Huangsheng
Blog
30
2025
-
09
What are the forming characteristics of automotive coverings?
Author:
Forming process
Using a single deep drawing process cannot achieve precise control of multiple deep drawing process parameters, so all covering parts are formed through a single deep drawing process. The structure of automotive panels is complex and the deformation patterns are difficult to quantitatively analyze, requiring the assistance of computer simulation technology for design.
Material Properties
Thin materials: The thickness of the sheet is usually thin (such as 0.8-2.0mm), and uneven material flow during forming can easily lead to rebound, wrinkling, or cracking.
Complex local structure: Parts often have decorative edges, reinforcing ribs, and other features, which require precise forming through local deep drawing processes.
Mold and Equipment
A large press (such as a press weighing over 2000 tons) is required to meet the forming requirements, and the mold design needs to balance accuracy and process feasibility.
Technological difficulties
Rebound control: The elastic deformation of the material makes it difficult to ensure the dimensional accuracy of the parts, which needs to be compensated through the shaping process.
Multi process collaboration: Most covering parts need to go through multiple processes such as cutting, flanging, punching, etc., and the process flow is complex.
Solution
For large and complex parts, separate forming (welding after stamping) or laser splicing technology (integrating different material sheets) is used to optimize material properties and costs.
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What are the forming characteristics of automotive coverings?
Using a single deep drawing process cannot achieve precise control of multiple deep drawing process parameters,
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