The most common problem of laser cutting machine in the processing is that it is easy to produce burrs. Generally speaking, irregular metal parts, such as sharp corners and burrs, will appear at the transition of the workpiece surface. However, it usually does not mean that the appearance of burrs is acceptable. The appearance of burrs directly affects the dimensional accuracy, shape accuracy and surface roughness of machined parts, thereby reducing product quality and bringing about subsequent inspection, assembly, performance and aesthetics. There are many problems, so you should try to avoid failures.
Chuyu Optoelectronics teaches you to stay away from the faults of laser cutting machine: are these faults necessarily caused by the quality of laser cutting machine equipment? Many companies found that when using laser cutting machine to cut, there were many burrs on the workpiece, and the quality was very unsatisfactory, so they suspected that the quality of this cutting machine was defective. Is this really the reason? In fact, this is not necessarily the case.
In most cases, the burr is not caused by the quality problem of the laser cutting machine itself, but by the operator’s wrong operation mode or insufficient maintenance of the cutting machine. In addition, there is another main cause of burr, which is the problem of auxiliary gas. When laser cutting is carried out, the laser beam irradiates the surface of the workpiece to generate extremely high temperature, which rapidly evaporates and evaporates the surface of the workpiece, so as to achieve the purpose of cutting metal. The role of the auxiliary gas is to blow away the residual slag on the surface of the workpiece after the workpiece is irradiated and evaporated by the laser beam.
If this is not done, a layer of attached burrs will form on the cutting surface of the workpiece when the slag is cooled. Next, we will summarize the causes of several common burrs and their corresponding solutions to help you avoid the problem of laser cutting burrs.
The reason of burr in metal laser cutting machine
Common causes and solutions of burrs
Cause 1: The upper and lower positions of the laser beam focus produced by the laser cutting machine shift, resulting in that the energy is not concentrated on the workpiece, the workpiece is not fully vaporized, and the slag amount increases, which is not easy to blow away, so it is easier to produce burrs. Solution: Adjust the position of the laser beam focus, and then adjust it to the best state according to the offset position.
Reason 2: The output power of the laser cutting machine is not enough to effectively evaporate the metal, resulting in excessive slag and burrs. Solution: Check whether the laser cutting machine works normally. If not, timely repair and maintenance are required; If it is normal, check whether the output value is correct.
Cause 3: The cutting speed of the laser cutting machine is too slow, which destroys the surface quality of the cutting surface and produces burrs. Solution: Adjust and increase the cutting line speed in time to make it reach the normal value.
Reason 4: The purity of the auxiliary gas of the laser cutting machine does not meet the required standard, and burrs will be generated on the workpiece. Solution: Replace the auxiliary gas with higher purity.
The metal laser cutting machine is a precision machine, and the frequent occurrence of data errors will lead to its abnormal operation, so it is strict and reduces errors in work. These are the factors that may cause burrs in the laser cutting machine and the specific treatment measures. I hope everyone can solve these problems when facing them.
