Design for Injection Moulding

Defective plastic parts are often only found late in the day and after significant investment of time and money. By attending this one-day course you will gain an understanding of the causes of part defects and how to avoid them. Common plastic part defects will be explored and solutions developed, enabling attendees to design plastic parts with confidence.

Who Should Attend?

Duration

Date

Course Fee

• Course Introduction
  • Course objectives
  • The injection moulding process
  • Common part defects (including warpage, sink marks, weld lines, air traps and voids)
• Plastic Flow in Injection Moulding
  • Flow behaviour
  • Heat balance in the injection mould
  • Pressure and shrinkage
  • Materials and fibre reinforcement
• Causes of Warpage
  • Why do plastic parts warp?
  • The influence of part design
  • Tool design
  • Processing conditions
• Tooling Considerations
  • Gate placement and sizing
  • Hot and cold runners
  • Ejection and venting
• FEA and Simulation
  • Flow prediction
  • Warpage and distortion
• Failures in Service
  • Residual stresses
  • Mechanical properties and shear degradation
  • Creep