. Meing Schwaitz, "Composite materials Handbook”, McGraw Hill book company, 1984
    3. William J. Patton – Plastic Technology
  • Recommended Reading
    1. Glanvill & Denton – Injection mould design fundamentals
    2. R. G. W. Pye – Injection mould design
    3. P. K. Rohagti, “Cast Metal Matrix Composites”, ASM Metals Handbook V15, 1989, P840.
    4. “ Forming – Metals Handbook”, 9th Edition, ASM Handbook, V15, 1988, p327-338.
  • Journals
  • Magazines
  • Internet Sites
  • Multimedia CDs
  • Laboratory