Product overview and industry application of fiber laser marking machine

Fiber lasers have become a hot spot in laser physics research in recent years, and are unanimously considered to be a new generation of products that have the potential to completely replace solid-state lasers. The so-called fiber laser marking machine means that the marking machine uses a fiber laser. The fiber laser has the characteristics of small size (no water cooling device, air cooling), good beam quality (fundamental mode), maintenance-free, etc. It is composed of three parts: galvanometer lens and marking card. It uses fiber laser to produce laser marking machine. The beam quality is good, its output center is 1064nm, and the life of the whole machine is about 100,000 hours, which is longer than other types of laser markers. Compared with other types of laser marking machines, the conversion efficiency of 2%-10% has a great advantage, and it has outstanding performance in energy saving and environmental protection.

Equipment features

1. It can process a variety of metal and non-metal materials. In particular, it is more advantageous to mark high hardness, high melting point and brittle materials.

2. It belongs to non-contact processing, does not damage the product, has no tool wear, and has good marking quality.

3. The laser beam is thin, the processing material consumption is very small, and the processing heat affected zone is small.

4. High processing efficiency, computer control, easy to realize automation.

Applications

Widely used in integrated circuit chips, computer accessories, industrial bearings, watches, electronic and communication products, Aerospace devices, various auto parts, home appliances, hardware tools, molds, wires and cables, food packaging, jewelry, tobacco and military affairs and many other fields of graphics and text marking, as well as mass production line operations.

Main Features

Fiber lasers are divided into two categories: continuous fiber lasers and pulsed fiber lasers. According to the power size:

1. Continuous 5W, 10W, 20W to 400W, 4000W;

2. Pulse 10W , 15W, 20W, 25W, 30W to 50W.

Fiber laser marking machine is the most advanced laser marking equipment in the world today, with good beam quality, small size, fast speed, long working life, flexible and convenient installation and maintenance-free Features. Fiber laser, the latest international model, the most reliable structure, small size, low power consumption, no high voltage, no need for a huge water cooling system (only about 300W), high beam quality, close to ideal beam, USB interface output control, optical scanning vibration Mirror, laser repetition rate is high, high speed without distortion.

Future Advantages

(1) Low manufacturing cost of glass fiber, mature technology and the flexibility of fiber

(2) Glass fiber does not need strict phase matching like crystal for incident pump light, this is because the glass matrix Stark The non-uniform broadening caused by the splitting causes the absorption band to be wider;

(3) The glass material has a very low volume-to-area ratio, fast heat dissipation and low loss, so the up-conversion High efficiency and low laser threshold;

(4) The output laser wavelengths are many: this is because the energy levels of rare earth ions are very rich and there are many types of rare earth ions;

(5) Tunability: due to the wide energy level of rare earth ions and the wide fluorescence spectrum of glass fibers.

(6) Since there is no optical lens in the resonant cavity of the fiber laser, it has the advantages of adjustment-free, maintenance-free and high stability, which is unmatched by traditional lasers.

(7) The fiber export makes the laser easily competent for various multi-dimensional and arbitrary space processing applications, making the design of the mechanical system very simple.

(8) Competent in harsh working environment, with high tolerance to dust, shock, shock, humidity and temperature.

(9) No need for thermoelectric cooling and water cooling, just simple air cooling.

(10) High electro-optical efficiency: The comprehensive electro-optical efficiency is as high as 20% or more, which greatly saves power consumption during work and saves operating costs. High power, commercially available fiber lasers are six kilowatts.

Routine maintenance

When the machine is not working, the power of the marking machine and the computer should be cut off.

When the machine is not working, cover the field lens lens to prevent dust from contaminating the optical lens.

When the machine is working, the circuit is in a high voltage state. Non-professionals should not repair it when it is turned on to avoid electric shock accidents.

Any malfunction of the unit should be cut off immediately.

When the equipment is used for a long time, the dust in the air will be adsorbed on the lower end surface of the focusing mirror. The light ones will reduce the power of the laser and affect the marking effect; the heavy ones will cause optical lenses. Endothermic overheating to burst. When the marking effect is not good, the surface of the focusing mirror should be carefully checked for contamination.

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