Understanding Injection Moulding of Thermoplastics

Understanding Injection Moulding of Thermoplastics
The key to optimum plastic part design. This conference will be online via MS Teams.
The course focuses on the complex phenomena behind the Injection Molding process with a strong emphasis on the understanding of parts’ problems (aspect, shrinkage, warpage, weld lines, burns, etc.) and their relationship with material properties (amorphous, semi-cystalline, filled, unfilled) and the process itself. Each day different topics will be covered.

21 June:
Introduction to the process
Fundamentals of rheology including pressure dependence of viscosity

22 June:
Basic fiber orientation
Flow in simple geometries
Thermal effects and frozen skin dynamics

23 June:
Cosmetic issues and weldlines
Fundamentals of the packing phase

24 June:
Residual stresses
Shrinkage and warpage
Seminar Content

  • basic polymer thermal and rheological behaviour
  • effect of pressure on polymer properties
  • the flow process in Injection Molding
  • part geometry and flow pattern
  • compressibility, phase change and PVT data
  • what is crystallinity and how does it affect processing
  • the packing phase: key to the dimensional quality of the part
  • effective part, mould and process design for proper cavity packing
  • understanding the shrinkage build-up
  • part warpage mechanisms: designing for minimum warpage, according to material properties and part shape
  • warpage: the special case of fibre filled materials
  • the concept of residual stresses: the compromise with warpage
  • final conclusions and wrap-up – seminar evaluation by the participants
  • The seminar is not specifically about Injection Molding Simulation. However, the intention is to clearly help those among the participants who are “Flow Analysis users” to gain a thorough understanding of the concepts that form the basis of the existing code. Model assumptions and corresponding limitations will be highlighted and discussed.

The first part of the seminar will quickly describe the process cycle for the purpose of setting up a common vocabulary.

Target audience

  • design engineers in charge of molded parts
  • mold making specialists
  • molders
  • flow analysts looking for analysis interpretation support
  • project leaders involved in developing molded parts
  • research engineers interested in injection molding
  • mechanical engineers interested in process induced weakness and strength
  • material engineers or designers wishing to improve their understanding of a given class of materials (i.e. glass fiber filled polymers)
  • students involved in the field
  • young, skilled professionals with little field experience
  • flow analysis developers
  • customer support engineers
  • The seminar may not fit the needs of beginners in the field.

Vito Leo’s professional background
Vito Leo is a physicist by training (PhD from Brussels University), and has been working for more than 37 years in the field of polymer processing and mechanical performance of thermoplastics. He has been very active in the field of Injection Molding of Thermoplastics and the use of Finite Element Numerical Simulation of this process, initiating and managing a CAE Team in a large company.

He worked for the largest chemical company in Belgium in a number of research projects in the field of Rheology, Injection Molding, Mechanical performance of polymers and 3D Printing. For nearly 20 years he was Professor at Université Libre de Bruxelles, where he taught an introductory course in Polymer Processing to students of the Engineering Faculty nearly identical in content to his well-known seminar BIMS-1.

He is now full-time on the BIMS SEMINARS activities, expanding the training portfolio and starting consulting work in addition.

Registration fee

DKK 9,675 Members of ATV-SEMAPP
DKK 9,175 Non-members
Includes sessions during the four days & educational materials. Participants will receive a certificate after completing the course.

All prices are excluded of Danish VAT 25%.

Save 1,000 DKK when registering before 1 April 2021.

Registration closes at 25 participants.

Binding registration
Registration is binding, however substitutions are accepted at any time.

The webinar is organized by ATV-SEMAPP and IDA Polymer is a colaborator with the marketing.
IDA Polymer will recieve the participantlist after the event.

ANYONE CAN JOIN - Most of IDA's events are open to everyone, but you must have an IDA user profile in order to participate. It's free and non-binding - create a user profile now. As a member of IDA, you get a discount on many of our events, so please sign in with your member login when you sign up for an event. Read more about the benefits of an IDA membership here.

  • When

    From: 21. jun. 2021 - 09:00 To: 24. jun. 2021 - 11:30
  • Where

    Webinar foran din egen pc, tablet, smartphone

  • Registration Deadline

    20. jun. 2021 - 23:59

  • Organizer

    IDA Polymer

  • Available Seats


  • Event Number


  • Corporate member

    kr. 9.175

  • Member of the organizer

    kr. 9.175

  • Vacant

    kr. 9.175

  • Member

    kr. 9.175

  • Senior member

    kr. 9.175

  • Student member

    kr. 9.175