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Algorithms for Two Gate Optimization in Injection Molding

  • M. Zhai , Y. C. Lam and C. K. Au
Published/Copyright: April 30, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 20 Issue 1

Abstract

In injection molding, the injection pressure is often limited by the capacity of injection machines. Therefore, for large-volume part, multiple gates are needed so that the maximum flow path can be shortened, with a corresponding decrease in injection pressure. Many components produced by injection molding today require more than one gate. As multiple gates affect resin flow in a mold interactively, their locations might not be easily determined. For a mold with two gates, a pressure gradient search scheme (PGSS) is proposed to optimize their locations in this investigation. A search direction associated with pressure gradient is developed based on the physical nature of the mold-filling process. An alternative scheme based on genetic algorithm is also employed for comparison. Through minimizing the objective function of injection pressure, the optimum gates can be located to achieve balanced flow. Examples indicate that the proposed pressure gradient search scheme is more efficient than genetic algorithm for two gate location optimization.

∗ Mail address: M. Zhai, School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798 E-mail:

References

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Received: 2004-4-14
Accepted: 2004-12-9
Published Online: 2013-04-30
Published in Print: 2005-03-01

© 2005, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. New at International Polymer Processing
  5. Regular Contributed Articles
  6. Preparing of Homogeneous Solution of Ultrahigh Molecular Weight PAN
  7. Non-linear Viscoelastic Behavior of PVC Plastisol
  8. Algorithms for Two Gate Optimization in Injection Molding
  9. Viscoelastic Properties of Flexible Organic Fiber Composites
  10. Mold for Manipulation Microstructure Development
  11. Simultaneous Biaxial Stretching of PP Resins of Varying Tacticity
  12. Rotational Moulding of PVC Plastisol
  13. Drawability of As-spun PP Fibres
  14. Melt Fracture of Linear PE
  15. Investigation of the Cooling Jets Used in the Blown Film Process
  16. Non-linear Crystalline Spherulitic Growth Behavior for LLDPE
  17. Design Sensitivity Analysis for the Optimization of the Injection Molding Process
  18. Preparation and Characteristics of Reactive Blends of Phosphate-containing Maleimide and Epoxy
  19. Easy Tear Multilayer Film of Biaxially Oriented PA6/MXD6 by Double Bubble Tubular Film Process
  20. PPS News
  21. PPS News
  22. Seikei-Kakou Abstracts
  23. Seikei-Kakou Abstracts
https://doi.org/10.3139/217.1860

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. New at International Polymer Processing
  5. Regular Contributed Articles
  6. Preparing of Homogeneous Solution of Ultrahigh Molecular Weight PAN
  7. Non-linear Viscoelastic Behavior of PVC Plastisol
  8. Algorithms for Two Gate Optimization in Injection Molding
  9. Viscoelastic Properties of Flexible Organic Fiber Composites
  10. Mold for Manipulation Microstructure Development
  11. Simultaneous Biaxial Stretching of PP Resins of Varying Tacticity
  12. Rotational Moulding of PVC Plastisol
  13. Drawability of As-spun PP Fibres
  14. Melt Fracture of Linear PE
  15. Investigation of the Cooling Jets Used in the Blown Film Process
  16. Non-linear Crystalline Spherulitic Growth Behavior for LLDPE
  17. Design Sensitivity Analysis for the Optimization of the Injection Molding Process
  18. Preparation and Characteristics of Reactive Blends of Phosphate-containing Maleimide and Epoxy
  19. Easy Tear Multilayer Film of Biaxially Oriented PA6/MXD6 by Double Bubble Tubular Film Process
  20. PPS News
  21. PPS News
  22. Seikei-Kakou Abstracts
  23. Seikei-Kakou Abstracts
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