1. When cutting with a CNC plasma cutting machine, an appropriate cutting distance should be selected.
According to the specification requirements, use a reasonable cutting distance, that is, the cutting distance is the distance from the cutting nozzle to the surface of the workpiece. When drilling, try to use twice the normal cutting distance or the height of the plasma arc transmission.
2. The cutting of CNC plasma cutting machine should start from the edge.
Plasma cutting should start from the edge as far as possible, and holes cannot be drilled. The CNC plasma cutting machine takes the edge as the starting point to prolong the service life of consumable parts, so the correct way is to align the nozzle with the edge of the workpiece and start the plasma arc.
3. The CNC plasma cutting machine reduces unnecessary "arc strike" time. The nozzle and electrode wear out quickly when the arc is struck, so the torch should be within walking distance of cutting metal before starting.
4. The plasma cutting machine should keep the cutting torch and consumable parts as clean as possible. Any dirt on the torch and consumable parts will affect the performance of the plasma system. When replacing consumable parts, put them on a clean flannel, check the torch connection line frequently, and clean the electrode contact surface and nozzle with hydrogen peroxide.
5. The nozzle of the CNC plasma cutting machine must not be overloaded.
Overloading the nozzle (that is, exceeding the operating current of the nozzle) will quickly damage the nozzle. The current should be 95% of the operating current of the nozzle. For example, on a 100A nozzle, the current intensity should be 95A.
6. The stamping thickness of the CNC plasma cutting machine is within the allowable range of the machine system.
Plasma cutting machines cannot punch holes in ultra-thin steel plates, which are generally 1/2 of the cutting thickness.