The manufacture enriches the top selling list of green laser pointer

Top Selling of green laser pointer
Figure (a), along the steep wave front, the big bell at the inlet hole, the middle of a larger taper, ending the most pointed, the worst-shaped hole; (b) before and after the waveform along the steep, wave was flat shape, the trumpet entrance hole decreases, the middle section of the taper hole decreases, ending blunt tip, hole shape is relatively good; (c) is a complex waveform modulation to obtain a laser pulse, along the steep slope before and after the middle section of the upward wave, the smallest bell inlet hole, the hole was cylindrical middle section, if the laser intensity increased with increasing hole depth to match the ending twist drill hole near the bottom, was round-shaped nest. The manufacture enriches the top selling list of green laser pointer .
This is because the laser light intensity and gradually increase to compensate for the increase in hole depth to reduce the incident energy, the smaller taper, the laser along the steep, high power is conducive to their discharge of liquid substances, the minimum recast layer, and thus the hole at the end of the shape of the best. Focus position: negative defocus, due to convergence of the laser light to enter the material, the hole depth is certain, it can not be directly affected by the pore wall flux, but by its phase-change heat transfer, so the less liquid than gas, vapor, when pressure is not too large, jet force is small, there is a greater residue accumulation may melt the hole wall deformity, and in severe shot hole has been completely blocked. With negative defocus amount punch, hole or shaft barrel was tapered profile. The top selling list of green laser pointer contains all products which are welcome in the market.
Is out of focus and in a certain range of values, because the laser light shines directly on the pore walls, so that the hole wall directly affected by the flux, sometimes after several reflections before being shot hole, so the phase change material is almost directly in the laser light exposure occurs, as long as there is enough light power density, the material gas than liquid. Pore walls are straight, not easy to melt residue accumulation, hole shape the best quality. Is out of focus and defocus amount is large, the material on the surface of a large deviation from the focal plane, the material on the surface of the average light power density is too small, only a small amount of material vaporized, liquefied, or only make it so often can only form a pit, you can not punch. Defocus amount the size of the selection: the thickness of the part to be machined, the aperture size and other factors.