Desktop CNC cutting machine is a high-speed, precision, miniaturization desktop cutting machine. The following are the factors that affect the desktop CNC plasma cutting machine based on our more than ten years experience of industry:
1.cutting current
Increasing the cutting current can also improve the cutting power of plasma arc and be limited by the maximum allowable current. Otherwise, the arc column will become thicker, the slit will widen, and the loss of electrode and mouth will increase.
2.Cutting height
Cutting height refers to the interval between the end of the nozzle and the surface of the workpiece. According to the thickness and material of the cutting plate, the setting of the cutting height is not the same so the setting should be suitable to fully develop the plasma arc cutting.
3.Motor internal shrinkage
The internal shrinkage of the motor is the interval between the electrode and the end surface of the cutting nozzle. The appropriate amount of shrinkage in the electrode can make the arc get good compression in the cutting nozzle and get the plasma arc with concentrated energy and high temperature.
- gas-flow rate
Increasing the flux of the input gas can improve the voltage of the plasma arc column, and can also enhance the compression of the arc column to make the energy of the plasma arc more concentrated. At the same time, the injection force is stronger, and the cutting speed and cutting effect can be improved finally.
- cutting speed
The temperature and ability of plasma arc determine the cutting speed. Under the condition of ensuring the cutting quality, the cutting speed should be improved as much as possible, which can reduce the deformation of the cutting parts and the size of the heat affected area of the sheet metal.
6.No-load voltage and arc column voltage
The arc voltage is usually regulated by adjusting the gas flow rate and increasing the amount of condensation in the electrode, but the regulated arc voltage should not exceed 65% of the no-load voltage.
