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Views: 46 Author: Site Editor Publish Time: 06-01-2024 Origin: Site
Since laser cutting belongs to the category of thermal processing industry, if you are not careful during operation, it will cause problems such as edge burning. The overburning phenomenon of laser cutting metal machine seriously affects the cutting quality and material use efficiency. Only by solving the overburning problem can the efficiency and quality of laser cutting be improved.
Laser cutting overburning refers to the excessive energy received by the material during cutting due to improper laser parameter settings and other factors. This excessive heat can easily cause the material to melt or burn.
Irregular cutting edge: Overburning will make the cutting edge uneven or even bumpy. Affects the overall appearance and precision of the finished product.
Increased heat-affected zone: The high temperature caused by overburning will expand the heat-affected zone. This may change the microstructure of the material and affect the mechanical properties of the material.
Material melting: The material in the laser action area may be over-melted, forming a large number of droplets or burning through. These droplets may adhere to the cut piece and must extra processes for cleaning.
Laser power determines the cutting speed and effect. When the laser power is set too high, the material will absorb too much energy in a short time. Different materials and thicknesses correspond to different laser powers, and setting the appropriate laser power is crucial.
The cutting speed determines the length of time the laser contacts the material. If the cutting speed is too slow, the laser will stay at a certain point for too long, resulting in local overburning.
The focus position affects the quality and energy distribution of the laser beam. Improper focus setting may cause uneven laser and increase the risk of overburning.
The auxiliary gas can blow away the slag produced by cutting and cool the surface of the material. If the gas flow and pressure are set improperly, it is easy to cause incomplete blowing away of the slag or insufficient cooling. This will cause overburning.
Overburning may affect the entire production process and product performance:
Overburning will cause ablation marks, melting or irregular shapes on the cutting edge. This will reduce the appearance quality and dimensional accuracy of the finished product.
Different industries have different requirements for material cutting accuracy. Severe overburning may greatly increase material waste and cost.
Defects caused by overburning often must secondary processing. The processing process may need extra grinding, polishing, etc. This not only increases production costs but also prolongs the production cycle.
For load-bearing or structural parts, overburning may change the microstructure of the material and reduce its mechanical strength and durability. This will affect the performance and safety of the final product.
Excessive heat may cause excessive smoke and harmful gases to be produced during cutting. This not only affects the operating environment but may also pose a threat to the health of the operator.
Select materials of different types and thicknesses and experiment to find the best power setting. Usually, you can start with the parameters recommended by the manufacturer and gradually adjust until you find the best point.
Increase the cutting speed to reduce the contact time between the laser and the material and reduce the risk of overburning. Cutting tests are carried out to determine the fastest workable speed while maintaining cutting quality.
Ensure that the laser focus is accurately set to the correct position, which can be done using the focus calibration tool. Fine-tuning the focus position can significantly affect the cutting quality and overburning.
Select the appropriate auxiliary gas according to the material type. Adjust the gas flow and pressure to ensure effective cooling and slag removal.
Regularly check and maintain the laser equipment to ensure that all parameters are accurate. Avoid parameter deviations caused by equipment aging.
Train operators to improve their ability to deal with overburning problems.
Correctly understanding and dealing with the overburning phenomenon of laser cutting metal machine can ensure the quality and efficiency of cutting. If you have any other questions or want to get more information, please contact us!
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