MULTI-RESPONSE OPTIMIZATION OF PLASTIC INJECTION MOULDING PROCESS USING GREY RELATIONAL ANALYSIS BASED IN TAGUCHI METHOD
This project investigates the multi-response optimization using grey relational analysis based in Taguchi method of plastic injection mould. Four input process parameters selected are mould temperature, melting temperature, injection time and cooling time. The responses investigated were part weight, shrinkage, warpage, ultimate tensile strength, tensile modulus and percentage of elongation. It is found that the optimum setting parameter generated from multi-response optimization is at run number 4 that are mould temperature at 56oC, melting temperature at 250oC, injection time at 0.7s and cooling time at 15.4s. Result of run number 4 for multi-response optimization for part weight, warpage, shrinkage, tensile ultimate strength, tensile modulus and percentage of elongation are 6.9807g, 0.087mm, 1.73%, 24.732MPa, 981.76MPa and 31.37%, respectively. Multi-response optimization results show that all response results are not higher or lower than experimental results. This is because multi-response optimization normalized all response value. Thus, by implemented multi-response optimization process, the materials characteristics value of plastic part can be predicted.
M.H. Osman, N.F. Tamin, M.N. Ahmad, M.H. AB. Rahman, M.K. Wahid, N.A. Maidin, M.H. Abu Bakar, A.A. Azahar, "Effect of cutting parameters on surface roughness in dry drilling of AISI D2 tool steel by using Taguchi method", Journal of Advanced Manufacturing Technology, vol. 12, no. 1(2), pp. 535-545, 2018.
X.S. Sánchez, A.E. Zuñiga and M.H. Avila, "Processing of ultra-high molecular weight polyethylene/graphite composites by ultrasonic injection moulding: Taguchi optimization", Ultrasonics Sonochemistry, vol. 44, pp. 350-358, 2018.
Nagahanumaiah and B. Ravi, "Effects of injection molding parameters on shrinkage and weight of plastic part produced by DMLS mold", Rapid Prototyping Journal, vol. 15, no. 3, pp. 179–186, 2009.
H. Hassan, "An experimental work on the effect of injection molding parameters on the cavity pressure and product weight", International Journal of Advanced Manufacturing Technology, vol. 67, no. 1, pp. 675-686, 2013.
A. López, J. Aisa, A. Martinez and D. Mercado, "Injection moulding parameters influence on weight quality of complex parts by means of DOE application: case study", Measurement, vol. 90, pp. 349-356, 2016.
M. Amran, S. Salmah, M. Zaki, R. Izamshah, M. Hadzley, Sivaraos, M. Shahir and M. Amri, "The effect of pressure on warpage of dumbbell plastic part in injection moulding machine", Advanced Materials Research, vol. 903, pp. 61-66, 2014.
E. Hakimian and A.B. Sulong, "Analysis of warpage and shrinkage properties of injection-molded micro gears polymer composites using numerical simulations assisted by the Taguchi method", Materials and Design, vol. 42, pp. 62-71, 2012.
M.A.M Amran, N. Idayu, K.M. Faizal, M. Sanusi, R. Izamshah and M. Shahir, "Part weight verification between simulation and experiment of plastic part in injection moulding process", IOP Conference Series: Materials Science and Engineering, vol. 160, no. 1, pp. 1-7, 2016.
B. Kc, O. Faruk, J.M. Agnelli, L. Leao, J. Tjong and M. Sain, "Sisal-glass fiber hybrid biocomposite: optimization of injection molding parameters using Taguchi method for reducing shrinkage", Composite Part A: Applied Science Manufacturing, vol. 83, pp. 152-159, 2016.
K. Zhang, L. Jiang, P. Luo, J. Jiang and G. Wu, "Effect of melt flow on morphology and linear thermal expansion of injection‐molded ethylene–propylene–diene terpolymer/isotactic polypropylene blends", Polymer International, vol. 64, no. 9, pp. 1225-1234, 2015.
D. Annicchiarico, U.M. Attia and J.R. Alcock, "Part mass and shrinkage in micro injection moulding: statistical based optimisation using multiple quality criteria", Polymer Testing, vol. 32, no. 6, pp. 1079-1087, 2013.
S.E. Mirvar, R.M. Kaleybar and A. Afsari, "Optimization of injection molding process parameters to increase the tensile strength in polyamide-specimen using the taguchi method", Advanced Materials Research, vol. 341, pp. 395-399, 2011.
N.M. Mehat, S. Kamaruddin, and A.R. Othman, "Investigating the effects of injection moulding process parameters on multiple tensile characteristics of plastic spur gear via experimental approach", Advanced Materials Research, vol. 748, pp. 544-548, 2013.
N.M. Mehat, S. Kamaruddin, A.R. Othman, N.M. Mehat, S. Kamaruddin and A.R. Othman, "Hybrid integration of taguchi parametric design, grey relational analysis, and principal component analysis optimization for plastic gear production", Chinese Journal of Engineering, vol. 2014, pp. 1-11, 2014.
S. Gobinath, D. Elangovan, E. Sivakumar and S.R. Devadasan, "Viability study of use of reprocessed high density polyethylene for manufacturing products and multi response optimization of injection moulding parameters using grey relational analysis", Polymer & Polymer Composite, vol. 24, no. 7, pp. 547-555, 2016.
H. Pervez, M.S. Mozumder and A.-H. Mourad, "Optimization of injection molding parameters for HDPE/TIO2 nanocomposites fabrication with multiple performance characteristics using the Taguchi method and grey relational analysis", Materials, vol. 9, no. 8, pp. 710-721, 2016.
P. Jayaraman and L.M. Kumar, "Multi-response optimization of machining parameters of turning AA6063 T6 aluminium alloy using grey relational analysis in taguchi method", Procedia Engineering, vol. 97, pp. 197-202, 2014.
M.A.M. Ali, A. Abdullah, S. Dahaman, A. Amin and S. Mansor, "Review the mechanical properties of reinforcing agents in polypropylene matrix of car bumper", ARPN Journal of Engineering and Applied Sciences, vol. 12, no. 14, pp. 4209-4213, 2017.