Generally, people who are new to laser cutting machines like to stare at the cutting head. If you look at the sparks produced by cutting for a long time, it will hurt your eyes and cause stinging. During the processing of laser cutting machines, the characteristics of the laser emitted by the laser cutting machine can make the energy highly concentrated in space and time. The image is focused on the retina through the refractive medium of the eye, and the energy density on the retina is increased by 104~105 compared with the incident energy density on the cornea; the laser has good monochromaticity and small chromatic aberration in the fundus. As a result, extremely low laser energy irradiation can cause damage to the cornea or retina.
When laser irradiates the skin, if its energy (power) is too high, it can cause skin damage. Of course, the damage can be repaired by the tissue. Although the function is reduced, it does not affect the overall functional structure. If it is irradiated for a long time, it may cause burns and scars. Although the damage to the eyes is much lighter, it must also be taken seriously.
The high temperature generated by the laser cooperates with the gas to complete various processing. At the same time, a large amount of dust is also generated. Especially when processing some special metal materials, the smoke generated contains a large amount of chemical components. The dust will be suspended in the air and is harmful to the human body after inhalation.