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Introduction to Casting Casting is a versatile manufacturing process where molten metal is poured into molds to create parts of desired shapes and dimensions. This technique has been used for centuries, evolving into three primary types: Sand casting Investment casting Die casting Each type offers unique advantages depending on part complexity, production volume, and material requirements. Understanding these differences helps engineers and manufacturers optimize costs and quality. Sand Casting: The Traditional Method Sand casting is the oldest and most widely used method. It involves creating a mold from compacted sand around a pattern of the part. Molten metal is poured into this mold and allowed to solidify. Key features include: Flexibility in size and shape Cost-effective for large parts Suitable for small production runs or prototypes Sand casting can accommodate a wide range of metals, including iron, steel, and aluminum. However, surface finish and dimensional accuracy may req...