What is the meaning of spark discharge in mould?

Die spark discharge is a common metal working phenomenon. It is due to the discharge phenomenon under the action of voltage in the air above the die surface. This phenomenon may produce bubbles, holes and other lines on the surface of the mold, thus affecting the modeling and processing of the mold. Therefore, mold engineers need to have a full understanding of this phenomenon and take corresponding measures to prevent it from happening.

There are three main solutions to mold spark discharge. One is to adjust the electrode spacing of the chip to disconnect the discharge circuit. The second is to use anti-spark coating to reduce arc energy. The third is to reduce the resistivity of the die surface, thus reducing the discharge current. These measures can effectively prevent the occurrence of mold spark discharge, improve the efficiency and quality of mold processing, and reduce production costs.

Spark discharge has become an inevitable phenomenon in mold industry, but we can adopt different methods to reduce or avoid it according to different mold and processing conditions. In addition to the measures mentioned above, we can also clean the mold surface regularly and keep it clean. In addition, keeping the correct machining speed and cutting parameters can also reduce the risk of spark discharge. Mold engineers need to know all kinds of treatment methods in order to choose the best scheme.