Sheet metal processing in automotive manufacturing and repair involves many complex shapes of sheet metal components. To avoid the difficulties in material handling, thin sheet metal materials must meet good process performance requirements, i.e.:

1. Sheet metal materials must possess excellent plasticity. They should be capable of deforming under external forces without being damaged. For cold-formed parts, such as automotive stampings, they must exhibit good cold plasticity. For hot-formed parts, like hot-forged springs, spring steel plates, and hot-nail rivets, they must have good hot plasticity.

Excellent weldability. Many automotive body panels are joined together through spot welding, oxygen welding, arc welding, or gas shielded welding, thus requiring the panels to have good welding properties. This is particularly important in automotive patch repair, as materials with good weldability offer higher welding strength and a lower tendency to crack.

Affordable and Economical: For any automotive component, economy should be considered while meeting working conditions. Where feasible, use black metal instead of non-ferrous metal; and non-ferrous metal over precious metals. The lifespan of automotive sheet metal components should be in harmony with that of other automotive components.

4 Excellent Chemical Stability. Automotive coverings are often operated in outdoor environments, frequently exposed to water and steam, particularly exhaust silencers, which operate under high temperatures and corrosive gases. This necessitates that sheet metal parts possess excellent chemical stability, requiring both corrosion resistance and strong anti-rust capabilities at room temperature, as well as resistance to corrosion and deformation under high temperatures or direct sunlight.

5 Excellent dimensional accuracy and inherent quality of the material boards. The dimensional accuracy and inherent quality of the material boards greatly affect sheet metal processing, especially for stamping parts.