Optimization Of Injection Moulding Parameters To Reduce Warp Age On Acrylonitrile Butadiene Styrene (ABS) Dog Bone Part Using Tagucid Method

Sabarudin, Sabirah Sorfina (2020) Optimization Of Injection Moulding Parameters To Reduce Warp Age On Acrylonitrile Butadiene Styrene (ABS) Dog Bone Part Using Tagucid Method. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This study is solely on purpose to find the optimum parameters of injection moulding to reduce warpage in Acrylonitrile Butadiene Styrene (ABS) dogbone manufacturing for injection moulding machine using Taguchi Method. Injection moulding in plastic product manufacturing is considered one of the most important processes. The processes of injection moulding machine can cause defects such as warpage. Warpage is seen as one of the problem on dog bone specimen that is due to differential shrinkage. The parameters focused in this study are cooling time, packing time, injection speed and mould temperature. Hence, this research is to reduce warpage by obtaining optimized parameters using Taguchi Method. The signal-to-noise ratio for ABS material was calculated using the Minitab software with the characteristics of smaller is better. The factors affecting the warpage of ABS dog bone has been concluded that packing time and cooling time shows robust mean effect to the response. The most affecting parameter was packing time where it is ranked as number l in delta sequence of SIN ratio . The final optimum parameters were obtained after confirmatory test which are packing time at 1 Os, cooling time at 15s, injection speed at 50mm/s and mould temperature at 40 °C . The leve ls are 3,3,3 and 2 respectively. Plus, the factor affecting the warpage of ABS dog bone, packing time, shows a robust mean effect to the response

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