Optimization Of Recycle Water Jet Sand Moulding Composition For Sand Casting

Mohd Khusairi, Muhammad Luqman (2019) Optimization Of Recycle Water Jet Sand Moulding Composition For Sand Casting. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Preparation of sand casting mould should take the important mechanical properties such as green strength, shear strength and permeability into consideration. This moulding sand properties play a vital role in determining the optimum moisture content and composition for making green sand mould. Moulding sand are a composition of sand, binders and additives prior to the preparation of the sand mix. However, foundry wastes are essentially composed of used sand mixture, amount of dust, quantity of bentonite and water. Moulding mixture represent the largest proportion of wastes. This study is all about recycling the abrasive water jet waste to produce sand mould. The sand mould was made from water jet abrasive waste are mixed with silica sand as a base sand then will compose with other composition bentonite, coal dust and water. The effect on permeability, green compression strength and shear strength of green sand composition had been investigated. The design of experiment had been create after setup the parameter and ratio for sand mould composition from Taguchi Method at Minitab software. Minitab software aim to analysis identified that in all experiments, bentonite and water are the main interaction effect. Furthermore, it will analyze mechanical properties such as permeability, green composition strength and green shear strength of the sand mould made of abrasive water jet waste. 60% Silica sand composition; 40% Abrasive (Recycle) water jet waste was found to have optimum green strength and effective permeability. For the confirmation of the composition good or not, testing have been running based on testing sample that have been optimize by Taguchi Minitab. That result also based on analysis of main effect from Mean and Signal to Noise ratio. After the analysis, the result from Minitab can compare to Confidence interval. In addition, the best composition result will be compare and decide from Permeability, Green Shear Strength and Green Compression Strength.

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