In the process of metal laser cutting machine, the auxiliary gas and nozzle play a role in cleaning and controlling the cutting speed. The uneven pressure and temperature in the air flow will cause the change of the air flow field density, which will dry up the focusing of the beam energy, cause refocusing or beam divergence, and affect the metal cutting accuracy.
Air nozzle (also known as nozzle) is undoubtedly very important in laser cutting machine, because the use of air nozzle will have a great impact on laser beam.
The gas nozzle of metal laser cutting machine (also known as nozzle) is a consumable item. Because the spark splashes on the gas nozzle and burns the bottom light outlet during long-term use, it usually needs to be replaced every 3 months. The laser adds an anti-collision function for the laser cutting head to prevent the cutting head from bumping the gas nozzle due to misoperation. Some operators in the sheet metal factory are very careful and operate in a standard way, and have not bumped the laser head for 8 months, Clean the impurities on the laser head in time after work every day, adjust the light path before starting the processing every day. The gas nozzle has not been replaced for 8 months, and it is still brand new when the gas nozzle is removed. Therefore, it is recommended to maintain the cutting head every day, which is beneficial to extending the life of the gas nozzle consumables of the metal laser cutting machine.