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http://dx.doi.org/10.14775/ksmpe.2016.16.1.001

Optimal Design of Injection Molding Process using the Mahalanobis Taguchi System  

Kim, Kyung-Mo (School of Industrial Engineering, KIT)
Park, Jong-Cheon (Department of Mechanical Engineering, KIT)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.16, no.1, 2017 , pp. 1-8 More about this Journal
Abstract
Warpage is a major defect frequently found in the injection molding process, and the reduction of warpage is a very challenging problem because of the uncontrollable factors, such as variations in the process parameters. Without any countermeasure against these noises, attempts to reduce the defects often lead to failure. In this research, a new robust design methodology, based on the Mahalanobis Taguchi System (MTS) to reduce warpage, is presented. The MTS performs the orthogonal array experiments and uses the signal-to-noise (SN) ratio of the Mahalanobis distance as a performance metric. The validity of the proposed method is illustrated through an optimal design of the injection molding process of a CPU base plate.
Keywords
Injection Molding; Mahalanobis Taguchi System; Robust Design; Warpage;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Malloy, R. A., Plastic Part Design for Injection Molding: An Introduction, Hanser/Gardner Publishers Inc., Cincinnati, pp. 75-84, 1994.
2 Ni, S., "Reducing Shrinkage and Warpage for Printer Parts by Injection Molding Simulation Analysis," J. of Injection Molding Technology, Vol. 6, No. 3, pp. 177-186, 2002.
3 Subramanian, N. R., Tingyu, L. and Seng, Y. A., "Optimizing Warpage Analysis for an Optical Housing," Mechatronics, Vol. 15, Issue 1, pp. 111-127, 2005.   DOI
4 Taguchi. G., Chowdhury. S., and Wu. Y., TAGUCHI'S Quality Engineering HANDBOOK, Wiley, pp. 957-964, pp. 397-421, pp. 183-184 and pp. 318-339, 2004.
5 Min, B. H., "A Study on Quality Monitoring of Injection-Molded Parts," J. of Materials Processing Technology, Vol. 136, Issues 1-3, pp. 1-6, 2003.   DOI
6 Hong, J. E. and Kwon, H. K., "Selecting Optimal Design Condition Based on Automobile Brake Feeling Using Mahalanobis Taguchi System," J. of the Society of Korea Industrial and Systems Engineering, Vol. 30, No. 1, pp. 41-47, 2007.
7 Taguchi, G. and Jugulum, R., The Mahalanobis-Taguchi Strategy, Wiley, pp. 21-22 and pp. 33-39, 2002.
8 Park, J. C., Kim, K. H., Kim, K. M., and Koo, B. H., "Minimization of Warpage in Injection-Molded Parts by Optimal Design of U-Type Ribs," J. of KSMPE, Vol. 7, No. 1, pp. 53-61, 2008.
9 Lee, B. H. and Kim, B. H., "Optimization of Part Wall Thicknesses to Reduce Warpage of Injection-Molded Parts Based on The Modified Complex Method," Polymer-Plastics Technology and Engineering, Vol. 34, No. 5, pp. 793-811, 1995.   DOI
10 Chen, R. S., Lee, H. H. and Yu, C. Y., "Application of Taguchi's Method on the Optimal Process Design of an Injection Molded PC/PBT Automobile Bumper," Composite Structures, Vol. 39, Nos 3-4, pp. 209-214, 1997.   DOI
11 ED&C, Autodesk Moldflow Insight: The 4th edition of AMI Korean Manual, ED&C Inc., 2009.