Usually, the four most important steps in a sheet metal factory are cutting, punching/cutting, folding, welding, surface treatment, etc.
Sheet metal, sometimes also known as wrenching, is a term derived from the English platemetal, which is generally a thin sheet of metal that has been plastically deformed by hand or die stamping to form the desired shape and size, and can be further formed into more complex parts by welding or a small amount of machining, such as chimneys, tin stoves, and car shells that are commonly used in homes.
Sheet metal processing is called sheet metal processing. The main processes are shearing, bending and snapping, bending and forming, welding, riveting, etc., which require certain geometric knowledge. Sheet metal parts are thin sheet metal parts, that is, parts that can be processed by means of stamping, bending, stretching, etc. A general definition is - parts whose thickness remains unchanged during the processing. The corresponding parts are casting parts, forging parts, machining parts, etc. For example, the outside iron shell of a car is a sheet metal part, and some cabinets made of stainless steel are also sheet metal parts.
Modern sheet metal process includes: is filament power winding, laser cutting, heavy processing, metal bonding, metal drawing, plasma cutting, precision welding, roll forming, metal sheet bending forming, die forging, water jet cutting, precision welding, etc. Surface treatment of sheet metal parts is also a very important part of the sheet metal processing process because it has the function of preventing the parts from rusting, beautifying the appearance of the products, etc. The surface treatment of sheet metal parts is mainly to remove oil, oxide, rust, etc. It prepares the surface for post-treatment, which is mainly spraying (baking) paint, spraying plastic and rust-proof layer.
Among the 3D software, SolidWorks, UG, Pro/E, SolidEdge, TopSolid, CATIA, etc. all have a sheet metal part, mainly through the editing of 3D graphics to get the data required for sheet metal processing (such as expansion diagrams, bending lines, etc.) and for CNC Punching Machine/Laser, Plasma, Water Jet Cutting Machine (Laser). Laser, Plasma, Waterjet Cutting Machine, Combination Machine, CNC Bending Machine, etc. Editorial Characteristics Sheet metal has the characteristics of light weight, high strength, electrical conductivity (able to be used for electromagnetic shielding), low cost, and good performance in mass production, etc. Currently, it is widely used in electronic appliances, communications, automotive industry, medical devices, etc. For example, in computer cases, cell phones, MP3, sheet metal is an essential component.
As the application of sheet metal becomes more and more widespread, the design of sheet metal parts becomes a very important part of the product development process. Mechanical engineers must master the design skills of sheet metal parts, so that the designed sheet metal can meet the requirements of both the function and appearance of the product, and also make the manufacturing of stamping dies simple and low cost. Commonly used materials Suitable for stamping processing are very many sheet metal materials, which are widely used in electronic and electrical industries, including
⒈ ordinary cold-rolled sheet SPCC SPCC refers to the ingot through the cold rolling mill continuous rolling into the required thickness of steel coil or sheet, SPCC surface without any protection, exposed to the air is very easy to be oxidized, especially in a humid environment oxidation speed up, the appearance of dark red rust, in use when the surface to paint, electroplating or other protection.
Peal Galvanized Steel Sheet SECC The substrate of SECC is a general cold rolled steel coil, and after degreasing, pickling, plating and various post-treatment processes in a continuous galvanized production line, it becomes a galvanized product. SECC not only has the mechanical properties and similar processability of a general cold rolled steel sheet, but also has superior corrosion resistance and decorative appearance. In the market of electronic products, home appliances and furniture, SECC has great competitiveness and substitutability. For example, SECC is commonly used in computer cases.
SGCC is a hot-dipped galvanized steel coil, which is made from hot-rolled pickled or cold-rolled semi-finished products that have been cleaned, annealed, and dipped into a molten zinc bath at a temperature of about 460°C. The material is harder than SECC, less ductile (to avoid deep drawing designs), thicker in zinc, and less weldable.
Singled stainless steel SUS301 has a lower Cr (chromium) content than SUS304 and is less resistant to corrosion, but it can be cold processed to achieve good tensile strength and hardness, and is more flexible.
Stainless steel SUS304 is one of the most widely used stainless steels. It is more resistant to corrosion and heat than steel containing Cr (chromium) because of its Ni (nickel) content, and has very good mechanical properties.
