Tungsten Copper Electrode and Other Materials Comparison VIII

Besides graphite, copper, and Cu-based alloy, Cu-based composite material, diamond is also a common kind of material of electrode. However, due to the cost of diamond is much higher than graphite and the size is limited, there are some scientists do researches about that.

4. Diamond

CVD (Chemical Vapor Deposition) diamond, which mixed by carbon-containing gas and oxygen was excitation-decomposition under the low standard atmospheric pressure, and come into active diamond carbon atoms. They deposit at the matrix and grow up to polycrystalline diamond (or monocrystalline diamond, mono like diamond).

In order to make it have the same properties of tungsten copper (such as conductivity, electrical resistance), researchers add boron (B) during CVD, which has excellent adsorption to oil medium in electrical discharge machining (EDM). CVD diamond has high MRR (Material Removal Rate) and low wastage of electrode, especially it can work in high current density under certain condition, which Cu, graphite and tungsten copper is unavailable.

In addition, there is another kind of PCD (polycrystalline diamond), which has similarities with CVD diamond and its cost is lower than CVD diamond so that it is a kind of ideal material for electrode.

More information about tungsten copper electrode and other materials comparison, click here:

http://news.chinatungsten.com/en/tungsten-information/79286-ti-10093 
http://news.chinatungsten.com/en/tungsten-information/79316-ti-10129 
http://news.chinatungsten.com/en/tungsten-information/79338-ti-10130 
http://news.chinatungsten.com/en/tungsten-information/79339-ti-10131 
http://news.chinatungsten.com/en/tungsten-information/79397-ti-10135 
http://news.chinatungsten.com/en/tungsten-information/79398-ti-10136 
http://news.chinatungsten.com/en/tungsten-information/79428-ti-10137

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