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The stability of air pressure during laser cutting is of paramount importance

  The speed of the popularity of laser cutting machine may not even foresee the inventor will be so fast it, with the rapid development of these years, the industry constantly updated upgrade, the processing requirements of the upgrade, in the cutting process requirements are more and more The more detailed.

  The use of laser cutting machine, a good cutting effect can not be separated from a variety of gas auxiliary, in addition to the purity of auxiliary gas requirements, cutting process for high pressure requirements are also.

In the laser cutting process, the auxiliary gas must have sufficient pressure to be able to completely clear the waste residue produced by cutting, usually in the cutting of a thick workpiece when the pressure to reduce a little, stick to the residue on the workpiece will damage the cutting edge.

  Increasing the gas pressure can advance the cutting speed, but after reaching a maximum, continue to increase the gas pressure but will cause the cutting speed to decline. In the case of high auxiliary gas pressure, the reason for the decrease of the cutting speed can be attributed to the enhancement of the cooling effect of the high airflow velocity and the action zone. It may also be the interference of the intermittent shock wave in the airflow to the cooling of the laser action zone. There is a non-uniform pressure and temperature in the airflow that can cause changes in the airflow field density. Such a density gradient results in a change in the field refractive index, which causes the focus of the beam to focus, resulting in refocusing or beam divergence. This interference can affect the melting efficiency, and sometimes may change the mode structure, resulting in cutting quality degradation, if the beam divergence too much. So that the spot is too large, and even can not be effectively cut the serious consequences.

  The speed of laser cutting machine may not even foresee the inventor will be so fast it, with the rapid development of these years, the industry constantly updated to upgrade the processing requirements, in the cutting process requirements are more and more meticulous operation.