Sheet metal design needs to conform to its process characteristics, generally with the following characteristics.
1. Cost rationality: the rationality of sheet metal design is first considered to be the cost, the product is high, mid-end and the positioning should be clear, which involves material selection, process layout, surface treatment decoration, etc., to achieve the "reasonable" cost of the cost;
2. The rationality of the shape, sheet metal has its own special processing process, which should be suitable for the modeling design, and the curve design should be as little as possible;
3. The rationality of material selection, fully considering the product application occasion, environment and other factors, reasonable selection of raw materials and surface treatment technology;
4. Rationality of structure: sheet metal focuses on stiffness rather than strength.
