Sheet metal processing process:
Selection of materials:
The materials generally used in sheet metal processing are cold rolled plate (SPCC), hot rolled plate (SHCC), dao galvanized plate (SECC, SGCC), copper (CU) brass, red copper, beryllium copper, aluminum plate (6061, 6063) , Duralumin, etc.), aluminum profiles, stainless steel (mirror, brushed, matte), according to the different functions of the product, the choice of materials is different, and generally need to be considered from the product's use and cost.
1. Cold rolled sheet SPCC, mainly used for electroplating and baking varnish parts, low cost, easy to shape, and material thickness ≤ 3.2mm.
2. Hot-rolled sheet SHCC, material T≥3.0mm, is also used for electroplating, baking varnished parts, low cost, but difficult to form, mainly flat parts.
3. Galvanized sheet SECC, SGCC. SECC electrolytic board is divided into N material and P material. N material is mainly used for surface treatment and high cost. P material is used for sprayed parts.
4. Copper: It is mainly used for conductive materials, and its surface treatment is nickel plating, chrome plating, or no treatment, which is costly.
5. Aluminum plate; generally use surface chromate (J11-A), oxidation (conductive oxidation, chemical oxidation), high cost, silver plating, nickel plating.
6. Aluminum profiles; materials with complex cross-section structures are widely used in various sub-boxes. The surface treatment is the same as the aluminum plate.
7. Stainless steel; mainly used without any surface treatment, high cost.