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What is Automotive Sheet Metal?

1 Answers

VonJonathan

07/29/25 7:55pm

Automotive sheet metal is a technical method of car repair, where automotive sheet metal is equivalent to automotive sheet metal repair. It refers to the process of repairing the car body after a collision, encompassing all tasks except for the anti-corrosion and decorative painting work on the body. Below is a detailed introduction to automotive sheet metal: 1. Introduction: Automotive sheet metal is a processing method for car repair, also known as cold working. If the exterior of the car body is damaged or deformed, the sheet metal process is required. The repair of collision-damaged vehicles has evolved from the original "hammering, pulling, welding, and patching" to the secondary manufacturing and assembly of the car body. The repair of collision-damaged vehicles is no longer just about simple hammering and tapping of automotive sheet metal, nor can the quality of the repair be judged solely by visually inspecting the vehicle's appearance and gaps. Repair technicians must not only understand the technical parameters and dimensions of the car body but also master the characteristics of the body materials, the transmission of force characteristics, the deformation trends and stress points of the body, as well as the body's production processes such as welding techniques. Based on this knowledge, repair technicians must also use advanced measuring tools to conduct precise three-dimensional measurements of the body to determine both direct and indirect damage and deformation. 2. Material Requirements: Sheet metal materials must have excellent plasticity. They must possess the ability to undergo permanent deformation under external forces without being destroyed. Good weldability is essential, as many automotive sheet metal parts are joined together through spot welding, oxy-welding, arc welding, or gas shielded welding, requiring the parts to have good welding properties. Good chemical stability is also crucial. Most automotive body panels operate in outdoor environments, frequently exposed to water and steam, especially components like mufflers, which often work under high temperatures and corrosive gases. This demands that sheet metal parts have excellent chemical stability, being resistant to corrosion at room temperature with strong anti-rust capabilities, as well as resisting corrosion and deformation under high temperatures or prolonged exposure to sunlight.

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