The surface treatment of sheet metal is mainly in two ways: plastic spraying (powder spraying) and oil spraying. Large parts are usually sprayed with plastic, and small parts can be sprayed with oil. This is determined by the characteristics of the process. The processing of sheet metal shell comes down from laser cutting, bending, welding, grinding, polishing, assembly, spraying and other processes. The problems caused by processing accuracy and welding affect the beauty of products to a certain extent. Shape constraints caused by sheet metal material processing attributes. Sheet metal materials are mostly plate-shaped. Compared with plastic materials, it gives designers less freedom in appearance design. Therefore, in its shape design, it can hardly do the shape you can think of like plastic molding.
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