Laser marking machines use laser beams to mark permanent surfaces of various materials. The effect of marking is to expose the deep material through the evaporation of the surface material, so that exquisite patterns, trademarks and words are carved out. The Laser Marking Machine is mainly divided into CO2 Laser Marking Machine, semiconductor laser marking machine and Fiber Laser Marking Machine. And YAG laser marking machine, laser marking machine is currently used in some of the more demanding, higher precision applications. Applied to electronic components, integrated circuits (IC), electrical appliances, mobile communications, hardware products, tool accessories, precision instruments, eyeglasses and clocks, jewelry, auto parts, plastic buttons, building materials, PVC pipe.
The principle of laser marking is to use the high energy density characteristics of the laser beam to act on the workpiece to vaporize the workpiece surface or chemically form traces to achieve the purpose of processing. The general laser marking system consists of a laser power supply system and a light guide system cooling system. Control system and work station and other components.
Laser marking is superior to chemical etching, mechanical punching, Piezoelectric spark writing, and other conventional methods because it does not contact the workpiece during the marking process. Laser marking has no special requirements on the material to be processed except for the laser that can effectively absorb the wavelength, and it has no loss, disturbance, or distortion on the workpiece, and the processing pattern is also flexible and diverse due to the use of computer control. The use of laser marking has a higher degree of automation and does not pollute the environment.
It is precisely because of this series of advantages of laser marking machines that it has gradually become the darling of the logo industry, and has a great tendency to replace traditional crafts. According to the principle of laser marking machine, we know that its main core technology is a laser. According to the type of laser, the laser marking machine can be divided into Co2 Laser Marking Machine, fiber laser marking machine, semiconductor laser marking machine and so on. They have demonstrated their skills in the industry and have firmly occupied the market. This article will explain the advantages of different types of laser marking machines in your application.
Semiconductor end-pumped laser marking VS fiber laser marking Semiconductor end-pumped lasers, with comparable beam quality to fiber lasers, not inferior to the fineness of marking; the same power consumption; fiber lasers are easily damaged, once damaged It is not easy to repair. In addition, many components in domestic fiber lasers rely on imports, so it is difficult to maintain; fiber lasers are expensive; fiber lasers are not easy to achieve too high output power.
Laser marking technology has been widely applied in all walks of life, opening up broad prospects for high-quality, high-efficiency, pollution-free and low-cost modern processing and production. With the continuous expansion of modern laser marking applications, the requirements for miniaturization, high efficiency and integration of laser manufacturing equipment systems are also increasing. New high-power fiber laser technology has been successfully developed, which is the market leader in occupying the market. The absolute power.
Semiconductor end-pumped laser-marking VS side-pumped laser-marking light-to-light conversion efficiency, output laser spot is small, beam quality is good, (M2<1.2), output laser stability is high, marking effect is easier to debug, hit The markings are finer and more suitable for some of the finer graphic symbols. The whole machine performance is stable, air-cooled to avoid the water tank, small size, low power consumption.
Semiconductor end-pump laser VS lamp-pumped solid-state laser electro-optical efficiency: The overall efficiency of DPSSL is an order of magnitude higher than that of flash-pumped solid-state lasers. Compared to flash pump sources, the emission spectrum of LD is very narrow and falls within the peak absorption spectrum of Nd3+ ions.
Beam Quality: The thermal effect within the laser crystal is reduced. In addition, in the end pump structure, the mode between the pump light and the low-order laser mode can be well matched to ensure the output beam quality.
Service life: LD can reach tens of thousands of hours of life under continuous working conditions, and up to 109 times of pulses under pulsed working conditions. In contrast, the lifetime of flash lamps is only 108 times and 2000 hours under pulsed and continuous working conditions respectively. .
Stability: The instability of LD-pumped solid-state lasers can usually be kept below 1 percent. There is a lot of noise and instability in the output power of the flash, which also leads to instability in the output power.
Compact and diverse structure: Semiconductor end-pumped lasers reduce peripheral cooling equipment and are highly efficient and compact.
Summary Although laser marking machines have penetrated into traditional industries, they have quickly become the darling. However, in China, the application of laser marking machines relative to laser technology mature countries is still not widely used and is limited by the industry. Of course, compared with traditional industries, laser marking technology has a great advantage. In general, the market demand for laser marking in China is large, and the road to development is still very long. Laser companies need to continue to break through the core technologies in order to be stronger, bigger and better, and contribute to the motherland's laser industry.
