In today's world, steel structural components are widely used, such as in various structural engineering, engineering applications, and daily necessities. So, what are the processing techniques for manufacturing steel components? This article mainly explains cutting, bending, forming, welding, and assembly.
1、 Structural cutting: The cutting of steel is carried out using very hard cutting tools or oxygen flame cutting. The most common cutting method is to place the raw materials on the mold for cutting. Cutting work generally includes cutting and piercing processes, and band saws are also commonly used to cut steel parts. The hardened abrasive belt or grinding disc on the band saw comes into contact with the raw material and divides the steel. Flame cutting is also used to cut large section steel, such as slabs. Flame cutting can effectively cut slabs in a short period of time, but extreme temperatures may cause problems as the cutting area can also be defined as a heat affected zone. The cooling method of cutting parts changes the microstructure of steel, directly affecting its mechanical properties. Flame cutting can also be controlled by a computer (CNC type) for rapid cutting of large quantities of parts. These CNC flame cutting machines typically use natural gas as energy source, but laser cutting machines and water knives are also very useful for fast work.
2、 Bending of structural components: The bending of steel is completed through a press or hammer work, and the required angle of steel can be achieved by manually forging the steel or using a bending and bending machine. The stress during the bending process of steel is very important, as excessive force during the bending process can lead to deterioration, or the bending area may require further annealing process.
3、 Welding of structural components: The commonly used connection method for steel structural components is welding, which is simple and fast, and the connection of the structure can also be more stable. The main welding methods for steel structures include plasma machine automatic welding, manual arc welding, gas shielded welding, self-protection arc welding, submerged arc welding, screw welding, spot welding, etc.
4、 Assembly and forming of structural components: The forming of steel components usually produces bulky or bulky components, and during the forming process, it is usually impossible to remove materials. The forming process uses existing material blocks. Therefore, molds or punches of different sizes can be used for forming processes. Deep drawing is a very common forming process that can produce conical or cylindrical shapes. The final assembled steel components are used to produce the required steel components, and the assembly steps are usually completed by welding or brazing methods.
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