The square number of molybdenum wire used in WEDM is equal to the GB/T4182-2003 of the national standard under equal processing conditions. Most of the existing molybdenum wire manufacturers modified unique processing technology, adopted advanced production equipment and technology of cold drawn, in the full assurance of the tensile strength of molybdenum wire data, the extensibility of molybdenum wire was small at the same time. The molybdenum wire is not stretched at the site of use, and the probability of broken wire is small. Within a certain processing area, the change of wire diameter is within 0.005. In wire cutting processing multiple repair knife, molybdenum wire diameter value for finishing power practice test is zero. The selection of high quality molybdenum wire is the necessary condition for high precision machining of wire cutting machine. Only the molybdenum wire with stable processing performance can ensure the stability of cutting index. General electric spark wire cutting machine has tension mechanism, compared with the traditional wire silk artificial tight wire. The correct using must understand some matters needing attention, in order to make the index used in extreme molybdenum wire cutting, the cutting effect is better.

1. After opening, molybdenum wire is exposed to the air, which is easily oxidized mildew, we must choose vacuum packing products, the molybdenum wire can not be stored for a long time in the normal condition.
2. Always check the guide wheel, the geometry accuracy cylinder column of the guide wheel and the coaxiality are less than 0.005, no "T'" groove appears, the conductive block and the gear bar are found to be marked with groove mark, it should be replaced and moved in time.
3. High quality wire cutting machine coolant is used to ensure the cooling effect of molybdenum wire during processing.
4. Grasp the degree of tightness of the silk.
5. The initial processing current of the new wire is less than the normal current, pulse width, pulse spacing, no-load voltage, power amplifier, and the tracking feed speed of the control system is related to the molybdenum wire.
6. In the wire cutting machine with more water based oil, the workpiece from the fall probability is large, because the cut clean, prevent workpiece falling, broken wire.
7. Please don't shut out at the end of the wire, to prevent the floss to prevent a short time since the stack, molybdenum wire oxide, molybdenum wire should be kept in a cool and dry place.