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An open view of the injection molding machine showing the core side of the mold along with the runners and cooling systems.
An open view of the injection molding machine showing the core side of the mold along with the runners and cooling systems.

Injection Molding Design Fundamentals

The THORS Injection Molding Design Fundamentals course is designed to provide learners with knowledge of part design and mold design considerations for the injection molding process. This course also introduces the learners to the design concepts that offer valuable insight into molding machine selection factors, mold filling analysis, and mold functional systems design. Ready to take the next step? Explore the course details and see everything we’ve packed into this program!

Learning Hours: 2.5

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Course Description

The THORS Injection Molding Design Fundamentals is an advanced-level course focused on mold design for the injection molding process where learners are introduced to part design and mold design considerations. The course also provides an interactive learning experience on molding machine selection factors, mold filling analysis, and mold functional systems design.

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Who will benefit from injection molding design fundamentals course?

R&D new hires, manufacturing process engineers, sales reps – technical sales, account managers, product developers, tech service, product managers, quality managers

Course Classification

This manufacturing course by THORS eLearning Solutions covers application of the included topics.

*THORS uses the Bloom’s Taxonomy Methodology for our course development.

Certificate Awarded for Injection Molding Design Fundamentals

Example of certificate awarded upon successful completion of the course.

*upon successful completion

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Learning Objectives

  1. Explain the various part features to be considered when designing a part for injection molding.
  2. Determine the arrangement and specifications of the mold’s core components.
  3. Identify the appropriate materials used for the construction of mold components and the part.
  4. Understand the different factors involved in molding machine selection.
  5. Differentiate the types of mold filling analysis.
  6. Recognize the importance of mold functional systems in mold design.
A computer screen showing a cup being designed in a design software.
Injection Molding Design Fundamentals course

Table of Contents

  1. Mold Design Considerations
    1. Part Design
      1. Part Features
        1. Wall Thickness
        2. Ribs
        3. Bosses
        4. Corners
        5. Internal Threads
      2. Part Material
        1. Shrinkage
        2. Warpage
        3. Material Properties
    2. Mold Design
      1. Cavity and Core Design
        1. Projected Area
        2. Parting Line
        3. Draft Angle
        4. Undercuts
      2. Mold Base Design
        1. Cavity Layout
        2. Mold Base Sizing
      3. Mold Material
  2. Mold Design Concepts
    1. Molding Machine Selection Factors
      1. Tonnage
      2. Injection Pressure
      3. Mold Height
      4. Tie Bar Spacing
      5. Daylight
      6. Ejector Stroke
      7. Ejector Knockout Pattern
      8. Barrel Capacity
      9. Part Removal
    2. Mold Filling Analysis
      1. Manual Lay-Flat Analysis
      2. Computer Process Simulation
    3. Mold Functional Systems Design
      1. Runner System
      2. Gating System
      3. Ejection System

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