EDM graphite, also known as graphite for electrical discharge machining, is a new type of material that is now more and more widely used in the precision mold processing industry. At present, in the mold processing factories in developed European countries, more than 90% of the electrode materials for mold processing are graphite. Copper, the once-dominant electrode material, has all but lost its advantages over graphite electrodes. Why is this so? Because graphite has great advantages as a discharge material for EDM, because spark oil also contains C atoms, during EDM, the high temperature causes the C atoms in the spark oil to be decomposed, thereby forming a protective film on the surface of the EDM graphite electrode , compensating the loss of the graphite electrode, so the loss of the graphite electrode is very small, so the service life is long.
Product features of Liugong Graphite EDM Graphite:
my country’s manufacturing industry is developing in a direction. The country vigorously promotes intelligent manufacturing and builds a manufacturing power. Therefore, in the field of precision mold manufacturing, the requirements for the discharge materials used in processing are getting higher and higher. Therefore, EDM graphite, which is EDM Graphite plays an increasingly important role in the processing of these precision molds, so it has received great attention from the industry in the screening of EDM materials.
In the EDM industry in the past, manufacturers used electrolytic copper, copper-tungsten, silver-tungsten, etc. for the selection of electrode raw materials in the past. Of course, traditional graphite is also a good choice. So why was graphite not used as a material for EDM in the early years? That’s because most EDM manufacturers choose electrolytic copper as the raw material for EDM due to the combined factors of cost, quality, and work efficiency. In recent years, with the development of my country’s industry, it has also made remarkable achievements in science and technology. It has become the theme of the times to create higher quality and lower cost in the field of precision mold industry. Therefore, we are looking for newer graphite materials in the industry. Replacing copper electrodes has become a new weather vane. Therefore, many EDM manufacturers have found Liugong graphite and let us produce EDM graphite for them, even if they are queuing up.
Advantages of EDM graphite electrode:
- The processing speed is faster. In general, graphite can be machined faster than copper and discharge faster than copper.
- The material is less prone to deformation, and has obvious advantages in the processing of thin rib materials. The softening point of copper is about 1000 degrees, and it is easy to be deformed by heat. The sublimation temperature of graphite is 3650 degrees, and the thermal expansion coefficient is 1/30 of copper.
- Lighter weight. The density of graphite is only 1/5 of that of copper. When large-scale electrodes are used for electric discharge machining, it can effectively reduce the burden on the machine tool (EDM), and is more suitable for the application of large-scale molds.
- The discharge consumption is smaller. Since spark oil also contains C atoms, during electrical discharge machining, the high temperature causes the C atoms in the spark oil to be decomposed, and in turn, a protective film is formed on the surface of the graphite electrode, which compensates for the loss of the graphite electrode.
The graphite products produced by Liugong Graphite can be processed according to the drawings according to customer needs, and the packaging is wooden box packaging.