How To Judge The Processing Quality Of Laser Cutting Machine?

For laser cutting processing, the evaluation of its processing quality mainly includes the following principles:

1. Smooth cutting, no streaks, no brittle fracture;

2. The slit width is narrow, which is mainly related to the diameter of the laser beam spot;

3. The verticality of the slit is good, and the heat affected zone is small;

4. No material burning, no molten layer formation, no large slag;

5. The surface roughness of the incision, the size of the surface roughness is the key to measure the surface quality of laser cutting.

In addition to the above principles, the state of the melted layer and the final shape during processing directly affect the above processing quality evaluation indicators.

The surface roughness of laser cutting mainly depends on the following three aspects:

1. The inherent parameters of the cutting system, such as spot pattern, focal length, etc.;

2. Adjustable process parameters in the cutting process, such as power, cutting speed, auxiliary gas type and pressure, etc.;

3. The physical parameters of the processed material, such as laser absorptivity, melting point, viscosity coefficient of molten metal oxide, surface tension of metal oxide, etc. In addition, the thickness of the workpiece also has a great influence on the surface quality of laser cutting. Relatively speaking, the smaller the thickness of the metal workpiece, the higher the cut surface roughness grade.