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Green sand casting is a widely used casting method that utilizes a mixture of sand, clay, and water to create molds for various metal castings. This process offers several advantages, including cost-effectiveness, versatility, and the ability to produce complex shapes. However, achieving a quality surface finish in green sand casting can be a challenging task. The surface finish of cast parts is crucial not only for aesthetic reasons but also for functional performance, as it affects properties such as wear resistance, fatigue strength, and the overall performance of the final product.