What is the normal loss of molybdenum wire in wire cutting machine tools? How to judge the speed of molybdenum wire loss in medium-speed wire cutting machine tools on the market?
Molybdenum wire loss principle
What is the wire loss of wire cutting machine related to? The principle of wire cutting machine is to cut off the electrical corrosion phenomenon of the workpiece through the discharge of the electrode wire. Then, in the process of cutting the workpiece, the electrode wire will also be electrically corroded and the surface will be corroded. When you work in a small pit, the pressure will become smaller and the quality will decrease. This is the loss of molybdenum wire.
The wire loss of the wire cutting machine is divided into two aspects, one is mechanical and the other is electrical.
Machine reasons
The fast wire cutting machine and medium wire cutting machine on the market adopt the reciprocating wire layout, and the electrode wire runs very fast, and the friction between the guide wheel and the conductive block will affect the wire loss. When the guide wheel and the conductive block are used for a long time, the contact surface between the electrode wire and them will cut out grooves, thereby increasing the friction between the electrode wire and the guide wheel conductive block, increasing the wire loss or causing the wire to break. Therefore, the guide wheel and the conductive block should not be cheap after a long time, and should be replaced in time.
Good or bad molybdenum wire
For electrode wire, you must use genuine products. Good molybdenum wire has good electrical conductivity, thermal conductivity and tension, which will greatly help reduce wire loss. The most important thing is the use of cutting fluid. In the wire cutting machine, the cutting fluid is responsible for chip removal, cooling and protecting the molybdenum wire, so good cutting fluid and suitable cutting fluid will have an important improvement in reducing wire loss.
In electrical
Parameters must have an impact on wire loss. To put it bluntly, the greater the cutting current, the greater the wire loss, and the proportional relationship between the two is proportional. In addition, the aging of the electric cabinet circuit will also increase the loss of molybdenum wire.