6th Sem, Tool & Die Diploma

22263: Plastic Molding Technology Tool & Die 6th Sem Syllabus for Diploma TNDTE M Scheme

Plastic Molding Technology detail TNDTE Diploma syllabus for Mechanical Engineering (Tool & Die) (T&D), M scheme is extracted from TNDTE official website and presented for diploma students. The course code (22263), and for exam duration, Teaching Hr/week, Practical Hr/week, Total Marks, internal marks, theory marks, duration and credits do visit complete sem subjects post given below. The syllabus PDFs can be downloaded from official website.

For all other tool & die 6th sem syllabus for diploma m scheme tndte you can visit Tool & Die 6th Sem Syllabus for Diploma M Scheme TNDTE Subjects. The detail syllabus for plastic molding technology is as follows.

Rationale:

Plastic plays an important role in the present day industrial products and for the manufacture of plastic components lot of moulds are used. Hence Considering the immense potential in the fields of Plastic processing, mould design, making and maintenance, it is essential to understand the basics of plastic materials, processing and moulding technology adopted to convert the raw plastic material into desired products.

Objectives:

  • Familiarise different plastics materials and their properties
  • Familiarise of the conventional injection-moulding machine types, their specification,operation terminology and their parts.
  • Compare different moulding processes used in industries, their application
  • Explain the design procedure for injection moulding.
  • Explain the design procedure for compression moulding
  • Explain the concepts in the design of blow moulds.
  • Appreciate the decoration techniques, plating techniques used for plastic components.
  • Explain the working of injection moulding machine
  • Understand the intermediate injection moulding design concepts

Detailed Content:

Unit I

For complete syllabus and results, class timetable and more pls download iStudy Syllabus App. It’s a lightweight, easy to use, no images, no pdfs platform to make students life easier.

Unit II

Injection Moulding machine, injection mould and its functional systems

  1. Injection Moulding Machines: Basic parts and functioning of an injection moulding machine. Types of injection moulding machine (Screw type & Plunger Type) – Single stage and two stage – Clamping unit (Toggle & Hydraulic) -Types of nozzles – Typical injection. Moulding cycle, Cycle time – Machine specifications (Definition only ) .
  2. Injection Mould: – Terms used in connection with injection moulds, classification of moulds, Functions of the injection moulds.
  3. Functional systems of injection mould – Sprue and runner system –Runner, Cross section shape, Runner size, Runner layout – Gates, Necessity, Centre gate, Edge gate, Balanced gating, Types of Gates.

    4. Core and Cavity- Shrinkage calculation – Core and cavity dimension.

    Parting surface: Flat Parting surface – Non flat parting surface – Venting – Mould clamping – direct, indirect.

  4. Cooling System – Cooling Integer type cavity plates – Cooling integer type core plate – Cooling bolster – Cooling cavity inserts -Cooling core inserts -Water connection and seals . (Concept & Description of design only)
  5. Ejection system: Ejector grid – Ejector plates assembly – Ejector rod, Ejector plate and ejector retaining plate – Methods of Ejection – Ejection from fixed half- Sprue puller.

Unit III

Injection Mould Design & Intermediate Moulds

  1. -Basic procedure for mould design – Determination of mould size -Maximum number of cavities, Clamping force , Maximum clamping area,

    2. Required opening stroke. Computation of number of cavities, cavity layouts, number of parting lines, Design of runner and gate.

  2. Intermediate Moulds: Moulding external undercuts-Split mould – Finger cam, dog leg cam & track. Hydraulic & spring actuation of split –

    3. Side core and side cavity, Methods of actuation – Mould with internal undercut : Form pin, actuation, split core, jumping off – Mould for threaded component: Manual & automatic unscrewing methods hand mould for rotating & lose core methods -Multi day light mould – Under feed mould – Triple day light mould – Hot runner unit mould, Advantages and Limitations, Hot runner nozzles & sprue, runner less mould – Materials for Injection Mould – Standard Mould systems, Advantages and limitations (Concept & Description of design only .).

  3. Alignment of Moulds: Functions of alignment, alignment with the axis of the plasticating unit, internal alignment and interlocking, alignment of large moulds. Changing of moulds – system for a quick change of moulds for thermoplastics, mould exchanger for elastomer moulds.

Unit IV

For complete syllabus and results, class timetable and more pls download iStudy Syllabus App. It’s a lightweight, easy to use, no images, no pdfs platform to make students life easier.

Unit V

Plastic Product Design, Decoration of Plastic Products and Maintenance & Repair of Injection Moulds:

  1. Plastic Product Design: Wall thickness – Ribs and profiled structures -Gussets or support ribs – Bosses – Holes – Radii & Corners – Tolerances -Coring – Undercuts – Draft angle.
  2. Decoration of Plastic Parts: Painting and coating (Dipping, Spraying and Depositing) – Metallizing (Vacuum metallization, Vacuum evaporation, sputtering) – Plating (Electroless plating, Electrolytic plating) – Flame and arc spraying – hot foil stamping – hot transfer – In mold decorating (Film insert molding, in mold transfer decoration, Powder coating) – Water transfer – Printing (Pad printing, Screen printing, Sublimation printing, Flexography, Dry offset printing) – Laser Marking, Vapor polishing, Decals – Understanding Recycling Codes.
  3. Maintenance of Injection Moulds: Advantages of Preventive maintenance, maintenance of – cooling lines, mould surfaces, heating & control systems. Action taken after examination and cleaning. Repair and alterations of injection moulds.

