Optimization Of Tensile Strength Via Optimal Processing Parameter For High Density Polyethylene (HDPE) Material

Mazalan, Muhammad Danial Farhan (2017) Optimization Of Tensile Strength Via Optimal Processing Parameter For High Density Polyethylene (HDPE) Material. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This study aims to optimize the tensile strength via optimal processing parameter using High Density Polyethylene (HDPE) plastic material. The method for doing this project is starting from title selection, literature review, define problems, testing parameter, result analysis, finally discussions and conclusions. The objective of this experiment is to identify the significant effect of moulding process factors on tensile strength for High Density Polyethylene (HDPE) plastic material and to optimize the moulding processing parameter. The material used in this study is High Density Polyethylene (HDPE). By utilizing the Taguchi optimization method, four controllable factor which are Injection Pressure, Holding Pressure, Injection Speed and Holding Time, each at three levels were tested to determine the optimal combination factors and levels in the manufacturing process. The result from this study shows that both of Taguchi analysis and Analysis of Variance (ANOVA) conducted produced the same rank which is D-Holding Time (1st rank), A Injection Pressure(2nd rank),C-Injection Speed (3rd rank) , and Holding Pressure(4th rank). It also shows that the most significant factor that effect the tensile strength is Holding Time and optimize processing parameter is A1B2C2D1. Factor A (Injection Pressure) with level 1 parameter which is 125 Mpa, Factor 2 (Holding Pressure) with level 2 which is 16.25 Mpa, Factor C (Injection Speed) with level 2 which is 1107.5mm/s and last but not least Factor D (Holding Time) with level 1 which is 8s.

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