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Aluminium sand casting involves creating a mould from sand and then pouring molten aluminium into this mould to produce the desired part. The process starts with the creation of a pattern, typically made from metal or plastic, which represents the final product. This pattern is then used to form a mould in sand, often treated with binders to enhance its strength and reusability.

In essence, compound die stamping refers to a technique where a die performs more than one operation—typically cutting and forming—within a single stroke. The die contains multiple tools or features, allowing various operations like piercing, blanking, and bending to occur simultaneously. This method not only saves time but also reduces the need for secondary operations, thus improving overall efficiency in manufacturing.