Reasons affecting the machining speed of WEDM

The main working principle of WEDM is as follows: a capacitor is formed between the workpiece and the electrode wire. When the distance is very close, the part of the convex plate on the surface (because the workpiece has surface roughness, the workpiece surface is uneven from the microscopic point of view) is prone to local breakdown of the capacitor and local short circuit due to the closer distance.

The heat generated by short-circuit current makes the local temperature rise sharply, vaporizing and corroding the convex part of the surface, so as to achieve the purpose of removing materials. Dalian fast and slow wire cutting manufacturer Hotline

When cutting red copper by wire cutting, copper chips are easy to stick to molybdenum wire, it is not easy to remove chips, and the cutting speed can not go up. Therefore, the tracking adjustment should be slower than the speed of cutting ordinary steel materials.

It can reduce (limit) the speed of the machine tool and appropriately increase the pulse interval to facilitate chip removal and reduce the generation of electric corrosion dirt at the cutting place, so as to make the processing more stable and prevent wire breakage.

1. The molybdenum wire should be thicker, the pulse width should be larger, and the frequency conversion tracking should be tighter.

2. There is a rotary switch on the controller, which rotates slowly to the left and fast to the right.

3. Generally, without this rotary switch, all parameters should be adjusted, and the wire cutting fluid will lose its ionization effect after a long time.

4. The guide roller bearing shall also be inspected and maintained daily. This speed can also be raised when the machine is normal.