MF3002 Plastics Product Design Syllabus:
MF3002 Plastics Product Design Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
• To understand the concepts and features of Plastic Product design.
• To understand design requirements for manufacturing process
• To learn the basic concepts of designing with plastics for various loading applications, structural elements and joints.
• To understand the concepts of composite product design.
• To understand various assembly features in plastic product design
UNIT I PRODUCT DESIGN REQUIREMENT
Introduction to Product Design – Principles & Methodical approach for Product Design – Design Process – Material selection – Process selection – Safety Factors in Product Design – Product Design Appraisal- Geometric Dimensioning and Tolerances on Product-Product Design criteria – Structural, Environmental, Assembly, Aesthetics & Decoration- Design for Manufacture & Assembly (DFMA)- Tooling Aspects on Product Design – Cost Analysis for Product Design.
UNIT II PRODUCT DESIGN FEATURES
Wall thickness – variations in wall thickness – suggested wall thickness for various plastics materials – Taper & Draft – Design of radii, fillets, ribs and bosses- Shrinkage – Fits &Tolerances- External & Internal Undercuts
UNIT III HOLES & THREADS
Moulded Holes & its types – Drilled and tapped holes- Hinges – Types – Design of Integral hinges. Moulded threads – thread types- Inserts – materials – selection of metal for inserts – location of inserts in the part – moulded inserts – pressed in inserts.
UNIT IV ASSEMBLY FEATURES
Part Consolidation-Mechanical Fasteners- Snap Fits Joints- Snap Fit Theory, Annular and Torsional Snap fits, Assembly Procedures and Issues with Snap Fits- Welding –Ultrasonic Welding, Vibration and Hot-Plate Welding, Spin Welding- Bonding – Solvent and Adhesive Bonding-Retention Features-Alignment Features- Orientation-Expansion Differences- Tolerances – Introduction to Inmould Assembly.
UNIT V DESIGN FOR COMPOSITES
Design Criteria for Composites- Cost, Size, Mechanical Properties, Repeatability and Precision, Damage Tolerance and Durability, Environmental Constraints – Design allowables- Need for Design allowables- development of design allowables- Important factors that affect the selection of allowables – Specific techniques used in the statistical development of allowable values.
TOTAL : 45 PERIODS
COURSE OUTCOMES:
Upon completion of this course the student will be able to
• Apply the knowledge and principles of basic product design
• Apply plastics product design for various applications.
• Apply for structural elements design
• Apply composite product design
• Apply various assembly features in plastics product design
TEXT BOOKS:
1. Robert A. Malloy, “Plastic Part Design for Injection Molding: An Introduction”, 2nd Edition, Hanser Publishers 2010.
2. R.D.Beck “Plastics Product Design”, Van Nostrand Reinhold, New York,1980
REFERENCES:
1. Belofsky, H, “Plastics Product Design and Processing Engineering, Hanser Publishers, Munich Vienna New York, 1994.
2. Sidney levy J. Harry Dubois, “Plastics Product Design Engineering Hand Book”, 3. Second Edition, Chapman and Hall Ltd, 1984
4. Paul A. Tres, “Designing Plastic Parts for Assembly”, 2nd Revised Edition, Hanser Publishers, Munich Vienna New York, 1994
5. Alfredo Campo E. “The Complete Part Design Handbook for Injection Molding of Thermoplastics”, Hanser Publishers, Munich, 2006
6. Daniel B. Miracle and Steven L. Donaldson “Composites” Volume 21, ASM Handbook,ASM International, 2001.
7. P.K. Mallick, “Fiber-Reinforced Composites: Materials, Manufacturing, and Design”, Third Edition, CRC Press 2007
8. N G Mc Crum, Principles of Polymer Engineering, Oxford Science Publications, New York, 1997.