How to check the cutting quality of laser cutting machine

The cutting quality of the laser cutting machine is a problem that many people who seek beauty are more concerned about. So how should the cutting quality of the laser cutting machine be checked? Let's give you a brief analysis.　　 How to quickly find better cutting parameters under different cutting conditions and keep them stable during the cutting process is particularly important. Therefore, it is necessary to study on-line detection and real-time control of laser cutting quality. The main indicators of high-quality laser cutting are that there is no cutting defect and the cutting surface roughness value is small. Therefore, the target of real-time inspection should be able to identify cutting defects and detect the information reflecting the roughness of the cutting surface. Among them, it is more important to obtain the roughness information. , The difficulty is also relatively large. In the detection of the roughness of the cutting surface, an important research result is to find that the dominant frequency of the pulsation spectrum of the optical radiation signal at the cutting front is equal to the frequency of the cutting fringe of the cutting surface, and the frequency of the cutting fringe is related to the roughness. The radiation signal is related to the roughness of the cut surface. The characteristic of this method is that the detection equipment and signal processing system are relatively simple, and the detection and processing speed is fast. Further research has shown that the consistency of the main frequency of the optical radiation signal at the cutting front and the fringe frequency on the cutting surface is limited to a smaller cutting speed. When the cutting speed is greater than a certain cutting speed, the main frequency of the signal disappears, and it can no longer be found. Any information related to cutting stripes. Therefore, only relying on the light radiation intensity signal of the cutting front has great limitations, and it is difficult to obtain valuable information on the surface roughness of the cutting machine at a normal cutting speed, especially the information of the roughness near the lower edge.　　 While using a visual sensor to monitor the cutting edge and spark shower images at the same time, more comprehensive and abundant information about cutting defects and cutting surface roughness can be obtained. In particular, the shower of sparks ejected from the lower end of the slit has a close relationship with the quality of the lower edge of the cutting surface, and is an important source of information for obtaining the roughness of the lower edge of the cutting surface.　　The spectrum and main frequency of the optical radiation signal at the front of the laser cutting machine extracted are only related to the cutting stripes on the upper part of the cutting surface, and do not reflect the condition of the cutting stripes on the lower part, and the obtained information is not valuable. Because the general cutting surface (except for the cutting of very thin plates) is divided into upper and lower parts, the upper cutting stripes are neat and fine, and the roughness is small; the lower cutting stripes are disordered, and the roughness is large. The roughness is a larger value. The detection signal only reflects the condition of the area with good quality, not the condition of the lower quality, and does not reflect the information of the poor quality near the lower edge. It is unreasonable and unreliable to use it as a basis for cutting quality evaluation and control. of.　　 Wuhan Gaoneng Laser Equipment Manufacturing Co., Ltd. is a high-tech enterprise integrating Ru0026D, production and sales of professional laser complete sets of equipment. Not only successfully developed laser equipment with advanced technology, but also used self-support import and export rights to promote products to more than forty global products including Hong Kong, South Korea, Vietnam, Malaysia, Thailand, Australia, the United States, Japan, Germany, the Netherlands, Jordan, etc. nation.