The basic principle of wire cutting precision machining technology:
Laser cutting: The use of high power density laser beam irradiation material, the material instantaneously vaporized, melting, so as to achieve the purpose of cutting the material. Laser processing is essentially a non-contact thermal processing, a very wide range of applications, suitable for all kinds of metal and non-metal materials.
Water cutting: also known as water knife, the official name is high pressure water jet cutting technology, under the control of the computer, the use of high pressure water cutting materials, can cut any material texture, processing will not produce thermal reaction.
Plasma cutting: using the energy of high temperature plasma arc to melt and vaporize the material, so as to form the incision, to achieve the purpose of cutting processing technology, similar to laser processing technology, is a kind of thermal processing.
Wire cutting: The full name of wire cutting technology of electric discharge (EDM) is a kind of electric machining, which was discovered and developed by scientists in the former Soviet Union. It uses the instantaneous high temperature of electric spark to melt metal materials and achieve the purpose of cutting.
The working principle of wire cutting precision machining:
Wire cutting technology processing is a special processing technology in industrial production. This technology is different from the traditional processing technology, which needs to use mechanical energy to cut. It mainly uses the heat energy generated by the discharge of electric spark in electric energy to realize the cutting and separation of materials. Therefore, EDM technology is not limited by the material, can be arbitrarily processed any conductive metal materials. So line cutting technology plays a very important role in Chinese industrial production machinery processing.
The working principle of wire cutting machine tool is a process of separating metal materials by melting after the heat generated by the discharge of electric spark reaches the melting point of metal materials. It was invented by the former Soviet Union in the last century, but it is the first time that this technology has been applied to industrial production in our country.
Wire cutting machining is divided into slow wire cutting, fast wire cutting, and medium wire cutting according to the different technology. The difficulty of the workpiece material processed in line cutting has nothing to do with the metal hardness of the material being processed, because there is no significant physical mechanical cutting force in the process of cutting. The technology can be used to process alloys with higher hardness and any conductive materials.
But there is a limit to the minimum angular radius of the workpiece being processed. That is, the minimum radius of wire cutting is the radius of the electrode wire plus the gap between the processing plate and the operating table. Wire cutting in the actual processing, the shape is through the workbench in accordance with the control program has been set to move to form, this can only be processed for the outline of the workpiece, the rest of the material can still be used.
Wire cutting processing is a very fine conductive moving metal as an electrode, the new electrode wire can be continuously replaced, in the processing area by the loss of the metal electrode wire, the workpiece was processed by spark discharge cutting forming a process method, such a mobile electrode wire to avoid the impact of electrode loss on the processing accuracy. And the wire cutting processing technology can only be in the through hole and processing edge, can be drilled in a variety of complex parts cutting.