The course is included in these curricula and study modules

The course takes place in period

  • 3 (2020-01-01 to 2020-03-22)
  • 4 (2020-03-23 to 2020-07-31)

Level/category

Professional studies

Teaching language

English

Type of course

Compulsory

Cycle/level of course

First

Recommended year of study

3

Total number of ECTS

5 cr

Competency aims

Students will develop skills in mould design that comprises of several component designs including cavity, cooling channel, ejection and clamping system and more. The part modelling is equipped with simulation studies in Moldflow to verify the design process.
-In addition, students will develop a capability of analysing the mechanical and rheological behaviour of polymers. This is fulfilled through practical testing of mechanical behaviour of polymers; and in-depth analyses/calculations/ of Newtonian and shear-thinning viscosity models in circular and parallel plates flow.

Learning outcomes

-Students understand the basic two-plate mould design and analyses. These include modelling, engineering analyses and validations using simulations in mould and part design.
-Students understand the mechanical and Rheological behaviours of plastic and apply the knowledge engineering designs.

Course contents

1 The injection Moulding Process (Introduction)
2 The injection Moulding machine
-The injection unit
-Clamping unit
3 Injection Moulds
-Two plate mould
-Three plate mould
-Standard plates in two-plate mould design
4 Two-plate mould design
-Modelling profiles
-Sprue design
-Runner design
-Cavity design
-Ejector system design
-Cooling channel design
-Moldflow simulation
5 Mechanical behaviour of materials
-Elastic and plastic strain
-Stress
-Ductility
-Tensile toughness
-Factor of safety
-Failure mechanism of polymers
-Mechanical Testing /Laboratory Tensile testing/
6 Polymer Rheology
-Viscosity of polymer melt
-Isothermal flow in circular cross section for Newtonian fluids
-Isothermal flow between parallel plates for Newtonian fluids
-Power law viscosity model for polymer melt flow

Prerequisites and co-requisites

-Computer Aided Design (CAD)
-Solid Modelling
-Fluid Mechanics
-Computer Aided Manufacturing (CAM)
-Differential Calculus, Integral Calculus
-Laboratory safety for engineers

Recommended or required reading

-Plastic Engineering 3rd ed., R J Crawford
-The Mould Design Guide, Peter Jones
-Understanding Injection old Design, Herbert Rees

Study activities

  • Lectures - 50 hours
  • Individual- and group instruction - 6 hours
  • Practical exercises - 8 hours
  • Project- and production work/artistic activities - 30 hours
  • Individual studies - 41 hours

Workload

  • Total workload of the course: 135 hours
  • Of which autonomous studies: 135 hours
  • Of which scheduled studies: 0 hours

Mode of Delivery

Participation in tuition

Assessment methods

  • Exams (written-, oral-, home-)
  • Essays, reports, productions and portfolio
  • Weekly exercises

Assessment requirements

Course Assignments and Final exam

Teacher

Gebrehiwot Silas

Examiner

Gebrehiwot Silas

Group size

No limit (20 students enrolled)

Assignments valid until

12 months after course has ended

Course enrolment period

2019-12-24 to 2020-01-20

Assessment methods

  • Date of examination will be announced later - Exams
  • Date will be announced later - Reports and productions
  • Date will be announced later - Other assignments
Room reservations
Date Time Room Title Description Organizer
2019-09-26 09:30 - 13:30 B326 Mould Design Final re-exam in Mould Design(2018-2019) Gebrehiwot Silas
2020-01-07 09:15 - 12:00 D399 Mould Design Gebrehiwot Silas
2020-01-14 09:15 - 12:00 D399 Mould Design Gebrehiwot Silas
2020-01-21 09:15 - 12:00 D399 Mould Design Gebrehiwot Silas
2020-01-28 09:15 - 12:00 D399 Mould Design Gebrehiwot Silas
2020-02-04 09:15 - 12:00 D399 Mould Design Gebrehiwot Silas
2020-02-11 09:15 - 12:00 D399 Mould Design Gebrehiwot Silas
2020-02-18 09:15 - 12:00 D399 Mould Design Gebrehiwot Silas
2020-02-25 09:15 - 12:00 D399 Mould Design Gebrehiwot Silas
2020-03-03 09:15 - 12:00 D399 Mould Design Gebrehiwot Silas
2020-03-10 09:15 - 12:00 D399 Mould Design Gebrehiwot Silas
2020-03-17 09:15 - 12:00 D399 Mould Design Gebrehiwot Silas

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