The casting method of CNC machine tool bed iron castings is commonly used in sand casting, followed by special casting methods, such as: metal casting, investment casting, and gypsum casting. The sand casting can be divided into clay sand type, organic binder sand type, resin self-hardening sand type, lost foam and so on.

Machine tool bed casting method selection principle:

1 The priority is to use sand casting. The main reason is that sand casting has lower cost, simpler production process and shorter production cycle than other casting methods. When the wet type can not meet the requirements, consider using a 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, whereas clay dry type machine tool bed castings can weigh up to several tens of tons.

2 According to the casting method to make it suitable for mass production. Low-pressure casting, die-casting, centrifugal casting and other casting methods, due to the expensive equipment and molds, machine tool bed for mass production.

Large-sized molds such as machine tool bed castings have great advantages over traditional sand molds. It not only saves the cost of expensive wood type, but also facilitates the operation, shortens the production cycle, improves the production efficiency, and has high dimensional accuracy and small machining allowance. , good surface quality and other advantages.