What is a CNC plasma cutting machine?
The CNC plasma cutting machine refers to the combination of a simple and easy-to-use numerical control system that uses high-temperature high-speed airflow jetted at the nozzle to ionize, thereby forming a conductor. When the current is passed, the airflow forms a high-temperature plasma arc. The heat of the arc locally melts (and evaporates) the metal at the incision of the workpiece, and uses the power of the high-speed plasma airflow to remove the molten metal to form an incision. The slender and stable plasma arc formed by the annular airflow technology ensures that any conductive metal can be cut smoothly and economically.
What can a CNC plasma cutting machine do?
The CNC plasma cutting machine with different working gases can cut all kinds of metals that are difficult to cut by oxygen, especially for non-ferrous metals (stainless steel, aluminum, copper, titanium, nickel). The cutting effect is better; its main advantage is that the cutting thickness is not large. When metal, plasma cutting speed is fast, especially when cutting ordinary carbon steel sheet, the speed can reach 5-6 times that of oxygen cutting method, the cutting surface is smooth, the thermal deformation is small, and the heat-affected zone is less.
Plasma cutting machines are widely used in steel structures, boilers, light poles, hardware, shipbuilding, aerospace, petroleum, pipelines, sheet metal, electricity, construction, mining, fitness equipment, automobiles, locomotives, pressure vessels, chemical machinery, nuclear industry, General machinery, construction machinery, and other industries.
What gas does the CNC plasma cutting machine need when cutting?
Commonly used plasma arc working gases are argon, hydrogen, nitrogen, oxygen, air, water vapor, and some mixed gases.
The plasma cutting machine needs compressed air. After the compressed air enters the cutting torch, it is distributed by the air chamber to form a plasma arc and auxiliary gas. The plasma gas arc functions to melt the metal, while the auxiliary gas cools the various parts of the torch and blows off the molten metal. If you want to know what is the role of CNC plasma cutting machine gas during cutting, you can refer to What is the role of the gas used by the CNC plasma cutting machine?
What harm does CNC plasma cutting machines have to the human body?
The light radiation intensity of plasma arc light is very large, which is mainly composed of ultraviolet radiation, visible light radiation, and infrared radiation, especially the intensity of ultraviolet light. For example, the relative intensity of ultraviolet radiation with a wavelength of 260-290μm is 2.2 times that of argon arc welding. In addition to light radiation, there are toxic gases such as smoke and dust, high-intensity and high-frequency noise, and high frequencies generated by high-frequency oscillators that cause harm to the human body. Therefore, the plasma cutting machine operation post is classified as a Class B toxic and hazardous post. Related staff must use specific work clothes and dust covers.
What is the accuracy of the CNC plasma cutting machine?
The accuracy of a CNC plasma cutting machine depends on the choice of the CNC system, the choice of motion motor, and the choice of plasma power supply. Of course, the cutting speed, gas flow, cutting current, and the accuracy and stability of the cutting torch height controller of the CNC plasma cutting machine have an impact on the accuracy of the machine.
What is the cutting speed of the CNC plasma cutting machine?
The cutting speed of the CNC plasma cutting machine needs to be determined jointly according to the power supply of the CNC plasma cutting machine and the cutting material and thickness. Cutting too fast is easy to cut continuous metal plates, cutting speed is too slow, low efficiency, high cost, rough-cut. To know the cutting speed of the plasma cutting machine, please click (Four factors affecting the cutting speed of the CNC plasma cutting machine).