International Journal of Automotive Technology

, Volume 13, Issue 2, pp 273–277

Design optimization of an injection mold for minimizing temperature deviation

  • J. -H. Choi
  • S. -H. Choi
  • D. Park
  • C. -H. Park
  • B. -O. Rhee
  • D. -H. Choi
Article

DOI: 10.1007/s12239-012-0024-5

Cite this article as:
Choi, J.H., Choi, S.H., Park, D. et al. Int.J Automot. Technol. (2012) 13: 273. doi:10.1007/s12239-012-0024-5

Abstract

The quality of an injection molded part is largely affected by the mold cooling. Consequently, this makes it necessary to optimize the mold cooling circuit when designing the part but prior to designing the mold. Various approaches of optimizing the mold cooling circuit have been proposed previously. In this work, optimization of the mold cooling circuit was automated by a commercial process integration and design optimization tool called Process Integration, Automation and Optimization (PIAnO), which is often used for large automotive parts such as bumpers and instrument panels. The cooling channels and baffle tubes were located on the offset profile equidistant from the part surface. The locations of the cooling channels and the baffle tubes were automatically generated and input into the mold cooling computer-aided engineering program, Autodesk Moldflow Insight 2010. The objective function was the deviation of the mold surface temperature from a given design temperature. Design variables in the optimization were the depths, distances and diameters of the cooling channels and the baffle tubes. For a more practical analysis, the pressure drop and temperature drop were considered the limited values. Optimization was performed using the progressive quadratic response surface method. The optimization resulted in a more uniform temperature distribution when compared to the initial design, and utilizing the proposed optimization method, a satisfactory solution could be made at a lower cost.

Key Words

Injection molding Cooling channel Cooling analysis PQRSM Design optimization 

Copyright information

© The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • J. -H. Choi
    • 1
  • S. -H. Choi
    • 1
  • D. Park
    • 2
  • C. -H. Park
    • 2
  • B. -O. Rhee
    • 1
  • D. -H. Choi
    • 2
  1. 1.Graduate School of Mechanical EngineeringAjou UniversityGyeonggiKorea
  2. 2.Graduate School of Mechanical EngineeringHanynag UniversitySeoulKorea

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