Plastics Injection MoldingLearn how the mold, the product, and the material come together in the hands of the processor in AIM Institute’s Plastics Injection Molding course.

This course is built around the understanding that all elements of plastic product development meet for the first time at the initial mold sampling. The mold, product and material all come together in the hands of the processor. This meeting at the molding machine requires the processor to have a firm grasp of more than just the operation of the machine he/she is working with, but rather the whole process of plastics injection molding. The goal of this course is to acquire the knowledge necessary to scientifically develop the unique plastics injection molding process necessary to create a successful plastics product.

Topics Covered

Upon completion of this course it is expected that the student should have reasonable competency in each of the following:

  1. Intermediate to advanced understanding of the injection molding machines components and related machine controls
  2. Evaluation of the machines capability to control process consistencyPre-sampling preparation and calculations (minimizing start-up problems)
  3. Determining which press is the right press
  4. Mold commissioning including trouble shooting and isolation of tooling issues.
  5. Plastic material drying and handling
  6. The five key components for molding a successful plastic part and their inter-relationship
  7. Understanding of polymer flow and viscosity and their relationship to the molding process.
  8. Understanding the material, part and molds reaction to injection rate changes
  9. Understanding the pressurization/packing/compensation phase of the injection molding process and influence on the molded product
  10. Fine tuning the injection molding cycle
  11. Correct process documentation for process repeatability
  12. How to transfer a process from one molding machine to another
  13. Application of machine and in mold sensors; use of pressure traces; process monitoring; etc.
  14. Know the six most critical variables to track during production
  15. Leveling an injection molding machine
  16. Understand the cooling requirements of the mold, including coolant flow requirements of volume, temperature, plumbing, in vs. out, etc..
  17. Evaluate the machines capability to control process consistency
  18. The benefits of concurrent engineering

Click here for specific learning objectives.


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