A: 1. Aluminum alloy material: aluminum alloy material has the characteristics of light weight and great strength, and the toughness of automotive aluminum alloy is very good, which can cooperate with suspension movement in A better state. However, the control arm of aluminum alloy material has the highest price, which is mainly used for luxury brands.
2.Cast iron material: the so-called cast iron is the fixed shape after melting the iron and pouring it into the mold.The strength and rigidity of cast iron is second only to aluminum alloy, but due to the properties of cast iron, the toughness is poor, so it is often seen that the front suspension of some vehicles breaks directly, rather than deformation;
3.Double-layer stamping parts: simply speaking, the double-layer stamping parts are two independent shaped stamping parts formed by stamping two steel plates through the machine tool, and then the two stamping parts are welded together. The strength is not as good as that of cast iron, and the toughness is better, but the strong impact will force and deform.
4. Single-layer stamping parts: as the name implies, there is only one stamping part, not as two-side stamping parts formed by welding.