Browse > Article

The Effects of the GAIM Process Variables on the Penetration-Length Variations in a Unary Branch Type Runner Mold  

Han Seong Ryul (부경대학교 기계공학부 대학원)
Park Tae Won (창원기능대학)
Jeong Yeong Deug (부경대학교 기계공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.22, no.1, 2005 , pp. 137-142 More about this Journal
Abstract
Gas-Assisted Injection Molding(GAIM) is an innovative technology for producing plastic parts and has been received extensive attention in the plastic manufacturing industries. But, due to gas-polymer interacting during the gas injection phase, the process has significantly different characteristics from conventional injection molding and, therefore, the control of the process requires much technical knowledge in processing and materials. The experiment was performed about variations of gas-penetration length that is affected by filling imbalance resulting from the structure of runner. The Taguchi method was used for the design of experiment. The most effective factors for the gas-penetration length were the shot size and mold temperature. The most effective factors for the difference of the gas-penetration length were the melt temperature and shot size. This study also discussed the filling imbalance phenomenon in a unary branch runner type mold that has geometrically balanced runner.
Keywords
GAIM; Gas-Penetration Length; Filling Imbalance; Taguchi Method; Unary Branch Type Runner;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Edited by J. Avery, 'Gas-Assisted Injection Molding,' Hanser Gardner Publications, Inc., Cincinnati, 2001
2 Beaumont, J. P. and Young, J. H., 'Mold Filling Imbalances in Geometrically Balanced Runner Systems,' Journal of Injection Molding Technology, Vol. 1, No.3, pp. 133-143, 1997
3 Beaumont, J. P., Young, J. H. and Jawoski, M. J., 'Solving Mold Filling Imbalance in Multi-Cavity Injection Molds,' Journal of Injection Molding Technology, Vol. 2, No 2, pp. 47-58, 1998
4 Lee, S. H. and Son, J. M., 'Optimization of Nano Machining Parameters Using Acoustic Emission and the Taguchi Method,' Journal of the Korean Society of Precision Engineering, Vol. 21, No.3, pp. 163-170, 2003
5 Park, K. M., Park, B. H., Lee, S. H. and Km, C. K., 'The Effect of Gas Pressure on the Stiffness of Products Manufactured with Gas-Assisted Injection,' Journal of the Korean Society of Precision Engineering, Vol. 17, No. 10, pp.102-109, 2000
6 Stevenson, J. F., 'Innovation in Polymer Processing Molding,' Hanser Gardner Publication, Inc., Cincinnati, 1996
7 Shah, S., 'Gas Assisted Injection Molding: a Technology Overview,' Journal of Injection Molding Technology, Vol. 1, No.2, pp. 96-100, 1997