The influence of laser cutting machine lens pollution on cutting quality and cleaning methods

As an important equipment in modern industry, laser cutting machine is famous for its high precision and high efficiency. However, the lens pollution problem of laser cutting machine often becomes a key factor affecting cutting quality. This article will deeply explore the influence of laser cutting machine lens pollution on cutting quality, and introduce the effective methods of cleaning lens in detail.

1. The influence of lens pollution on cutting quality

The lens of laser cutting machine, especially focusing lens and protective lens, is a key component of laser beam transmission. Their cleanliness is directly related to the accuracy and efficiency of laser cutting. Lens pollution mainly comes from dust, oil, metal debris, etc. in the working environment. When these pollutants adhere to the surface of the lens, it will cause the laser beam to scatter or absorb, thus affecting the cutting effect.

‌Decrease in cutting accuracy‌: Lens pollution will cause the focus point of the laser beam to deviate, causing the cutting path to deviate from the preset trajectory, resulting in a decrease in cutting accuracy. This not only affects the appearance quality of the product, but may also cause damage to the product function.

‌Poor cutting edge quality‌: Lens pollution may also cause problems such as yellowing and burrs on the cutting edge. This is due to the uneven distribution of laser beam energy, which makes the cutting material melt unevenly.

‌Shortened equipment life‌: The surface coating of the lens working in a polluted environment for a long time is easily damaged, which affects the light transmittance and heat resistance of the lens. This will not only reduce the cutting quality, but also accelerate the aging of the lens and shorten the service life of the equipment.

2. Lens cleaning method

In order to maintain the cutting quality of the laser cutting machine, it is essential to clean the lens regularly. Here are some effective lens cleaning methods:

‌Preparation‌: Before cleaning the lens, be sure to turn off the power of the laser cutting machine and wait for the equipment to cool completely. At the same time, prepare special lens paper, dust-free cloth, anhydrous ethanol and other cleaning tools.

‌Blow away floating objects‌: First, use a balloon or compressed air to gently blow away floating objects on the surface of the lens, such as dust, metal debris, etc. Note that you should keep a certain distance when blowing to avoid excessive airflow from damaging the lens surface.

‌Wipe the lens‌: Next, use a special lens paper or dust-free cloth to dip in a small amount of anhydrous ethanol and gently wipe the lens surface in one direction. Note that you should apply even force when wiping to avoid scratching the lens. For stubborn stains, you can slightly increase the number of wipes, but never use brute force.

‌Inspection and testing‌: After cleaning, carefully check whether there are any residues or scratches on the lens surface. If necessary, you can use a magnifying glass or microscope for inspection. Finally, turn on the laser cutting machine for test cutting to ensure that the cutting quality returns to normal.

3. Preventive measures

In addition to regular cleaning of the lens, you can also take the following preventive measures to reduce lens contamination:

‌Improve the working environment‌: Keep the working environment of the laser cutting machine clean and dry to reduce the generation of dust and oil. Air purification equipment can be installed or the ventilation volume of the working area can be increased to improve the air quality.

‌Regular maintenance of equipment‌: Regularly maintain the laser cutting machine, including cleaning the lens, checking the gas pressure and the position of the cutting head. This helps to detect and solve problems in time and prevent pollution problems from worsening.

‌Use high-quality protective lenses‌: Choose protective lenses with high light transmittance, good heat resistance and reliable quality, which can effectively reduce lens contamination and aging problems. At the same time, avoid using inferior protective lenses to avoid damage to the equipment.

IV. Conclusion

Laser cutting machine lens contamination is one of the important factors affecting cutting quality. Through regular lens cleaning, improving the working environment, regular equipment maintenance and the use of high-quality protective lenses, the lens contamination problem can be effectively reduced, and the cutting quality and equipment life can be improved. At the same time, users should also pay attention to the daily maintenance and care of the equipment during operation to ensure that the equipment is always in the best working condition.