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Lesson 3: Connector and Cover Part

In the first two lessons of this section, you learned the theory behind DOE and the importance of establishing a solid methodology. Now we will set up two DOE examples and analyze the results. In lesson 3 we will focus on a connector part and a two-cavity cover molded part with internal ribs. Because injection molding is a complex scientific manufacturing process, it is important to understand the theoretical and practical applications of this powerful mathematical tool.

Topics covered in this lesson include: how to apply DOE theory to molded part examples; how to evaluate an array of process parameters to determine the optimal process for achieving desired part quality factors; how to evaluate a process DOE table and quality response graph; and how to interpret and utilize 3D surface graphs.

 

 

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DOE Connector and Cover Part

Learn the necessary steps to successfully execute Design of Experiments (DOE) strategy. Continue to build your own Circle of Knowledge lesson by lesson. 

Goals of DOE (Level 2): 

  • Learn the theory and framework of establishing a DOE strategy and how to apply this knowledge to real-world molding examples
  • Learn the five stages of conducting a DOE strategy and how to utilize various charts and graphs to analyze the data
  • Learn about several design types and how they can be applied to DOE

Section Description: 

Design of Experiments, or DOE, is a powerful mathematical tool that can be successfully applied to areas of new mold trials and to trouble-shoot potentially challenging processes. Experimental design techniques can be utilized by anyone with a fundamental understanding of injection molding. This section covers the fundamentals of DOE and how to apply a DOE strategy for molding quality parts.

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.