green sand casting:
Green sand casting is a metal casting process that molds molten metal into solid parts using moist sand. It is the most widely used technique for casting iron, aluminum, and other metals due to its economical nature and flexibility.
Key Features:
The mold consists of silica sand, clay (bentonite), water, and other additives for property improvement of strength and permeability. Green sand does not imply color; it denotes moisture present in the sand.
- Advantages of Green Sand Casting: Low production cost and reusables and. Well designed to shape complex forms and large components. Fast production rate, with minimal wastage of applied materials.
- Drawbacks: Finish is rougher than other casting methods for use. Not at all, suitable for high precision or thin-walled components.
- Industrial Applications: Used in automotive, aerospace, and heavy machinery. Common for engine blocks, pump housings, and pipes. Best for prototypes since molds are procured very fast.
Green sand casting remains one of the most widely used metal casting processes because of its efficiency, economic advantage, and adaptability when casting different metals and parts with different designs.