CO2 laser marking machine diode laser marking machine fiber laser marking machine what are the simil

Classification of lasers for CO2 laser marking machines, semiconductor laser marking machines, fiber laser marking machines.

At present, laser marking machines have different classification methods for lasers, which are generally classified according to the different working media, and can be divided into solid-state lasers, gas lasers, liquid lasers and semiconductor lasers. In addition, according to the different laser output methods, it can be divided into CW laser and pulsed laser, in which the peak power of pulsed laser can be very large, and it can also be classified according to the frequency and magnitude of luminous power.

1. Solid-state lasers.

Generally speaking, solid-state lasers have the characteristics of small devices, ruggedness, easy to use, and large output power. The working medium of this laser is to homogeneously incorporate a small amount of activating ions into the crystal or glass as a matrix material, in addition to the ruby and glass described above, the commonly used laser is a laser doped with trivalent neodymium ions in yttrium aluminum garnet (YAG) crystals, which emits a near-infrared laser of 1060nm. Solid-state lasers generally have a continuous power of more than 100W and a pulse peak power of 109W.

2. Semiconductor lasers.

Semiconductor lasers use semiconductor materials as the working medium. At present, the more mature is the gallium arsenide laser, which emits 840nm laser. There are also lasers such as gallium arsenide and chromium sulfide and zinc sulfide doped with aluminum.

The excitation methods include optical pumping, electric excitation, etc. This laser is small in size, light in weight, long in life, simple and robust in structure, especially suitable for use in aircraft, vehicles, and spacecraft. In the late 70s, the development of semiconductor lasers was greatly promoted by the development of fiber optic communication and optical disc technology.

3. Gas lasers.

Gas lasers have simple structure and low cost; Easy to operate; The working medium is uniform, and the beam is ***; And it is possible to work continuously for a long time more stably. This is also the most diverse and widely used laser at present, accounting for about 60 of the market. Among them, the helium-neon laser is the most commonly used.

4. Liquid lasers.

Dye lasers are commonly used, and organic dyes are used as the most working medium. In most cases, organic dyes are dissolved in solvents (ethanol, acetone, water, etc.), and some work in a vapor state. Different dyes can be used to obtain different wavelengths of laser light (in the visible range).

Dye lasers generally use lasers as a pumping source, such as argon ion lasers, which are commonly used. The working principle of liquid lasers is complex. The continuously adjustable output wavelength and wide coverage are its advantages, making it also widely used.

The similarity is that they are all used for laser marking, and the power is generally not very large, almost all of them are moved by the galvanometer system, the efficiency is relatively high, and the marking accuracy is also high.

Oh, it's simple, they all have a few words of laser marking machine, and the same point is that they are all used to scan the object with a laser to form a certain mark.

The common denominator, the laser mark is clearly visible, and it is not necessary to take it off.

The CO2 laser marking machine uses CO2 gas as the working medium, and uses the CO2 laser to generate a high-energy laser beam, which is locally irradiated on the surface of the parts to be processed, so that the surface material of the workpiece is vaporized instantly, revealing the material below the surface. After laser marking, the surface of the processed parts will produce physical and chemical changes, so as to meet the requirements of users to engrave images, words, numbers and lines. CO2 laser marking machine is mainly used for leather marking, wood marking, ceramic marking, etc.

The semiconductor laser marking machine uses a wavelength 808nm semiconductor laser diode to pump the ND:YAG medium, so that the medium produces a large number of inverted particles, and forms a giant pulse laser output with a wavelength of 1064nm under the action of the switch, with high electro-optical conversion efficiency, this laser is small in size, and its high peak pulse power is suitable for playing highly reflective materials and painting and injection molding products.

The fiber laser marking machine uses a fiber laser to output a laser, and then realizes the marking function through the high-speed galvanometer scanning system. The optical conversion efficiency of fiber laser marking machine is high, which greatly saves electrical energy. It is cooled by air cooling, with good heat dissipation performance, no need for air conditioning and water circulation system, optical fiber can be coiled, the whole machine is small in size, the output beam is high, the resonator cavity has no optical lens, and it has the performance of adjustment-free, maintenance-free, and high reliability;

Carbon dioxide and semiconductors mainly focus on materials differently, one focuses on non-metals, the other focuses on metals, optical fibers are more advanced than the first two, high power, high brightness, high precision. In fact, the above three categories can be played metal and non-metal, but there is a difference between the art industry.

