What kind of speed is the most suitable in the operation of the laser cutting machine?

During our usual use of the laser cutting machine, its speed can be adjusted, but how can we choose the most suitable speed? I believe that many users have the same problem. Next, let's take a look at the specific speed selection. The following article is a specific introduction. I hope everyone can read it.

Flame cutting is the main method of gas cutting. The balance between cutting speed and cutting accuracy needs to fully consider factors such as the thickness of the cutting material and the pressure of the cutting gas. Generally speaking, the faster the cutting speed, the greater the accuracy error of piercing and cutting; vice versa. In many industrial production and scientific research activities, there are balanced considerations, such as the speed and control of vehicles, the energy consumption and efficacy of electrical appliances, etc. There are also many similar trade-offs in the field of flame cutting, of which the most prominent It is the balance between the cutting speed and cutting precision of the laser cutting machine.

The operating speed of the laser cutting machine needs to be adjusted in time according to the specific cutting conditions. For the laser cutting machine, the speed of different types of cutting nozzles will be different for the difference in processing plate thickness and the difference in cutting gas. In terms of cutting speed, too fast or too slow speed is not suitable. Because a too fast cutting speed will cause quality defects such as depressions and slagging on the cutting section, and severely may cause the cutting end; too slow cutting speed will cause the upper edge of the incision to melt and collapse, the lower edge will be rounded, and the cutting section will be undercut. There are water-washed deep groove pits and so on in half. This makes it difficult for many companies to set the cutting speed accurately when they first contact the laser cutting machine to achieve the best cutting effect.

On the other hand, judging from the advantages of the laser cutting machine itself, since the relevant cutting parameters are pre-set, the adjustment during the cutting process is much simpler than traditional gas cutting. The specific operation is that the speed setting of the laser cutting machine is set before cutting. The user can observe the characteristics of the slag sprayed from the incision through a small-format trial cutting, and then adjust to a suitable cutting speed to complete all cutting work.

In the normal flame cutting process, the cutting oxygen flow is slightly behind the angle of the vertical cutting torch, and the corresponding offset is called the back drag. When the speed is too low, there will be a back support amount, and the fire bouquet at the cut under the workpiece will shift to the cutting direction. If the running speed of the cutting torch is increased, the fire bouquet will deviate in the opposite direction. When the fire bouquet is parallel to the cutting oxygen flow, the cutting speed is considered normal. When the speed is too high, the fire bouquet is obviously backward.

In actual production, the cutting speed should be adjusted according to the performance parameters of the cutting nozzle, gas type and purity, steel plate material and thickness. The cutting speed of the steel plate corresponds to the burning speed of the steel in oxygen, and the cutting speed will directly affect the stability of the cutting process and the quality of the cut section.

Generally speaking, we do not recommend temporarily increasing or decreasing the speed during the cutting process. Perhaps some operators want to improve the cutting efficiency and quality through similar methods, but the actual inspection is often counterproductive, especially when using The performance of laser cutting machine is more obvious, even when cutting corners or arcs, there is no need for human intervention in the speed. The CNC system will adjust the speed in time according to the cutting trajectory to achieve the best cutting quality.

The above is some knowledge about speed that can be used for reference when using a laser cutting machine. I hope everyone can figure it out after reading it.

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