Here we will mainly introduce the comparison between Diode-pump Laser Marking Machine and YAG Lamp-pump Laser Marking Machine.Diode Pump Laser Marking Machine and Lamp-pump Laser Marking Machine are all based on the ND: YAG (neodymium-doped yttrium aluminum garnet) crystal as a laser-produced material, which can be converted 808nm visible laser to 1064nm not visible laser light, but another more critical factor of the output laser is the laser pump source which can make the crystal rod put out laser light, the Diode-pump Laser Marking Machineuses semiconductor diode-pumped to send out 808nm light waves; and lamp-pump use krypton lamp to issue lamp pump, but light sent out from the krypton lamp has wider light spectrum, with only one slightly larger peak in the 808nm Department, the light in other wavelengths eventually turned into useless heat dissipation out. Therefore, the conversion efficiency of Diode-pumped Laser Marking Machine is much higher than the Lamp-pump Laser Marking Machine. Benefits of Diode Pump Laser Marking Machine are as follows:

First, Diode-pump Laser Marking Machine has no need to change krypton lamp.

The life span of semiconductor diode is quite long, its rated working hours is larger than ten thousand hours, while the lifetime of krypton lamp is only several hundred hours (usually about 400-600 hours), as a result, lamp pump Laser Marking Machine need to change krypton lamp at work for some time, especially for the metal marking, more energy will be needed, the lifetime of krypton will be more affected.

Therefore, Diode Pump Laser Marking Machine is also called maintenance-free Laser Marking Machine, which means no working materialconsumption, no maintenance for quite a long time. According to different production tasks of different users, the lifetime of Diode-pump Laser Marking Machine can guarantee between one and three years.

related:http://www.lasermarkingsystem.org

The advanced fiber optic Laser Marking Machine

Fiber optic Laser Marking Machine is a Laser Marking Machine which use glass fiber optic doped with rare earth as the gain medium. Fiber Optic Laser Marking Machine is developed basing on fiber optic amplifier. It is quite easy to form high output density inside fiber optic under the action of pump light, resulting in laser energy level inversion.

Fiber optic Laser Marking Machine has very wide application including laser fiber optic communication, laser space long-distance communication, industrial shipbuilding, automobile manufacturing, laser engraving, laser marking, laser cutting, roller of printing system, drilling, cutting and welding of metal and nonmetals, military defense and security, medical devices equipment, major infrastructure projects and so on.

As the representative of the third generation laser technology, Fiber Optic Laser Marking Machine has the following advantages:The advantages miniaturization and intensification brought by the low processing cost and sophisticated technology of glass fiber optic Laser Marking Machine, and the routability of fiber optic.Glass material has a very low volume area ratio, quick thermal dissipation, low consumption, thus conversion efficiency is very high and laser threshold is low. The wavelength of output laser is long, which is because of the rich energy level and various kinds of rare-earth ions. Coordinability of Laser Marking Machine: since the energy level of rare earth ions and fluorescence spectrum of glass fiber optic are all quite wide. Because there is no optical glasses inside of the resonant cavity of fiber optic Laser Marking Machine, with the advantages of adjustment free, maintenance free and high stability, which the traditional Laser Marking Machine cannot compare with. Fiber derived can make the fiber optic Laser Marking Machine can be capable to multi-dimensional space process easily, which has made it easy for the design of mechanical system.Fiber optic Laser Marking Machine can compete with poor working environment, which has quite high level tolerance to dust, shock, humidity and temperature. There is no need of thermoelectric cooling and water cooling, but a simple air cooling during the orking of Fiber Optic Laser Marking Machine. High electro-optical efficiency of Fiber Optic Laser Marking Machine: the integrated electro-optical efficiency can reach as high as 20%, which has greatly saved the power consumption and operating cost. High output power of fiber optic Laser Marking Machine, the output power of commercial fiber optic Laser Marking Machine available is six kilowatts.

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CO2 laser marking machine in metal marking areaAt present time, almost all kinds of metal marking processing uses Nd:YAG Laser Marking Machine. However, low power CO2 laser marking machine can also be used to mark on various kinds of metal materials including low carbon steel and stainless steel, chromium nickel-iron alloy and titanium and so on. 60W air cooling CO2 laser marking machine has the advantages of quick pulse rise time, high quality laser beam and so on, and thus especially suitable for metal marking. This Laser Marking Machine can assemble with galvanometer type marking to form a pocket-sized packaging system.

