Some Questions About Plasma Cutters?
Plasma cutting is used in cutting and gouging applications, and requires compressed air and electricity to create plasma gas. The plasma cutters can cut up to 7/8-inch steel and stainless steel material, and up to 5/8-inch aluminum material.
How does a plasma cutter work ？
CNC plasma cutter machine, also known as plasma arc cutting machine, combined with an easy-to-operate numerical control system, uses high-temperature high-speed gas jets at the nozzle to ionize, thereby forming electrical conductors. When current passes, the conductive gas 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 flow to remove the molten metal to form a processing method of the incision.
The basic principle is that the arc formed between the electrode and the workpiece is limited by the fine-hole copper nozzle. This increases the temperature and velocity of the plasma emitted from the nozzle. The temperature of the plasma exceeds 20,000 °C, and the velocity can be close to the speed of sound. When used During cutting, the plasma flow increases, so that the penetrating plasma jet cuts through the material, and the molten material is removed in the outflowing plasma.
The difference between this process and the oxy-fuel process is that the plasma process operates by using an electric arc to melt the metal, while in the oxy-fuel process, oxygen oxidizes the metal, and the heat generated by the exothermic reaction melts the metal. Therefore, unlike the oxy-fuel process, the plasma process can be able to cut metals which form refractory oxides, such as aluminum, stainless steel, cast iron, and other non-ferrous metals.
what is a plasma cutter？
Plasma cutting is a processing method that uses the heat of a high-temperature plasma arc to partially or partially melt (and evaporate) the metal at the incision of the workpiece and uses the momentum of the high-speed plasma to remove the molten metal to form an incision.