1. Cut height and stability;
2. The cutting speed matches the working air pressure.
Parts cut by CNC cutters can be welded and applied directly without mechanical processing. But the CNC plasma cutter is cut with a plasma arc, which is compared to oxygen cutting. There are still some defects, mainly reflected in the slope of the cutting surface is larger, the finish is not better than oxygen cutting. The main criteria for assessing the quality of CNC plasma cutting are: the tilt of the cutting surface, the depth of cutting, the amount of hanging slag, etc.
If the manual adjustment method is adopted, the height of the cutting nozzle from the steel plate is controlled at 6 to 8mm, through a series of cutting tests, it can be proved that the cutting quality has been significantly improved.
In addition, in order to improve the quality of cutting, we carried out a comprehensive cutting test, according to the test data analysis and finishing, to obtain the numerical control plasma cutting machine part of the best operating parameters. Now described as follows: with CNC plasma cutting machine can cut a variety of complex shape of workpieces, and has the advantages of fast cutting speed, high efficiency, good quality cutting surface, precise cutting size, small thermal deformation of the workpiece.
A high-quality cutting surface should be tilted below 30, cutting depth should be below O.15mm, and less hanging slag, easy to clear.
The height of the cut from the steel plate when controlled by arc pressure adjuster, because its dynamic positioning accuracy can reach .013, so can ensure that the height of the cut and steel plate remains unchanged, so the slope of the cutting surface is small and uniform, and the smoothness is good. When the height of the cut nozzle from the steel plate is adjusted by hand, the cut steel plate should be flattened as far as possible to reduce the number of torch adjustments and ensure stability in the torch cutting process.
CNC plasma cutting machine is a kind of electro-mechanical advanced equipment for metal sheet cutting, has been widely used in shipbuilding, machinery manufacturing and other industries. There are many factors affecting the cutting quality of CNC plasma cutting machine, in addition to the design parameters of the cutting machine, but also related to operation control, cutting process and so on.