The CO2 laser marking machine has the advantage of small footprint and low cost comparing with YAG laser marking machine. In the face of various working piece marking requirement in various industry field, such as printing characters, patterns, barcodes and other codes, CO2 laser marking machine will own large application market.

50-200W CO2 Laser Marking Machine is usually use in usually metal marking work. There are surface melting marking and surface non-melting markings. In non-surface melting, surface oxidation discoloration can form the mark while the materials are heated by focusing laser beam. In surface melting, the increasing laser radiation is needed to melt the metal surface, and then the melted surface solidified to form the mark. The type of mark is decided by the quantity of input laser energy, protecting gas type of marking and the materials.

CO2 laser marking machine is quite useful in metal marking area, and CO2 laser marking machine will have larger and larger market in various marking work.

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Laser marking technology in glass processing industry

It has been a long time that the Laser Marking Machine technology used in glass marking process. How to improve the marking quality has constantly a big problem. With the development of the sealed-off CO2 laser marking machine, usually a 25w CO2 laser marking machine is enough, has made it no longer a problem to worry about any damage during the laser marking work on glass.

Comparing with solid state CO2 Laser Marking Machine and other traditional marking tools, this CO2 Laser marking machine has made us no need to worry about the quality problem of glass products.

According to destroy the glass surface to mark through Laser Marking Machine, it is always admitted to have a certain number of cracks, while over power mark will make unclear mark on glass, and more serious thing is that the internal material of glass will become loose.

Generally we have three ways to control the cracks number and crack type of glass surface: the first is the adoption of multiple laser radiation, the adoption of discrete points to get ring cracks is the second methods, and the third method is to get crack type crack. When we decide which method to use while using the laser marking machine, we should have a clear and careful analysis of the glass type and pattern requirement. The proper use of CO2 Laser Marking Machine in glass marking process will help us get fine and high quality laser mark.

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Laser Marking Machine technology is one of four great technological inventions of twentieth century among atomic energy, semiconductors, and computer. Laser is featured by quite good monochromatic, coherence, directionality, which can accumulate quite high energy density in small area, and especially suitable for material process. In laser century, the laser marking technology rise in international community quietly and quickly become a largest application area of laser technology. Laser marking technology adopts computer control system as processing method. Here we will introduce the working principle of laser marking technology:

Computer controlled high-energy density focused laser beam works on working piece surface of mechanical parts, electronic components, instruments and meters which need to mark according to predetermined trajectory, which could vaporize the surface material instantaneously or undergo chemical changes to change the color, etch out characteristics, patterns with a certain depth or color, so as to leave a permanent mark on working piece surface.

Laser marking technology, as a modern sophisticated proceeding method, has unparalleled advantages while comparing with traditional corrosion, electric spark machining, mechanical characterization, and printing.

1. Laser Marking Machine, with no processing power with work piece, has the advantages of non-contact, no cutting force, small heat effect, which ensure the original precision of work piece. At the same the time, the broader adaptability can make the mark fine and durable on various material surfaces.

2. The perfect time controlled and space controlled of laser marking has provides large freedom of process material, shape, size, and process environment, which is especially suitable for automatic processing and special surface processing. Besides, the flexible processing can adapt to meet need of individual design of laboratory style and mass production requirement of industrialization as well.

3. The fine and precise laser carving line of Laser Marking Machinecould reach millimeters or microns, and it is hard to counterfeit and change the mark made by laser marking technology, which is quite important to anti-counterfeit of products.

4. The combination of laser processing system and computer control can constitute a highly efficient automatic processing equipment, which can make various characteristics, signs and patterns, which is easy to use the software design, change marking pattern, and adapt to high efficiency and fast pace requirement of modern production.

5. Laser marking technology has no pollution, which is a clean and non-pollution high environmental processing technology. Laser marking technology has been widely applied in various industries, which has opened up broad prospect for high quality, high efficiency, non pollution and low cost modern processing. With the constant expansion of application area of modern Laser Marking Machine technology, the requirement of miniaturization, high efficiency and integration of laser manufacturing equipment is higher and higher, and the success of new high power and high efficiency fiber laser technology must produce a big boost.

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