Welcome Guest!

Select Level

Lesson 9: Lawn Tractor Pedal

Polymer material characteristics, part design, mold design, and process all play a critical role in molding quality parts.  This lesson focuses on the development and execution of a process development strategy for a single cavity lawn tractor pedal mold.

In this lesson you will learn: the step-by-step approach to achieving cycle time goals; why higher pressure at the end of packing and holding can cause molded-in stress; how a process team may determine that they can inject more slowly during process development and maintain a reasonable temperature range inside the mold; and why molten areas may warp when a part is ejected and how final warpage is dependent on whether the molten areas shrink evenly.


You are not signed up for this course. Subscribe here!

Lawn Tractor Pedal

Learn the necessary steps to successfully execute a process development strategy. Continue to build your own Circle of Knowledge lesson by lesson. 

Goals of Molding Process Development (Level 2): 

  • Learn the basic steps to prepare and set-up a molding cell
  • Understand and implement pre-process development steps
  • Prepare a mold for optimal functionality

Section Description: 

Plastic injection molding is a complex scientific manufacturing process that requires a methodology for setting-up a robust molding process. This section outlines a step-by-step guide that can be adapted to any new molding process development project.

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.