The basic principle of EDM is the same as that of EDM. It is also processed by the phenomenon of electric corrosion caused by pulse discharge of workpiece with tool electrode. However, WEDM does not need to make forming electrode, but uses moving metal wire (molybdenum wire or copper wire) as electrode.

Dalian sanding and derusting uses the relative movement of electrode wire and workpiece in the horizontal plane to cut workpieces of various shapes. If the electrode wire is tilted regularly relative to the workpiece, the workpiece with taper can also be cut. The workpiece is connected to the positive pole of the pulse power supply, and the electrode wire is connected to the negative pole.

Special cutting fluid for fast and slow wire cutting. The electrode wire can be reused and the machining speed is high, but the rapid wire walking is easy to cause the electrode wire jitter and reverse pause, which will reduce the machining quality. It is not only the main machine type produced and used in our country, but also the original WEDM machining mode in our country.

Because sand was the only abrasive that could be used in the initial stage of the emergence of shot peening technology, shot peening has been called sand blasting at that time and for a long time later. Sand blasting can make the cleaned surface obtain the required cleanliness and a certain roughness at the same time, and improve the adhesion of the coating on the basic surface. No matter how good the coating is, it can not be well attached to the workpiece surface without surface treatment for a long time.

Generally speaking, the higher the luminosity, the higher the price Polished surface is generally used in flat curtain wall, indoor wall and floor, especially in some high-grade buildings, whose indoor wall and floor have high requirements for luminosity. It is characterized by high luminosity and strong reflection of light, which can fully display the rich and gorgeous colors and natural textures of the stone itself.