Skip to main content
SpringerLink
Log in

Research on thermal stress, deformation, and fatigue lifetime of the rapid heating cycle injection mold

  • ORIGINAL ARTICLE
  • Published:
The International Journal of Advanced Manufacturing Technology Aims and scope Submit manuscript

Abstract

Rapid heating cycle molding (RHCM) is a novel plastic injection molding process. It can be used effectively to prevent many defects of products produced in conventional injection molding process. In this paper, the panel of large-size liquid crystal display TV was taken as an example. Thermal, deformation, and fatigue analysis models for RHCM injection mold were established. Firstly, by analyzing the heat transfer process of the RHCM mold, the temperature distributions on the mold cavity surface were studied. Secondly, through numerical simulation, the tendency of the stress and deformation of the RHCM mold was obtained. It showed that the fixing mode between the stationary mold insert and the stationary mold plate had a great influence on the thermal stress and deformation of the mold. As a result, a new fixing mode for the stationary mold insert was proposed which could effectively decrease the deformation caused by the temperature changing. Lastly, the lifetime of the mold under different fixing modes was evaluated, and reasonable suggestions which could improve the lifetime of RHCM mold were also proposed. Application in engineering proved that it was a very effective way to improve the lifetime of RHCM mold by using the suggested fixing mode.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Chen Y F, Yang V, Yang W H, Chang R Y (2006) True 3D and fully transient mold temperature simulation for RHCM process. SPEATC 3

  2. Chen SC, Jong WR, Chang JA (2006) Dynamic mold surface temperature control using induction heating and its effects on the surface appearance of weld line. J Appl Polym Sci 101:1174–1180. doi:10.1002/app. 24070

    Article  Google Scholar 

  3. Au KM, Yu KM (2007) A scaffolding architecture for conformal cooling design in rapid plastic injection moulding. Int J Adv Manuf Technol 34:496–515. doi:10.1007/s00170-006-0628-x

    Article  Google Scholar 

  4. Nakao M, Tsuchiya K, Sadamitsu T, Ichikohara Y, Ohba T, Ooi T (2008) Heat transfer in injection molding for reproduction of sub-micron-sized features. Int J Adv Manuf Technol 38(3–4):426–432. doi:10.1007/s00170-007-1343-y

    Article  Google Scholar 

  5. Dimla DE, Camilotto M, Miani F (2005) Design and optimisation of conformal cooling channels in injection moulding tools. J Mater Process Technol 164–165:1294–1300. doi:10.1016/j.jmatprotec.2005.02.162

    Article  Google Scholar 

  6. Tang SH, Kong YM, Sapuan SM, Samin R, Sulaiman S (2006) Design and thermal analysis of plastic injection mould. J Mater Process Technol 171(2):259–267. doi:10.1016/j.jmatprotec.2005.06.075

    Article  Google Scholar 

  7. Shiraishi Y, Norikane H, Narazaki N, Kikutani T (2002) Analysis of heat flux from molten polymers to molds in injection molding processes. Int Polym Process 17:166–175

    Google Scholar 

  8. Kim CH, Youn JR (2007) Determination of residual stresses in injection-moulded flat plate: simulation and experiments. Polym Test 26(7):862–868. doi:10.1016/j.polymertesting.2007.05.006

    Article  Google Scholar 

  9. Gao YH, Wang XC (2008) An effective warpage optimization method in injection molding based on the Kriging model. Int J Adv Manuf Technol 37:953–960. doi:10.1007/s00170-007-1044-6

    Article  MathSciNet  Google Scholar 

  10. Zhang HL, Ong NS, Lam YC (2008) Mold surface roughness effects on cavity filling of polymer melt in micro injection molding. Int J Adv Manuf Technol 37:1105–1112. doi:10.1007/s00170-007-1060-6

    Article  Google Scholar 

  11. Erzurumlu T, Ozcelik B (2006) Minimization of warpage and sink index in injection-molded thermoplastic parts using Taguchi optimization method. Mater Des 27(10):853–861

    Google Scholar 

  12. Aisa J, Javierre C, Serna JA (2006) An example of simulation tools use for large injection moulds design. J Mater Process Tech 175(1–3):15–19

    Article  Google Scholar 

  13. Chen SC, Peng HS, Chang JA, Jong WR (2004) Simulation and verification of induction heating on a mold plate. Int J Heat Mass Transfer 31(7):971–980

    Article  Google Scholar 

  14. Chang PC, Hwang S (2006) Simulation of infrared rapid surface heating for injection molding. Int J Heat Mass Transfer 49:3846–3854

    Article  MATH  Google Scholar 

  15. Kang MH (2007) Wonder injection molding with momentary mold surface heating process. CAE Molding Conference in Taiwan, Republic of China

  16. Wang RJ, Shang DG (2009) Low-cycle fatigue life prediction of spot welds based on hardness distribution and finite element analysis. Int J Fatig 31:508–514

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan, 250061, China

    Xiping Li, Guoqun Zhao, Yanjin Guan & Huiping Li

  2. Engineering Research Center for Mold & Die Technologies, Shandong University, Jinan, 250061, China

    Xiping Li, Guoqun Zhao, Yanjin Guan & Huiping Li

Authors
  1. Xiping Li
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Guoqun Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Yanjin Guan
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Huiping Li
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Guoqun Zhao.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Li, X., Zhao, G., Guan, Y. et al. Research on thermal stress, deformation, and fatigue lifetime of the rapid heating cycle injection mold. Int J Adv Manuf Technol 45, 261–275 (2009). https://doi.org/10.1007/s00170-009-1969-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00170-009-1969-z

Keywords

Search

Navigation