How to adjust the parameters of high frequency wire cutting? [Zhikai CNC professional answer]
Wire cutting is a common metal processing method. It uses high-frequency current to generate discharge between the workpiece and molybdenum wire, and uses the heat energy of the electric spark to cut the workpiece into the desired shape. Adjusting the frequency of wire cutting can affect the cutting effect and processing quality. The following will introduce some methods of adjusting the frequency of wire cutting.
1. Choose a suitable power supply:
The power supply of the wire cutting machine is the key to adjusting the frequency. Generally speaking, high-frequency power supply can provide a higher frequency range, thus achieving finer cutting. Therefore, when choosing a wire cutting machine, equipment with high-frequency power supply should be given priority.
2. Adjust the current:
The frequency of wire cutting is related to the current. Generally speaking, the greater the current, the higher the frequency. Therefore, the frequency can be adjusted by adjusting the current. When adjusting the current, you need to be careful not to exceed the rated current of the power supply to avoid damaging the equipment.
3. Adjust the discharge gap:
The discharge gap refers to the distance between the workpiece and the electrode. The size of the discharge gap affects the frequency of the discharge. Generally speaking, the smaller the discharge gap, the higher the frequency. Therefore, the frequency can be adjusted by adjusting the discharge gap. When adjusting the discharge gap, it is necessary to be careful not to make it too small to avoid causing unstable discharge or short circuit.
4. Adjust the pulse width:
Pulse width refers to the duration of the current. The size of the pulse width will affect the frequency of discharge. Generally speaking, the shorter the pulse width, the higher the frequency. Therefore, the frequency can be adjusted by adjusting the pulse width. When adjusting the pulse width, it is necessary to be careful not to make it too short to avoid unstable discharge or overheating.
5. Discharge gap:
The discharge gap refers to the distance between the electrode and the workpiece, which determines the formation and transmission of the electric spark. Generally speaking, the smaller the discharge gap, the faster the cutting speed, but it is also easy to cause increased electrode wear. Therefore, when adjusting the discharge gap, it is necessary to weigh the specific situation and choose the appropriate value.
6.Working speed:
Working speed refers to the speed at which the workpiece moves during the cutting process, which determines the depth and accuracy of the cutting. Generally speaking, the faster the working speed, the faster the cutting speed, but it is also easy to cause the cutting quality to decline. Therefore, when adjusting the working speed, it is necessary to weigh the specific situation and choose the appropriate value.
7. High frequency voltage regulation:
High-frequency voltage is an important parameter for controlling high-frequency current. Increasing high-frequency voltage can improve the stability of high-frequency current and the cutting effect, but it will also increase energy consumption. Therefore, when adjusting the high-frequency voltage, it is necessary to balance it according to the specific situation. Generally speaking, for thinner workpieces, the high-frequency voltage can be appropriately increased to improve the cutting effect; for thicker workpieces, the high-frequency voltage can be appropriately reduced to reduce energy consumption.
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In short, adjusting the frequency of wire cutting requires comprehensive consideration of factors such as power supply, current, discharge gap, pulse width, etc. When adjusting the frequency, it is necessary to conduct experiments and debugging according to the specific situation to find the best parameter combination to achieve efficient and stable wire cutting processing.
