uhp 350 carbon graphite electrodes

EDM parameters of Shijiazhuang uhp 350 carbon graphite electrodes

The EDM parameters of Shijiazhuang uhp 350 carbon graphite electrodes are quite different in the selection of EDM parameters between graphite and copper materials. EDM parameters mainly include current, pulse width, pulse gap, and polarity. The following introduces the basis for the rational use of these main parameters. The current density of uhp 350 carbon graphite electrodes is generally 10~12 A/cm2, which is much larger than copper uhp 350 carbon graphite electrodes. Therefore, within the current range allowed by the corresponding area, the larger the current selection, the graphite discharge processing speed The faster the uhp 350 carbon graphite electrodes, the smaller the loss, but the surface roughness will become coarser. The larger the pulse width is, the loss of uhp 350 carbon graphite electrodes will be reduced. However, a larger pulse width will make the processing stability worse, and at the same time make the processing speed slower and the surface rough. In order to ensure the low loss of uhp 350 carbon graphite electrodes during rough processing, a larger pulse width is usually used. The value of 100 to 300 us can effectively realize the low loss processing of uhp 350 carbon graphite electrodes.

In order to obtain a fine surface and stable discharge effect during finishing, a smaller pulse width should be selected. Generally, the pulse width of uhp 350 carbon graphite electrodes is reduced by about 40% compared with copper uhp 350 carbon graphite electrodes. The pulse gap mainly affects the EDM speed and processing stability. The larger the value, the better the processing stability. It is helpful to obtain better surface uniformity, but the processing speed will decrease. In the case of ensuring stable processing, a smaller pulse gap can be selected to obtain higher processing efficiency, but when the discharge state is unstable, a larger pulse gap can be selected to obtain higher processing efficiency. In Uhp 350 carbon graphite electrodes, the pulse gap and pulse width are usually set at 1:1 in electrical discharge machining, while the pulse gap and pulse width are usually set at 1:3 in copper uhp 350 carbon graphite electrodes.

In the case of stable graphite processing, the ratio of pulse gap to pulse width can be adjusted to 2:3. In the case of a small pulse gap, it is beneficial to form a covering layer on the surface of uhp 350 carbon graphite electrodes, which is helpful to reduce the loss of uhp 350 carbon graphite electrodes. The domestic mold manufacturing industry recognizes and accepts it. The correct selection of uhp 350 carbon graphite electrodes and the improvement of related process links will bring high efficiency, high quality and low cost benefits to mold manufacturers.