1. The method of casting the machine bed should be compatible with the production batch. Casting methods such as low-pressure casting, die-casting, and centrifugal casting are only suitable for mass production because of the high cost of equipment and molds.

2. Sand casting should be preferred in the casting process. The main reason is that sand casting has lower cost, simple production process and shorter production cycle than other casting methods. When the wet type is not satisfactory, consider using a clay sand table dry sand type, dry sand type or other sand type. Clay wet sand castings can weigh from a few kilograms up to tens of kilograms, while clay dry castings can weigh up to tens of tons.

3. It should be suitable for the factory conditions while selecting the modeling method.

It is similar to the casting of machine bed, etc., generally adopts the core forming method, does not make the pattern and the sand box, and assembles the core in the pit; while the other factory adopts the sand box modeling method to make the appearance. Different companies have different production conditions, production habits, and accumulated experience. It is necessary to consider what products are suitable and what products are not suitable according to these conditions.

4, to take into account the precision requirements and costs of castings.

Casting method of machine bed: The casting method is usually sand casting, followed by special casting methods, such as: metal casting, investment casting, gypsum casting, etc. Sand casting can be divided into clay sand type, organic binder sand type, resin self-hardening sand type, lost mold and the like.

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