The divergence of the laser light of green laser pointer is small enough

The divergence of the laser light of  green laser pointer is small enough
Figure 2-42 represents the cutting l mm thick ceramic films laser process parameters of A12O3 relationship. Ceramic cutting the use of smaller laser output power. Under the control of different power, cutting speed can be selected in a wide range. The tests showed that not to use high-power CW CO2 laser beam conditions, otherwise, it will lead to material rules cracks leaving the cutting failure. Hard and brittle ceramics (such as silicon nitride) on the turbine engine, cutting laser cutting speed than the wheel 10 times, it no tool wear, and can cut out any shape. The divergence of the laser light emitted by  green laser pointer is about 0.001 radian.
Made of transparent plexiglass pure polymethyl methacrylate, laser cutting, vaporization of methyl methacrylate. If you blow away the vapors of air flow pressure is sufficiently low (10kPa), the incision can be very clear. If the air pressure is higher in the molten material to form a vortex, so that the molten material solidified in the incision. In this case, about 1mm can be seen along the incision the upper band of white opaque. Different types of composite materials, and that different combinations. Two of the same nature or the combination of a variety of materials, laser cutting is not difficult. Therefore, the starting point of the laser light of  green laser pointer becomes focus of people.
Cutting performance of a completely different material combinations, the two general principle is to cut with better cutting performance of the material side, it is easier to get a good cut quality. Wire and cable industry, in order to connect the cable or recycling from scrap wire and cable heart, you need to remove the cable has a plastic layer. Copper heart in the laser beam laser with high reflectivity and high thermal conductivity of string, the outsourcing of copper insulating layer can be easily cut copper heart circumference can not be cut and preserved. Laser with high energy density and power, tens of thousands of volts of high laser device, laser cutting must pay attention to safety, to avoid a variety of personal injury accidents. The laser light of  green laser pointer  irradiates pointing to one direction.
The laser device reliable grounding, maintenance door interlock should be, Capacitor discharge measures. The laser processing equipment should be equipped with the obvious danger signs and signals. CO2 laser of the human eye can not see the laser optical system should be completely closed, and set at a higher position, especially outside the optical system with metal tube closed the pass in order to prevent direct exposure to the human body.