Browse > Article
http://dx.doi.org/10.1016/j.cap.2018.08.017

Simulation of injection-compression molding for thin and large battery housing  

Kwon, Young Il (Department of Fiber System Engineering, Dankook University)
Lim, Eunju (Department of Science Education/Creative Convergence Manufacturing Engineering, Dankook University)
Song, Young Seok (Department of Fiber System Engineering, Dankook University)
Publication Information
Current Applied Physics / v.18, no.11, 2018 , pp. 1451-1457 More about this Journal
Abstract
Injection compression molding (ICM) is an advantageous processing method for producing thin and large polymeric parts in a robust manner. In the current study, we employed the ICM process for an energy-related application, i.e., thin and large polymeric battery case. A mold for manufacturing the battery case was fabricated using injection molding. The filling behavior of molten polymer in the mold cavity was investigated experimentally. To provide an in-depth understanding of the ICM process, ICM and normal injection molding processes were compared numerically. It was found that the ICM had a relatively low filling pressure, which resulted in reduced shrinkage and warpage of the final products. Effect of the parting line gap on the ICM characteristics, such as filling pressure, clamping force, filling time, volumetric shrinkage, and warpage, was analyzed via numerical simulation. The smaller gap in the ICM parting line led to the better dimensional stability in the finished product. The ICM sample using a 0.1 mm gap showed a 76% reduction in the dimensional deflection compared with the normal injection molded part.
Keywords
Injection compression molding; Simulation; Deflection;
Citations & Related Records
연도 인용수 순위
  • Reference
1 H. Yokoi, X. Han, T. Takahashi, W.K. Kim, Effects of molding conditions on transcription molding of microscale prism patterns using ultra-high-speed injection molding, Polym. Eng. Sci. 46 (2006) 1140-1146.   DOI
2 W.S. Guan, H.X. Huang, Back melt flow in injection-compression molding: effect on part thickness distribution, Int. Commun. Heat Mass Tran. 39 (2012) 792-797.   DOI
3 I. Min, K. Yoon, An experimental study on the effects of injection-molding types for the birefringence distribution in polycarbonate discs, Korea Aust. Rheol. J. 23 (2011) 155.   DOI
4 C. Weng, W.B. Lee, S. To, Birefringence techniques for the characterization of residual stresses in injection-moulded micro-lens arrays, Polym. Test. 28 (2009) 709-714.   DOI
5 S.C. Chen, Y.C. Chen, N.T. Cheng, M.S. Huang, Simulation of injection-compression mold-filling process, Int. Commun. Heat Mass Tran. 25 (1998) 907-917.   DOI
6 W.B. Young, Effect of process parameters on injection compression molding of pickup lens, Appl. Math. Model. 29 (2005) 955-971.   DOI
7 D. Ljubic, M. Stamenovic, C. Smithson, M. Nujkic, B. Medo, S. Putic, Time - temperature superposition principle - application of WLF equation in polymer analysis and composites, Zastita Materijala 55 (2014) 395-400.   DOI
8 C.H. Wu, W.S. Chen, Injection molding and injection compression molding of threebeam grating of DVD pickup lens, Sensor Actuator Phys. 125 (2006) 367-375.   DOI
9 H. Ming-Shyan, C. Chin-Feng, Injection molding and injection compression molding of thin-walled light-guided plates with V-grooved microfeatures, J. Appl. Polym. Sci. 121 (2011) 1151-1159.   DOI
10 G. Wei-Sheng, H. Han-Xiong, W. Ze, Manipulation and online monitoring of microreplication quality during injection-compression molding, J. Micromech. Microeng. 22 (2012) 115003.   DOI
11 S. Aid, A. Eddhahak, Z. Ortega, D. Froelich, A. Tcharkhtchi, Experimental study of the miscibility of ABS/PC polymer blends and investigation of the processing effect, J. Appl. Polym. Sci. 134 (2017).
12 J.H. Chun, K.S. Maeng, K.S. Suh, Miscibility and synergistic effect of impact strength in polycarbonate/ABS blends, J. Mater. Sci. 26 (1991) 5347-5352.   DOI
13 L. Yu, C.G. Koh, L.J. Lee, K.W. Koelling, M.J. Madou, Experimental investigation and numerical simulation of injection molding with micro-features, Polym. Eng. Sci. 42 (2002) 871-888.   DOI
14 O.O. Santana, M.L. Maspoch, A.B. Martizez, Polycarbonate/acrylonitrile-butadienestyrene blends: miscibility and interfacial adhesion, Polym. Bull. 41 (1998) 721-728.   DOI
15 S.J. Baek, S.Y. Kim, S.H. Lee, J.R. Youn, S.H. Lee, Effect of processing conditions on warpage of film insert molded parts, Fibers Polym. 9 (2008) 747-754.   DOI
16 M.H. Blees, G.B. Winkelman, A.R. Balkenende, J.M.J. den Toonder, The effect of friction on scratch adhesion testing: application to a sol-gel coating on polypropylene, Thin Solid Films 359 (2000) 1-13.   DOI
17 B.J. Briscoe, A. Delfino, E. Pelillo, Single-pass pendulum scratching of poly(styrene) and poly(methylmethacrylate), Wear 225-229 (1999) 319-328.   DOI
18 H.J. Oh, D.J. Lee, C.G. Lee, K.Y. Jo, D.H. Lee, Y.S. Song, J.R. Youn, Warpage analysis of a micro-molded parts prepared with liquid crystalline polymer based composites, Composites Part A 53 (2013) 34-45.   DOI
19 H.L. Chen, S.C. Chen, W.H. Liao, R.D. Chien, Y.T. Lin, Effects of insert film on asymmetric mold temperature and associated part warpage during in-mold decoration injection molding of PP parts, Int. Commun. Heat Mass Tran. 41 (2013) 34-40.   DOI
20 S. Hong, J. Hwang, J. Kang, K. Yoon, Comparison of injection molding and injection/ compression molding for the replication of microstructure, Korea Aust. Rheol. J. 27 (2015) 309-317.   DOI
21 D. Teixeira, M. Giovanela, L.B. Gonella, J.S. Crespo, Influence of injection molding on the flexural strength and surface quality of long glass fiber-reinforced polyamide 6.6 composites, Mater. Des. 85 (2015) 695-706.   DOI
22 H.J. Oh, Y.S. Song, S.H. Kim, S.Y. Kim, J.R. Youn, Fluid-structure interaction analysis on the film wrinkling problem of a film insert molded part, Polym. Eng. Sci. 51 (2011) 812-818.   DOI
23 H.J. Oh, Y.S. Song, Precise nanoinjection molding through local film heating system, RSC Adv. 5 (2015) 99797-99805.   DOI