How EDM Graphite Electrodes Can Replace Copper Electrodes

- Jul 25, 2017-

            Firstly, the increasing complication of the geometric shape of the die and the diversification of the application of the products lead to the high requirement of machining and discharge precision of EDM electrodes. The advantages of graphite electrodes are easier processing, higher discharge rate and less graphite loss, so more and more mould factories give up copper electrodes instead of graphite electrodes. In addition, some special shape of the electrode can not be made of copper, but graphite is more easily formed, and copper electrode heavier, not suitable for processing large electrodes, these factors have accelerated the graphite electrode in the mold industry more and more widely used.EDM Graphite Electrodes

             Second, the graphite electrode is easy to process, and the processing speed is significantly faster than the copper electrode. For example, using milling process to process graphite, its processing speed than other metal processing faster than $number times and do not need additional manual processing, and copper electrodes need manual grinding. Similarly, if the use of high-speed graphite processing center to manufacture electrodes, the speed will be faster and more efficient, will not produce dust problems. In these processes, the selection of tools and graphite suitable for hardness can reduce the wear and tear of the tool and the breakage of the electrode. If the milling time of graphite electrode is compared with that of copper electrode, the graphite electrode is 67% faster than that of copper electrode, and the processing of graphite electrodes is 58% faster than that of copper electrode in general. As a result, the processing time is greatly reduced and the manufacturing cost is reduced.EDM Graphite Electrodes

            The third, the graphite electrode and the traditional copper electrode design is different. Many mold plants usually have different reserves in the roughing and finishing of copper electrodes, while graphite electrodes use almost the same amount of reserve, which reduces the number of CAD/CAM and machine processing, which alone is enough to improve the precision of the mold cavity to a large extent.EDM Graphite Electrodes