Text Books:

  1. Pye.R.G.W., “Injection Mould Design”, Affiliated East – west press pvt Ltd, 2000
  2. Athalye.A.S., ‘Injection Moulding”, 2nd Edn., Multi Tech Publishing Co., 1998
  3. George menges and Paul mohren, “How to make Injection moulds”, Hawer publishers, 1991

Reference Books:

For complete syllabus and results, class timetable and more pls download iStudy Syllabus App. It’s a lightweight, easy to use, no images, no pdfs platform to make students life easier.

Model Question Paper-1

Time : 3 Hour Max. Marks : 75

Part – A

Answer any fifteen questions 1×15=15

  1. What is plastic?
  2. Define melting temperature?
  3. List out the types of compression moulding
  4. Write down the working principle of thermoforming
  5. Classify the injection moulding machine
  6. What are the types of gates used in injection mould?
  7. Define shrinkage
  8. List out the parts available in ejection assembly
  9. State the formula for maximum number of cavities
  10. What is undercut?
  11. Define daylight
  12. What are the factors affect the cooling lines?
  13. Write the formula for Economic determination of the number of cavities
  14. Define Curing time
  15. Define Bulk factor
  16. What is parison?
  17. List out the types of holes
  18. Write down advantages of painting
  19. Write any two symbols for recycling plastic materials
  20. what is affect cooling lines cross section?

Part – B

Answer all Questions 5×12=60

  1. a)
      1. Differentiate between thermoplastic and thermoset (4)
      2. Explain Hot runner injection moulding with neat sketch and state its merits (8)

    (Or)

      1. Explain in detail working principle of compression moulding with neat sketch (12)

  2. a)
      1. What is the use of clamping unit ? Explain any one type with sketch (8)

        2. (ii)Draw the algorithm for a mould design procedure (4)

    (Or)

      1. Explain about ejection system? Write the types of ejection and explain any one (8)
      2. Write short notes on parting surface (4)

      1. Write short notes on: Maximum clamping area and Required opening stroke (6)
      2. Briefly explain about Dog leg cam actuation (6)

    (Or)

      1. How can you design mould for threaded component and explain any one type of ejection method for threaded component (6)
      2. Write short notes on: Mould exchanger for elastomer moulds and Alignment of large moulds (6)

      1. Briefly explain about Standard Mould Base with neat sketch (6)
      2. Sketch and explain Head die design which is used in blow moulding (6)

    (Or)

      1. Briefly explain about bottom transfer machine (6)
      2. Explain Design of pot and plunger used in transfer mould (6)

      1. Briefly explain Wall thickness and gussets with neat sketch (6)
      2. Define plating and Explain any one type of plating with neat sketch (6)

    (Or)

      1. Briefly explain :Understanding Recycling Codes (4)
      2. Briefly explain about Maintenance of Injection Moulds (8)

Model Question Paper 2

Time: 3 Hour

Max. 75 Marks

Part – A

Answer any fifteen questions 1×15=15

All question carry equal marks.

  1. Give any two example for thermoplastic
  2. What is meant by Additives
  3. List out the types of Blow moulding
  4. Give any two difference between Transfer and compression moulding
  5. Write down the types of Runner
  6. Explain moulding cycle
  7. What is the need of venting?
  8. Write any two types of ejection system
  9. Write two ejection methods for threaded component
  10. Explain Clamping force
  11. What is Standard Mould systems
  12. What are the uses of hot runner unit mould?
  13. What is loading chamber
  14. What do you mean Flash?
  15. Define breathing time
  16. What is pinch off?
  17. What is the purpose of gussets?
  18. Give two advantages about decorating of plastics
  19. List out the types of printing
  20. What is advantages of preventive maintenance?

Part – B

Answer all Questions 5×12=60

      1. What do you mean thermoset ? Explain Reaction Injection Moulding Process with neat sketch (8)
      2. Explain Pipe extrusion with neat sketch and state its Application (4) (OR)

    (Or)

      1. Explain working principle of transfer moulding with neat sketch (6)
      2. Write the working principle of blow moulding and explain Rotational Moulding (6)

      1. List out the types of nozzles Explain any one type with sketch (6)
      2. what is the use of gate and explain any one type (6)

    (Or)

      1. with the help of neat sketch briefly explain about Plunger Type injection moulding? (8)
      2. Write short notes on cooling system (4)

      1. Write short notes on: internal alignment (6)
      2. What is meant by Day light mould and explain triple day light mould with neat sketch (6)

    (Or)

      1. How can you eject the mould which is having Undercut and explain any one type of ejection method for Undercut (8)
      2. Explain about hot runner nozzle (4)

      1. Briefly explain parison diameter calculation (4)
      2. Write short notes on shrinkage calculation (4)
      3. Briefly explain about Technological determination of the number of cavities (4)

    (Or)

      1. Briefly explain about Toggle type mechanical machine (8)
      2. Explain Machine Specification transfer moulding (4)

      1. Briefly explain Bosses and Tolerances with neat sketch (6)
      2. Define metalizing and Explain any one type of metallization with neat sketch (6)

    (Or)

      1. Briefly explain about Film insert molding (6)
      2. Briefly explain about maintenance of – mould surfaces, heating & control systems (6)

For detail syllabus of all other subjects of BE Tool & Die, M scheme do visit Tool & Die 6th Sem syllabus for M scheme.

Dont forget to download iStudy Syllabus App for latest syllabus and results, class timetable and more.

View All Post

Leave a Reply

Your email address will not be published. Required fields are marked *

*