How to Design Plastic Injection Molded Parts Plastic injection molding is a versatile and cost-effective method for manufacturing plastic parts. As a product design engineer and mentor, your knowledge in this field is invaluable. Now, it's time to share your expertise with students and teach them how to design plastic injection molded parts effectively. In this article, we'll cover the key aspects of this process, ensuring that students gain a comprehensive understanding. Outline of the Article 1. Introduction 6. Injection Molding Process 2. Understanding the Basics of Plastic Injection Molding 7. Cooling and Ejection 3. Materials Selection 8. Tolerances and Surface Finish 4. Design Considerations 9. Prototyping and Testing - Wall Thickness - Ribs and Bosses - Draft Angles - Undercuts - Parting Lines 10. Cost-Efficiency 11. Sustainability in Plastic Injection Molding 12. Quality Control 13. Case Studies 14. Common Mistakes to Avoid 5. Gate Placement 15. Conclusion Intr...