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Lesson 3: Round and Oval Dual Sub-Gates

Gate design and placement are key factors in mold design. In the first part of this lesson we will learn about sub-gates, also called tunnel gate systems, specifically round and oval sub-gates.

The first part of this lesson covers when and why sub-gates are used in mold design, how different gate designs and sizes impact injection pressures, and how to evaluate shear rates using different gate styles.

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Mold Design Round and Oval Sub-Gates Play Screen

Learn the basics of mold design and how various design elements impact a molded part. Build your  Circle of Knowledge lesson by lesson. 

Goals of Mold Design: Gates (Level 1): 

  • Learn the basics of mold design and how various design elements impact a molded part
  • Gain an understanding of various gate styles and how they influence the molding process
  • Analyze real-life simulations and learn to determine optimal outcomes

Section Description: 
Gate design and placement are key factors in mold design. Types of gates, placement, and size significantly affect the outcome of a molded part, so they should be understood for maximum benefit. Because gate placement options are often limited by design restrictions and other part-related constraints, understanding and utilizing industry best practices is useful in achieving optimal results.

This section covers explanations, simulations, cause-and-effect analyses, and the uses of various design features. Understanding these design features is important because they influence a part’s moldability, function, appearance, and quality.

Recommendation: Entry-Level Operators, Technicians, & Designers

Length: Lessons are approximately 15-20 minutes long each

The Kruse Training platform delivers knowledge and expertise developed over three decades in plastic injection molding. Now, companies and individuals can access a state-of-the-art online training program suited for all levels of expertise.