In fact, when we use 6080 precision fiber laser cutting machine 150W QCW, many users often overlook a key factor during use - the purity of the auxiliary gas. So, what are the specific requirements for gas purity for this device? How does the choice of gas affect the cutting quality?
Nitrogen:
When processing metal materials such as stainless steel, nitrogen is an ideal auxiliary gas. High-purity nitrogen (99.99% and above) can prevent oxidation of materials during cutting and ensure smooth, burr-free cutting edges. For industries with high requirements for surface quality, such as electronic components, precision manufacturing, and medical devices, nitrogen cutting can effectively improve the appearance and performance of products.
Oxygen:
When cutting carbon steel, oxygen also plays a very important role. Oxygen not only helps combustion, but also improves the utilization rate of laser energy, greatly increasing the cutting speed. However, if the oxygen purity is not up to standard, impurities may be generated on the cutting section, affecting subsequent processing. Therefore, when using the 6080 precision fiber laser cutting machine 150W QCW, we recommend using 99.99% pure oxygen to ensure cutting stability and reduce unnecessary heat-affected areas on the material surface.
Compressed air:
For some materials, such as mirror steel, compressed air is a more cost-effective option. Compared with nitrogen and oxygen, the use of compressed air can reduce production costs to a certain extent while ensuring cutting quality. However, the purity of compressed air cannot be ignored. Impurities and moisture in the air may damage the cutting head and affect the long-term stable operation of the equipment. Therefore, it is recommended to use dry compressed air with a purity of 99.99% and equip it with an efficient filtration system to reduce the cutting instability caused by impurities.
Why is gas purity so important?
For high-precision processing equipment, the purity of the auxiliary gas directly affects the cutting quality, equipment life and production efficiency. If the gas purity is not up to standard, the cutting section may be rough, oxidized severely, the cutting speed may decrease, and even the laser optical components may be damaged. Therefore, whether you choose nitrogen, oxygen or compressed air, keeping the gas purity above 99.99% is the key to ensuring the cutting effect.
In addition, the application of environmentally friendly gases will also become the focus of the industry to achieve lower carbon emissions and higher energy efficiency. At present, some studies are trying to replace traditional nitrogen or oxygen with high-purity hydrogen to improve cutting efficiency while reducing carbon emissions. Hydrogen not only provides faster cutting speed, but also reduces the heat-affected zone and makes the material less deformed. We at Feiying are also paying attention to this dynamic in real time. If you are interested, you can communicate with us!