What are the limitations of traditional experimental materials research? What is the superiority of material simulation calculation

The liquid alloy is poured into the casting mold rotating at high speed, so that the liquid metal fills the casting mold and crystallizes under the action of centrifugal force, this casting method is called centrifugal casting.

Superiority: (1) the use of the free surface of the cylinder into a circular casting, can eliminate the core and pouring system, save labor, save materials, reduce casting costs.

(2) liquid metal gas and slag in the centrifugal force under the action of the casting cavity to move and exclude, so the casting is very few shrinkage holes, shrinkage, porosity, slag and other defects.

(3) It is easy to manufacture bimetallic castings

(4) It can improve the ability of liquid metal to fill the mold, and the casting organization is dense.

Limitations:

(1) casting of the barrel-shaped parts of the inner hole free surface roughness, large dimensional error, poor quality, there are more pores, slag, so the need to increase the machining allowance, and is not suitable for casting alloys that are prone to specific gravity of segregation and alloys such as aluminum and magnesium.

(2) The manufacturing cost of metal type is high and the cycle time is long, which is not suitable for single room and small batch production.

(3) It is not suitable for manufacturing complex shape, thin-walled and large castings.