- Definition of sheet metal: cold working of sheet metal
Metal: steel, aluminum, copper, etc.
Sheet: 6mm ‘or less
Cold working: cutting / punching / cutting / folding
- Uses of sheet metal
Manufacturing cabinets, car shells, support parts, and general metal appearance parts are all used for sheet metal materials.
- Commonly used materials for sheet metal
- Cold rolled sheet
Specification range: thickness 0.25 ~ 3.0mm, materials above 3.0mm must be customized.
1220mm and 1250 mm specifications, the length can be cut to any size as required. Generally it is 2440mm and 2500mm.
Material characteristics: The surface is iron gray luster, and the surface is easy to be scratched and rusted. Care must be taken during processing to quickly reverse the order.
- Hot rolled plate
Specification range: thickness 1.4 ~ 6.0mm, maximum width 1524mm, generally
1250mm or 1220mm, the material length can be cut to any size as required. Generally it is 2500mm or 2440mm.
Material characteristics: The surface of the material is black and gray, which is not easy to be scratched, but easy to rust. It must be removed during processing. Suitable for structural parts such as baking paint and dusting.
- Stainless steel
General term for stainless acid-resistant steel that is resistant to atmospheric, acid, alkali, salt and other media. To achieve stainless and corrosion resistance, there are many types due to different alloy types and contents. Stainless steel features: good corrosion resistance, good brightness, high strength; a certain degree of elasticity; the surface treatment is mainly because the surface quality of the plate is sometimes not high after treatment (such as drawing) can improve the surface quality. Our company usually uses sus201 SUS304 and SUS316.
- Galvanized sheet
Galvanized sheet is galvanized on the surface of q235, so the name is galvanized sheet.
Thickness specification 0.3 ～ 3.0mm, surface zinc flower types are: normal zinc flower (Z) light zinc flower (G), small zinc flower (X), light zinc flower (GX) zero zinc flower (N), zinc Ferroalloy (R).
- Aluminum plate
As the aluminum material for the plate, there are mainly the following two types, namely industrial pure aluminum and rust-proof aluminum. These two materials have high plasticity, good weldability, high corrosion resistance, but poor cutting ability.
The aluminum content of industrial pure aluminum is greater than 99.00%, and usually has the following grades: 1050, 1060, 1070, 1100, 1200. The plate specifications are mostly 1250X2500 or 1000X2000. The thickness is from 0.3-7.0mm.
Sheet metal processingCutting: CNC punch, ordinary punch, LASER cutting machine, etc. Laser cutting: Fiber cutting gas cutting (cost calculated along the meter) is not suitable for cutting reflective materials. The film on the mirror panel must be removed during laser cutting, and the film must be attached when bending. Need to dot plasma cutting plasma cutting: cheap, suitable for cutting thick plates, conductive, there will be bevels, low precision can cut round tubes, small plasma cutting machine, easy to carry flame cutting, acetylene, cutting thick plates, laser small waterjet, Some materials are not suitable for thermal cutting.