Types and classifications of laser marking machines

At present, the most common laser marking machines on the market are mainly CO2 laser marking machines and YAG laser marking machines. Later, YAG laser marking machines were gradually replaced by semiconductor laser marking machines and became laser marking machines. A model with the largest market share, as well as high-end end-pumped laser marking machines, fiber laser marking machines, and ultraviolet laser marking machines.

With the development of science and technology, the fiber laser marking machine in the electronics industry is more and more accepted by more and more people. Its characteristics are very obvious: integrated design, small size, low power consumption, long life, high Efficient, maintenance-free, with high-quality laser beam, fine spot, no consumables.

First, product classification

<1>By laser

Laser marking machine can be divided into: CO2 laser marking machine, semiconductor laser marking machine according to different lasers Labeling machine, YAG laser marking machine, fiber laser marking machine. According to the different laser visibility, it is divided into: ultraviolet laser marking machine (invisible), green laser marking machine (visible laser), infrared laser marking machine (invisible laser)

<2>By wavelength< /p>

According to the different laser wavelengths, it can be divided into: deep ultraviolet laser marking machine (266 nm), green laser marking machine (532nm), lamp pump YAG laser marking machine (1064nm), semiconductor side pump YAG Laser marking machine, semiconductor end pump YAG laser marking machine (1064nm), fiber laser marking machine (1064nm), CO2 laser marking machine (10.64um).

Distinguish

Laser wavelengths are different

★Deep UV laser marking machine: 266 nm

★Green laser marking machine: 532nm

★ Lamp-pumped YAG laser marking machine: 1064nm

★ Semiconductor side-pumped YAG laser marking machine, semiconductor end-pumped YAG laser marking machine: 1064nm

★Fiber laser marking machine: 1064nm

★CO2 laser marking machine: 10.64um

<3>The working principle is different

★ Lamp pumped YAG Laser marking machine: Krypton lamp is used as the energy source (excitation source), ND: YAG is used as the medium for generating the laser, and emitting a specific wavelength can promote the transition of the production energy level of the working substance to release the laser, and amplify the laser energy to form the material processing. laser beam.

★CO2 laser marking machine: The CO2 gas is charged into the discharge tube as a medium for generating laser light, and a high voltage is applied to the electrode, and a glow discharge is generated in the discharge tube, causing the gas molecules to release laser light, After the laser energy is amplified, a laser beam for material processing is formed.

★Semiconductor side-pumped YAG laser marking machine: use a semiconductor laser diode with a wavelength of 808nm to pump the Nd: YAG medium, so that a large number of reversed particles are generated in the medium to form giant particles with a wavelength of 1064nm under the action of Q-switching. Pulse laser output, high electro-optical conversion efficiency.

★Semiconductor end-pumped YAG laser marking machine: The semiconductor pumping light (808nm) is pumped directly from the end face of the laser crystal, and the laser is output through the optical mirror group. The line light conversion efficiency is greatly improved.

★Fiber laser marking machine: The laser is output directly from the optical fiber.

★Green laser marking machine: The green laser marking machine is developed by using the most advanced laser pumping technology (side pumping or end pumping) with a wavelength of 532nm in the world.

Marking range

▼CO2 laser marking machine: mainly used for non-metal (wood, acrylic, paper, leather, etc.), and the price is cheap.

▼Green laser marking machine, UV laser marking machine: mainly used for high-end ultra-fine IC and other products. The price is higher, and the product is mainly customized.

▼ Lamp-pumped YAG laser marking machine: mainly used for metal, plastic and other low-demand products, the price of laser marking machine is moderate.

▼Semiconductor side pump laser marking machine: It has the same use surface as the lamp pump YAG laser marking machine, but it is more stable and the price is moderate.

▼Semiconductor end-pumped laser marking machine: It has the same use surface as the lamp-pumped YAG laser marking machine, which is stable and power-saving, but it is used for high-end production, and the price is higher.

▼Fiber laser marking machine: fine marking, power saving, maintenance-free, used for high-end products such as mobile phones and buttons. Prices are high.

<3>Semiconductor type

The light source uses a semiconductor array, so the light conversion efficiency is very high, reaching more than 40%; the heat loss is low, and there is no need for a separate cooling system ; Low power consumption, about 1800W/H. The performance of the whole machine is very stable, and it is a maintenance-free product. The maintenance-free time of the whole machine can reach 150,000 hours, which is equivalent to 10 years of maintenance-free. There is no replacement of krypton lamps and no consumables.

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