The Factors Affecting Metal Laser Cutting Machines Machining Accuracy

Q: What are the factors that affect the Machining accuracy of metal laser cutting machines?
 
A: Compared with traditional Machining technology, metal laser cutting machine has higher Machining accuracy and better cross-sectional effect, without secondary Machining. This is also the reason why many laser cutting shop choose metal laser cutting machine. However, many companies have found that the cutting accuracy of laser cutting equipment is sometimes not ideal, which affects the subsequent Machining flow. So what factors affect the machining accuracy?

1. Machining material
 
When the laser cutting machine processes metal, the cutting precision is different for different materials. Even if it is the same material, if the composition of the material is different, the cutting accuracy will be different. Therefore, the cnc manufacturing material of the workpiece also has a certain influence on the laser cutting accuracy. Generally, the smoother the material, the higher the Machining accuracy.
 
Therefore, when Machining different metal materials, you can make samples in advance to find out the most suitable parameter settings for such materials.
 
2. The shape of the laser beam
 
The beam emitted by the laser of the metal laser cutting machine is cone-shaped, so the cut gap is also cone-shaped. The shape of the laser beam is also a major factor affecting the cutting accuracy of a metal laser cutting machine. The smaller the spot after the laser beam is concentrated, the smaller the slit and the higher the Machining accuracy.
 
Under such conical laser beam conditions, the greater the thickness of the workpiece, the lower the accuracy, and therefore the larger the slit. Therefore, when 5 Axis Machining metals of different thicknesses, choosing the right laser power can achieve better results.
 
3. The accuracy of the workbench
 
When metal laser cutting machine is Machining, the worktable vibrates with the vibration of the laser head. A high-precision worktable with a stable linear guide and a stepping motor will increase the cutting accuracy; if the worktable is uneven or other reasons, it will also affect the Machining accuracy of the laser cutting machine.
 
4. Assist gas and nozzle
 
During the Machining of metal laser cutting machine, the auxiliary gas and nozzle play the role of cleaning and controlling the cutting speed. The uneven pressure and temperature in the airflow will cause changes in the density of the airflow field, which will constrict the focus of the beam energy, cause refocusing or beam divergence, and affect the accuracy of metal cutting.

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