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http://dx.doi.org/10.14775/ksmpe.2017.16.5.105

A Study on the Deformation Optimization of a Plastic Bezel Assembled on the Steering Wheel of an Automobiles  

Han, Seong-Ryoel (Department of Metalmold Design Engineering, Kongju National University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.16, no.5, 2017 , pp. 105-112 More about this Journal
Abstract
In this study, plastics were deformed after molding due to the characteristics of the material. The Taguchi experimental design method was utilized to find the molding conditions that minimized deformation of the plastic bezel to be assembled in an automotive steering wheel. The injection molding conditions applied to the experimental design method are the melt temperature, cavity plate coolant temperature, core plate coolant temperature, and cooling time. Each condition was divided into five levels, and a total of 25 experiments were planned. However, instead of performing 25 actual molding experiments, the injection molding analysis was performed using the Moldflow program, and the deformation values for each molding analysis were obtained. The optimal molding conditions were obtained from these deformation values. The actual injection molding experiment using optimal molding conditions was compared with the deformation amount of the current molded product. The deformation was measured using a precise 3D scanner. The deformation amount of the molded product under optimal molding conditions was 16.1% lower than the deformation amount of the current molded product.
Keywords
Injection Molding; Plastic Bezel; Deformation; Taguchi Method; Injection Molding Analysis;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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1 Han, S. R., "The Relation Between Injection Molding Conditions and Gloss of ABS Molding," Journal of the Korea Academia-Industrial Cooperation Society, Vol. 14, No. 11, pp. 5352-5356, 2013.   DOI
2 Potsch, G. and Michaeli, W., "Injection Molding an Introduction," Hanser Publishers, pp. 1-3, 1995.
3 Kim, K. H. and Choi, J. Y., "Design of Injection Molding Process Factors Blower Fan using the Taguchi Method," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 11, No. 3, pp. 92-97, 2012.
4 Lee, H. J., "A Study of Thermal Deformation Behavior of Injection Molded Parts by Using Real-Time Measurement System," Proc. of the KSPE Autumn Conference, pp. OP079-80, 2016.
5 Cha, K. J. and Lee, H. B., "Flow Analysis of Super Engineering Plastic Plunger in Automobile ABS," Proc. of the KSMPE Autumn Conference, pp. 156, 2015.
6 Han, S. R., "Effect of Flow Pattern of Coolant for Injection Mold on the Deformation of Injection Molding," J. of KSMPE, Vol. 14, No. 4, pp. 92-99, 2015.
7 Kim, J. H., Yi, D. E., Jang, J. H. and Lee, S. L., "Deformation Analysis Considering Thermal Expansion of Injection Mold," Transactions of the Korean Society of Mechanical Engineers A , Vol. 39, No. 9, pp. 893-899, 2015.   DOI
8 Kwak, J. S. and Ha, M. K., "Optimization of Grinding Conditions and Prediction of Surface Roughness Using Taguchi Experimental Design," JOURNAL-KOREAN SOCIETY OF PRECISION ENGINEERING, Vol. 21, No. 7, pp. 37-45, 2004.
9 Kim, C. and Ha, T. J., "Optimization of an Automotive Disc Brake Cross-section with Least Thermal Deformation by Taguchi Method," Transactions of the Korean Society of Automotive Engineers, Vol. 24, No. 1, pp. 1-9, 2016.   DOI
10 Han, S. R., "Improvement of Insert Molding for Refrigerator Glass Shelves Using Numerical Analysis," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 15, No. 6, pp. 50-57, 2016.   DOI