Flat plastic part optimization in injection moulding of pure polypropylene and polypropylene with talc using Taguchi method

Abu Bakar, Mohd Fairuznizam (2017) Flat plastic part optimization in injection moulding of pure polypropylene and polypropylene with talc using Taguchi method. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The utilization of plastic part has been rising consistenly since 1950 in creating various of product. Injection moulding is a common machine to processing the plastic part. In injection moulding, it is crucial to select the suitable parameter to produce plastic part with good quality and accuracy. This project studies the optimization of plastic part in injection moulding by using pure polypropylene and polypropylene with talc as the material. It focuses on the effect of injection moulding process parameter on the selected responses such as part weight and volumetric shrinkage. The parameters that have been study in this project were melting temperature, holding pressure, injection time and cooling time. Then, the optimization of process parameter was done by using Taguchi method and Analysis of Variance (ANOVA). Besides that, the optimization of process parameter was done by using single objective and multi objective. The part weight of specimen was measured by using analytical balance while for the volumetric shrinkage, the value of length, width and thickness was measured using vernier caliper. From the result obtained, the most significant parameter for polypropylene and polypropylene with talc is melting temperature based on the optimization in process parameter.

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