Sheet metal has the characteristics of light weight, high strength, good electrical conductivity, low cost, large-scale production, etc., has been widely used in communication, automotive industry and other fields, today we will take a look at the metal cutting method of sheet metal processing.
1. Flame cutting
Flame cutting is a more conventional processing method, mainly for the processing of thicker plates. This processing method is very large thermal deformation, the slit is relatively wide, the material will form a certain waste, and the speed will not be too fast when processing, and the sheet metal can be used when roughing.
2. Plasma cutting
Plasma cutting is a processing method that uses the heat of high temperature plasma arc to partially melt the metal at the workpiece incision, and uses the momentum of high speed plasma to remove the molten metal to form the incision. Compared with the flame processing method, the plasma mechanical equipment has great advantages in accuracy. CNC plasma equipment has also been greatly improved in speed, in the processing of metal sheets can also ensure the smooth and flat surface of the cutting, and the control of slope is also better.
3. Wire cutting
The full name of wire cutting is electrical discharge wire cutting processing, according to different wire speed, can be divided into fast wire cutting, middle wire cutting and slow wire cutting. In fast wire cutting, the electrode wire moves round and back at high speed, and the cutting precision is poor. Medium wire EDM is a new technology developed in recent years, which realizes frequency conversion multiple cutting function on the basis of fast wire cutting. Slow wire cutting is a low speed unidirectional movement of the electrode wire, and the cutting accuracy is very high.
4. High-pressure water cutting
High-pressure water cutting is the use of high-speed water jet doped with emery for sheet metal processing, can be processed a lot of materials, can be cut thickness is also high. For ceramics, glass and other explosive materials also have a good effect; In copper, aluminum cutting also has more advantages, the disadvantage is that the use of water cutting speed is slow, not environmentally friendly.
5. Laser cutting
The revolutionary process of sheet metal is the use of laser cutting. High flexibility in operation, fast enough in use, high production efficiency, and short production cycle of the product. Laser cutting is the use of focused high-efficiency density laser beam irradiation work, so that the irradiated material quickly melt, vaporize, ablation or reach the ignition point, and at the same time with the beam coaxial high-speed air blowing molten material, so as to achieve the workpiece cut. Laser cutting processing will not produce deformation, there will be no tool wear phenomenon, the adaptability of the material is good. The use of laser processing sheet can be completed one-time precision cutting, to ensure good quality, simple operation, small pollution, in the cutting can be a good way to improve the utilization rate of materials.
