What are the factors that affect the accuracy of laser cutting?

Compared with traditional processing techniques, metal laser cutting machines have higher processing accuracy, better section effect, and no need for secondary processing. This is also the reason why many companies choose metal laser cutting machines. However, many companies have found that the cutting accuracy of laser cutting equipment is sometimes not ideal, which affects the subsequent processing process. So what factors affect the processing accuracy?

1. Processing raw materials

When laser cutting machine processes metal, the cutting accuracy of different raw materials is different. Even if it is the same raw material, if the composition of the data is different, the cutting accuracy will be different. Therefore, the workpiece raw material also has a certain impact on the laser cutting accuracy. Generally, the smoother the data, the higher the processing accuracy.

Therefore, when processing different metal raw materials, samples can be made in advance to determine the most suitable parameter settings for such raw materials.

2. Shape of laser beam of light

The beam of light emitted by the laser of the metal laser cutting machine is tapered, so the gap cut out is also tapered. The shape of the laser beam of light is also a major factor affecting the cutting accuracy of the metal laser cutting machine. The smaller the light spot after the laser beam is assembled, the smaller the slit and the higher the processing accuracy.

Under the condition of this tapered laser beam of light, the greater the thickness of the workpiece, the lower the accuracy, and therefore the larger the slit. Therefore, when machining metals of different thicknesses, the appropriate laser power can be selected to achieve better results.

3. The accuracy of the workbench

When metal laser cutting machine is processed, the worktable is sensational with the sensation of the laser head. The high-precision worktable is equipped with stable linear guides and stepper motors, and the cutting accuracy will be higher; if the worktable is uneven or other reasons, it will also affect the processing accuracy of the laser cutting machine.

4. Auxiliary gases and nozzles

In the process of metal laser cutting machine, the auxiliary gas and nozzle play the effect of cleaning and controlling the cutting speed. The uneven pressure and temperature in the airflow will cause the change of the airflow field density, and then the accumulation of light energy in the dry beam will form re-aggregation or beam of light divergence, which will affect the metal cutting accuracy.