Sand casting process steps:

1. Pattern making: according to the drawings to make the mold, the mold is divided into wood mold, metal mold, foam mold and so on according to the material.

2. Core making: core box is used to make mold core, which can form the internal shape of casting.

3. Sand molding: molding sand is used to form the mold cavity of the casting. Molding is the key to casting.

4. Melting and pouring: according to the required metal chemical composition, the alloy material is melted in a suitable melting furnace to form qualified liquid metal. Then the molten is injected into the molds to fill the whole cavity.

5. Cleaning: shake off the sand on the surface of the casting, and shot blasting the casting to make the surface smooth.

Is sand casting fit for you?

Sand casting is widely used in industry. In all casting production, sand casting accounts for nearly 70%, and most of them are green sand casting. It will be your best choice if your parts meet the following requirements:

1. Low production cost and simple production process.

2. Short production cycle.

3. There is no restriction on the shape of parts, and complicated design can be cast.

3. It can produce large workpieces with casting weight of more than ten tons.

4.Almost all metals can be cast, such as gray iron, ductile iron, steel alloy, copper alloy, aluminum alloy, etc.

5. Flexible production quantity, suitable for small batch production.

In addition to the above advantages, we must also understand its disadvantages. Compared with investment casting, the surface of sand casting is rough and the tolerance is around CT11.

From ferrous metals to nonferrous metals, sand casting can cast almost all metal grade. TIAMMAY can cast parts in the following materials.