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Lesson 6: Rib Structure

In the previous two lessons you learned about the role of rib thickness and height in designing a structurally strong part. In this lesson you will learn about rib structure and evaluate part warpage behavior based on overall rib layout.

Topics covered in this lesson include: the importance of fiber orientation in rib structure layouts to minimize warpage, the impact of different rib layouts on fill patterns, fiber orientation, and part warpage, whether thicker ribs will increase the stiffness of finished part, and why the number of ribs is not the primary factor in a part’s structural strength.

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Part Design Rib Structure Play Screen

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

Goals of Part Design (Level 1): 

  • Learn the basics of part design and how various design elements impact a molded part
  • Learn how to optimize different design elements to achieve high quality molded parts
  • Analyze real-life simulations and learn to determine optimal outcomes

Section Description: 
As plastic part assemblies become more sophisticated, individual part designs becomes more complex. This complexity can create challenges for part designers, as well as for mold designers and process engineers. Early in the part design phase, designers must establish design parameters, a necessary step for molding high-quality parts that meet specifications and expectations.

Explanations, simulations, cause and effect analyses, and the uses of various design features are covered in this section. Understanding these design features is important because they influence the moldability, function, appearance, and quality of a part.

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.