Industry News

Commonly used materials for sheet metal processing

2021-09-26
Sheet metal processing includes a variety of methods, including loading and unloading, cutting, bending, welding and forming.
 
1. Cold-rolled sheet SPCC, mainly used for electroplating and baking varnish parts, low cost, easy to shape, and material thickness ≤ 3.2mm. In general sheet metal processing, the 90-degree bending of the plate needs to be realized by pressure in the V-shaped groove, so the relationship between them is tooling and tooling. V-shaped groove processing can also be said to be a process of sheet metal processing. The outer R angle produced by the bending of the metal product (the material thickness is thicker) is too large and unsightly. Therefore, the v-shaped groove (that is, the thickness of the plate is thinned) is planed in the sheet metal processing. The V-shaped planing groove has two functions: one It is to reduce the bending round angle. Generally, the bending inner round angle of the sheet metal is equal to the plate thickness. If the required bending inner round angle of the workpiece is smaller than the plate thickness, it is necessary to plan the V-groove; the second is to reduce the bending force in sheet metal processing In the factory, when the bending force of the workpiece is greater than the tonnage of the bending machine and cannot be bent, the V-groove can be cut to reduce the bending force.
 
2, stainless steel, mainly used without any surface treatment, high cost.
 
3, aluminum plate; generally use surface chromate (J11-A), laser sheet metal processing oxidation (conductive oxidation, chemical oxidation), high cost, silver plating, nickel plating.
 
4. Copper: It is mainly made of conductive material, and its surface treatment is nickel plating, chromium plating, or no treatment, and the cost is high.
 
5. 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.
 
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. Hot-rolled sheet SHCC, material T≥3.0mm, is also used for electroplating and baking varnish parts, low cost, but difficult to form, mainly flat parts.