Successful practices such as: a profiling milling most cutting the amount of complete (heavy cutting) left in the 2-3mm allowance, the remaining amount of cutting done quickly in a high-speed machine tools, to do so has many advantages: weight cutting machine tools, processing fees low. Processing volume, accuracy is not easily reach. Tool cheap. Transferred to high-speed cutting, forming, because the processing object is close to the first knife cutting is very uniform. Forming fast and accurate. Free too polished, with the precise size. Although the tool is expensive, but time is short, cutting the amount of good performance and low cost rate. A lot of nuances. Therefore, the manufacturer will focus on the continuous wave output of green laser pointer during the production of the laser pointer.
Such as small angle conductance, detailed processing in one step instead of spark to help fast and excellent surface finish (mirror effect). It seems that the coordination of equipment this is the way to win, because it is the remaining amount of 2-3 mm in the work of stage XY two calibration G54 tailgate to complete the workpiece clamping, and for cutting small amount of the workpiece directly in high-speed machine tools. Another issue to be discussed is the issue of the spindle. Because they require low speed twisting, so be sure to spindle gearbox reduction ratio to improve the speed of the torque accuracy is inevitable, so is unlikely to use a small radius tool for CNC milling and machining centers. The continuous wave output of laser pointer should be taken good care during production.
For engraving and milling machine, spindle work around 20,000-30,000 RPM before work, turning precision generally 2 μ, or the cutting knife phenomenon all very serious, so be sure to electric spindle motor and spindle are one. For high-speed cutting equipment is concerned, the requirements of the Built-in electric spindle with torque have oil and water coolers to maintain spindle temperature constant, but also in the low speed spindle power to more than 7.5-8KW, speed over 25000RPM . New developments in laser treatment of children with skin hemangioma. Laser Medicine is one of today's rapidly developing field of medicine, there has been a variety of laser treatment of vascular tumor, its effect is significant, side effects, has become a commonly used method for the treatment of some children's skin hemangioma. The performance of the continuous wave output of green laser is good enough.
Laser and light are very different from, it is the substance by stimulated emission of radiation luminescence and the bundle of light. The high brightness of laser energy density, is the brightest source in the world today. Strong laser brightness up to sunlight brightness of 10 million billion times. When this light energy into heat energy, you can instantly produce a few thousand to tens of thousands of degrees of heat. The laser is a bundle of approximately parallel light, and it fired only in one direction, a very small divergence angle, long range, can form a very small point of light focused by a lens. Laser high brightness, monochromatic, directional and coherent laser energy in time and space, the spectrum is highly concentrated. So that the good and continuous use and operation of green laser led can be ensured.
These characteristics of the laser allows the laser beam to high energy can be focused to a small spot, ideal for precision cutting and gasification operations. Intense laser irradiation of biological tissue, can instantly generate hundreds or even thousands of high temperature, protein denaturation and coagulation of the thermal effects of the biological organization, even to the carbonization or gasification [1]. Can be divided into two parts by mechanical action produced by the laser irradiation, the pressure generated by laser radiation pressure on biological tissue, ie, pressure, known as time pressure, because the laser energy density, which will have a huge radiation pressure, laser generate pressure up to 104 ~ 105 Pa; caused by thermal expansion and phase transitions, as well as ultrasound, shock wave, electrostriction and other biological tissue absorption of strong laser-induced pressure, called secondary pressure. green laser pointer has attracted many customers in the domestic and oversea market.
No comments:
Post a Comment