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Lesson 4: Optimizing the Filling Speed

Fill speed is one of the most important variables for achieving a uniform process. In this lesson we will focus on optimizing fill speed to achieve uniform temperature distribution inside the cavity from the gate to the end of flow. Even temperature distribution ensures uniform frozen layers, packing distribution, cooling, and shrinkage behaviors.

Topics in this lesson include: why determining optimal fill speed and fill speed profiles is important for uniform processing, how different fill speeds impact flow-front temperature ranges inside a mold, and the effect of different wall thicknesses on flow-front temperature ranges, shear rates, and shear rates at different fill speeds.

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Learn the fundamentals of process optimization by understanding how different phases in the injection molding cycle will influence the overall part quality. Build your own Circle of Knowledge lesson by lesson. 

Goals of Processing: Filling Phase (Level 1): 

  • Learn the fundamentals of process optimizing by analyzing the filling phase of molding a part
  • Gain an understanding of how part design, mold design, and process are connected and interdependent
  • Analyze real-life molded parts and learn the cause and effect behaviors of design and process

Section Description: 

Molding high-quality parts is dependent on many factors, including skillful part and mold design, an understanding of polymer material behavior, and an optimized process. It is important for injection molding processing engineers to follow key steps to ensure consistently high-quality molded parts.

Explanations, simulations, cause and effect analyses, and various filling phase variables are covered in this section.

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.