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Lesson 7: Warpage Due to Differential Shrinkage

In this lesson, you will learn about warpage due to differential shrinkage. The focus will be on linear shrinkages and their effect on molded parts.

Topics in this lesson include: the effect that linear shrinkage has on molded parts, how variables of wall thickness, gate location, and material determine an optimal combination to minimize shrinkage, and how process-set up factors that can be adjusted to achieve the best results.

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Warpage Due to Differential Shrinkage Play Screen

Begin with the basics! Learn what happens inside a mold during the injection molding process. Build your own Circle of Knowledge lesson by lesson. 

Goals of Molding Fundamentals: Inside the Mold (Level 1): 

  • Learn the fundamentals of what goes on inside a mold during the injection molding process
  • Get a basic understanding of how a molding machine functions and its various components
  • Analyze real-life molded parts and learn the cause and effect behaviors of design and process

Section Description: 
Having the foundational understanding of what happens inside a mold during the injection molding process is key for a successful career in the plastics industry. From part designers to mold designers to process engineers, having a good grasp of these molding fundamentals is essential to designing and produce high quality parts.

Explanations, simulations, cause and effect analyses, and the introduction of various injection molding concepts are covered in this section. The relationship between various factors inside the mold during injection molding are evaluated and analyzed. Fundamental training is important to understand the complex part and mold designs that are commonplace in the injection molding industry.

Recommended For: Entry Level Personnel, All Personnel

Length: Lessons are approximately 15-20 minutes long each

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