INTRODUCTION TO PLASTIC INJECTION MOULD DESIGN – WITH 10 PROVEN DESIGNS

Injection mould design plays an important part in the quality and cost of a product. Specifically designed for technical personnel in the plastic industry who wish to deepen their knowledge of injection mould design with ten proven designs.

COURSE OBJECTIVES

• Terminologies used in injection mould design
• Classification of injection moulds
• Mould construction selection
• Mould components selection
• Analysis of proven mould design – what works and what does not

COURSE CONTENT
DAY 1

• Calculations and data required during designing an injection mould
  • Classification of injection moulds
  • Wall thickness calculation
  • Draft angle
  • Temperature control
  • Fastening of inserts
  • Number of cavities
  • Costing
  • Mould opening & ejection force
  • Shrinkage

• Runner systems & gating design
  • Sizing of sprues & runners
  • Self degating moulds
  • Insulated sprue bushing
  • Insulated runner system
  • Hot runner molds

• Ejection systems
  • General
  • Flat parts without ejectors
  • Deep parts
  • Stripper plate
  • Air ejection
  • Unscrewing devices

• Undercuts
  • External undercuts
  • External threads
  • Internal undercuts
  • Internal threads

DAY 2

• Demoulding methods
  • Mechanical core pullers
  • Hydraulic core pullers
  • Sliders
  • Lifters

• Venting
  • Passive venting
  • Active venting

• Heat exchange system
  • Cooling time
  • Thermal diffusivity
  • Heat flux and heat exchange capacity
  • Practical design of cooling systems

• Mould making techniques
  • Machining techniques
  • Electrical Discharge Machining
  • Etching

• Materials for injection moulds
  • Case hardened steel
  • Nitrided steel
  • Corrosion resistant steel
  • Berylium copper
  • Coating

• Maintenance of injection moulds
  • Scheduling
  • Storage
  • Repairs and alterations

INTENDED AUDIENCE

Specifically designed for technical personnel in the plastic industry who wish to deepen their knowledge of injection moulds. A variety of people will benefit from this course include:

• Product designers, Mould designers
• Mould makers
• Moulding engineers
• Process engineers
• Project engineers
• Manufacturing engineers
• Production engineers
• Any technical personnel involved with plastic injection moulded parts

PREREQUISITE

• None

METHODOLOGY

• This course is conducted in a seminar room
• Interactive and action based with personal examples.
• Combination of short lectures, visual presentations, workshops, demonstrations, simulations
  and games. More emphasis is placed on workshops to allow the participants to learn the
  material presented in a fun and easy manner.
• Participants are expected to bring along their real life issues for discussion

DURATION

• 2 days

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