CO2 laser marking machines are mainly used for non-metallic materials, but after a period of use, they need to be inflated (carbon dioxide gas).

The diode laser marking machine is mainly for metal materials, and it can also be processed for a small number of non-metals, and the accessories need to be replaced after a period of use (generally can be used for several years).

The fiber laser marking machine can make metal and non-metal materials, simply put, it combines the functions of carbon dioxide and non-metal, and the speed is more than 3 times that of semiconductors, and it is the most advanced laser marking equipment at present without changing accessories for 100,000 hours.

CO2 laser marking machines are mainly used for marking non-metallic materials, such as plastic, glass, etc., but after a period of use, they need to be inflated (carbon dioxide gas).

The diode laser marking machine is mainly for metal materials, such as: case mobile phone case stainless steel and the like, for a small number of non-metals can also be processed, after a period of use need to replace accessories (generally can be used for several years).

The fiber laser marking machine can hit metal and non-metal materials, simply put, it combines the functions of carbon dioxide and non-metal, and the speed is more than 3 times that of semiconductors, and 100,000 hours without changing accessories, which is the most advanced laser marking equipment at present.

**Why no one introduces the difference!

CO2 laser marking machine is carbon dioxide laser marking machine (CO2 is carbon dioxide). It is a laser galvanometer marking machine that uses CO2 gas as the working medium. Laser galvanometer marking machine with CO2 gas as the working medium.

The CO2 laser uses CO2 gas as the medium, and the CO2 and other auxiliary gases are charged into the discharge tube and the high voltage is added to the electrode, and the glow discharge is generated in the discharge tube, so that the gas releases the wavelength as a laser, and the laser energy is amplified, and after being scanned by the galvanometer and focused by the F-Theta mirror, the image, text, number, and line can be marked on the workpiece according to the user's requirements.

The wavelength is easy to absorb by most non-metallic materials; High photoelectric conversion efficiency; The laser output mode is mainly the fundamental mode, and the beam is stable and stable; Non-contact processing, no mechanical wear and deformation; No consumables are required, and the processing cost is low; The processing efficiency is high, and the processing speed is calculated in milliseconds; Flexible control, compatible with automated production lines; The development speed is fast, and the logo can be changed as you like, without the need for molding.

Attached: Technical parameters of new light source CO2 non-metallic high-speed laser marking machine (XGY-C30W).

Product model: XGY-CO2 30W XGY-CO2 55W XGY-CO2 100W XGY-CO2 200W

Laser wavelength: 1064nm

Output power: 30W 55W 100W 200W

Power stability: (8h) 1% rms

Beam quality: m2 5 (@25a).

Pulse repetition rate: 20kHz

Focus lens: Standard (F160).

Marking range: 70 70mm, 100 100mm (standard), 150 150mm (optional).

Marking speed: 250 characters in seconds (Roman font, 1mm in height).

Mark the minimum character:

Minimum line width: 50 m

Power demand: 220V 22V 50Hz 30A

Power consumption: <

Cooling method: air cooled or water cooled.

Host system size: 1290 mm 410 mm 1200mm

Control system size: 630 mm 630 mm 820mm

Cooling system size: 560 mm 430 mm 770mm

Host system weight: 40kg

Control system weight: 50kg

Cooling system weight: 30kg

CO2 laser marking machine is also commonly known as gas laser marking machine or carbon dioxide laser marking machine, CO2 laser is a gas laser with a wavelength of infrared light band, using CO2 gas into the discharge tube as a medium to produce laser, when the high voltage is added to the electrode, the glow discharge in the discharge tube can make the gas molecules release the laser, and the laser energy is amplified to form a laser beam for material processing. The galvanometer is controlled by the computer to change the laser beam path to achieve automatic marking.