Enhancement Quality of Sand Casting Manufacturing Product Using Taguchi Method

摘要

Sand casting is the most widely used technique in foundry industry. In manufacturing process, there are found a number of parameters involved. The parameters should be controlled to improve the quality of sand casting product. However, a number of barriers make the casting process difficult to avoid a defect of casting. This aims of this study is to reduce the number of defect, especially on surface roughness. Taguchi method was used to evaluate the sensitivity of several independent parameters. Orthogonal array is used for experimental purpose. Several control parameters; such as sand particle size, permeability and melting temperature were selected as control parameters. By using Design of Experiments, this study proposed a new design of operations process based on independent parameters. The design proposed is 165 AFS of particle size, 50 nu of permeability and 710~0 for melting temperature.