Casting is one of the primary methods for producing parts blanks, especially for parts blanks of some brittle metals or alloy materials (such as various iron castings, non-ferrous alloy castings, etc.), casting is almost the only processing method. Compared with other processing methods, the casting process has the following characteristics:

1) Castings can not be restricted by metal materials, size and weight. The casting data can be various cast iron, cast steel, aluminum alloy, copper alloy, magnesium alloy, titanium alloy, zinc alloy and various special alloy materials; the casting can be as small as a few grams to hundreds of tons; the wall thickness of the casting can vary from 0.5 mm to 1 meter; the length of the casting can be from a few millimeters to more than ten meters.

2)Die casting mold can produce rough blanks of various shapes, especially suitable for the production of rough parts with irregular cavities, such as various boxes, cylinders, blades, impellers, etc.

3) The shape and size of the casting can be very close to the part, saving metal materials and cutting man-hours.

4) The original materials generally used in castings have a wide source and low casting costs.

5) The casting process is sensitive and the production rate is high. It can be produced by hand and mechanized.