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Laser cutting machine to increase gas pressure faults
by：Transon
2020-10-27
Laser cutting machine can increase the gas pressure ahead of the laser cutting speed, but after reaching a big value, continue to increase the gas pressure will cause the cutting speed.
With aid of the high gas pressure, the reason of lower cutting speed in addition to boil down to the high air velocity on and hang a district enhanced cooling effect, also may be intermittent shock waves that exist in the air of district cooling the action of the laser interference.
Exists in the airflow uneven pressure and temperature, can cause the change of airflow field density.
Such a density gradient caused internal refractive index change to dry properly focused beam energy, focus or beam divergence.
This kind of interference may affect the melting efficiency, sometimes may change the model structure, led to the decrease of the quality of the cutting, if the beam divergence too hard.
Make the light is too large, and even can't effectively cut the serious consequences.
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