Three main advantages of graphite electrodes
(1) The increasing complexity of mold geometries and the diversification of product applications have resulted in higher and higher discharge accuracy requirements for spark machines.
The advantages of the graphite electrode are that the processing is easier, the discharge processing rate is high, and the graphite loss is small. Therefore, some group-based spark machine customers give up the copper electrode and switch to the graphite electrode.
In addition, some special shaped electrodes can not be made of copper, but graphite is easier to form, and the copper electrode is heavier and not suitable for processing large electrodes. These factors have caused some group-based spark machine customers to apply graphite electrodes.
The graphite electrode is easier to process, and the processing speed is significantly faster than the copper electrode. For example, the use of milling technology to process graphite, its processing speed is 2 to 3 times faster than other metal processing and does not require additional manual processing, while copper electrodes need to be frustrated by human hands. Similarly, if a high-speed graphite machining center is used to make the electrode, the speed will be faster, the efficiency will be higher, and no dust problem will occur. In these processes, the choice of tools and graphite with the right hardness reduces the wear loss of the tool and the breakage of the copper electrode.
If the milling time of the graphite electrode and the copper electrode is specifically compared, the graphite electrode is 67% faster than the copper electrode.
In the general case of electrical discharge machining, the processing using the graphite electrode is 58% faster than the copper electrode. As a result, the processing time is greatly reduced, and the manufacturing cost is also reduced.
The design of the graphite electrode is different from that of the conventional copper electrode. Many mold shops usually have different reservations for roughing and finishing of copper electrodes, while graphite electrodes use almost the same amount of reservation, which reduces the number of CAD/CAM and machining times. For this reason alone, It is enough to greatly improve the accuracy of the mold cavity.
More advantage details of uhp/hp/rp graphite electrodes please check here:
UHP graphite electrodes advantage details
HP graphite electrodes advantage details
RP graphite electrodes advantage details