dotslaser

[dotslaser]

What is the marking principle of fiber laser marking machine

The so-called fiber laser marking machine means that this marking machine uses a fiber laser generator. The fiber laser generator has the characteristics of small size (no water cooling device, using air cooling), good beam quality (basic mode), and maintenance-free. Now the fiber laser equipment can not only reduce the maintenance cost, but also greatly extend the service life, the marking effect is more fine and clear than the original. The application field of fiber laser marking machine is very wide,it can be applied to integrated circuit chips, computer accessories, industrial bearings, watches, electronics and communication products, aerospace devices, various auto parts, home appliances, hardware tools, molds, wires and cables, Marking of graphics and text in many fields such as food packaging, jewelry, tobacco and military affairs, etc.

Fiber laser equipment uses a high energy density laser beam to act on the surface of the processed product. Under the action of high energy, the marked surface quickly vaporizes or chemical reactions occur, thereby leaving traces on the product surface. The processed surface is not only smooth and natural, but also does not damage the material near the marked surface. Laser processing is different from traditional processing methods. Laser processing requires that the surface of the processed material itself can absorb the laser beam of this wavelength before it can be processed, but traditional processing does not have this requirement. However, laser processing does not require consumables and will not cause deformation of the product. The computer is used to control and operate flexibly during processing.

It is these excellent performances that make the application range of fiber laser equipment increasingly widespread, and have begun to replace traditional processing methods in many fields. Continuously improving and upgrading technologies are constantly striking the market occupied by traditional industries. In terms of price, the price of fiber laser marking machine is much more expensive than traditional equipment, but the excellent performance and lower maintenance cost have won the favor of many industries. Especially for marking materials with high hardness, high melting point and brittleness, it is more advantageous.

DOTSLASER is a highly integrated enterprise which specializes in laser products, laser cutting machine, laser engraving machine, laser welding machine, etc. Manufacturer and processing international sales and domestic sales. As a modernized enterprise with high technology and mature sales channel, we have solid financial base and great capability for production, research and development.

Our products include: laser cutting machine, laser marking machine, all kinds of laser parts, laser cleaning machine, laser welding machine and so on.

We have over 10 years of laser experience. Personalized products and services to provide customers with a significant advantage. Due to the high quality of our products and reliable performance, they are widely used in metal processing, electronics, hardware, model-making, clothing, advertising, printing and packaging, as well as more other industries. Visit our website for more details https://www.dotslaser.com

[dotslaser]

Choose CO2 laser marking machine or fiber laser marking machine?

Regarding co2 laser marking machine and fiber laser marking machine, which is better? First of all, this should be determined according to the materials and customer needs. Some materials are suitable for CO2 carbon dioxide laser marking machines, some materials are suitable for fiber laser marking machines, and some are general-purpose laser marking machines. Although the application range of fiber laser marking machine is wide, the materials used for co2 laser marking machine are not necessarily suitable for fiber laser marking machine, and each has its advantages and disadvantages.

What are the differences between CO2 laser marking machine and fiber laser marking machine?

The carbon dioxide laser marking machine is mainly for marking non-metallic materials, such as plastic, glass, etc., but after a period of use, it needs to be filled (carbon dioxide). The fiber laser marking machine can mark metal and non-metal materials. Simply put, it combines the functions of a carbon dioxide laser marking machine and a semiconductor laser marking machine, and the speed is more than 3 times that of a semiconductor, and there is no need to change parts for 100,000 hours. , High-power, high-brightness, high-precision, is currently more advanced laser marking equipment.

Performance characteristics of CO2 laser marking machine:

1. The marking accuracy is high, the speed is fast, and the engraving depth can be controlled at will;

2. The laser power is large and can be used for engraving and cutting a variety of non-metal products;

3. No consumables, low processing cost, laser operating life up to 20,000 to 30,000 hours;

4. Clear marking, not easy to wear, fast engraving and cutting efficiency, environmental protection and energy saving;

5. Use the 10.64nm laser beam to expand, focus, and finally control the deflection of the galvanometer;

6. Act on the work surface according to the predetermined trajectory to vaporize the work surface to achieve the marking effect;

7. Good beam pattern, stable system performance, low maintenance, suitable for industrial processing sites with large batches, multiple varieties, high speed and high precision continuous production;

8. The most advanced optical path optimization design and unique graphics path optimization technology, coupled with the unique super pulse function of the laser, make the cutting speed faster.

Industry application and applicable materials of CO2 laser marking machine:

Suitable for paper, leather, cloth, plexiglass, epoxy resin, woolen products, plastics, ceramics, crystal, jade, bamboo and wood products. It is widely used in all kinds of consumer goods, food packaging, beverage packaging, pharmaceutical packaging, architectural ceramics, clothing accessories, leather, textile cutting, craft gifts, rubber products, shell brands, denim, furniture and other industries.

Performance of fiber laser marking machine:

1. The marking software is very powerful, compatible with application software such as Coreldraw, AutoCAD, Photoshop, etc.; supports PLT, PCX, DXF, BMP, etc., and can use SHX and TTF fonts; supports automatic encoding, printing serial numbers, batch numbers, dates, bar codes , QR code, automatic number skipping, etc.;

2. Adopt an integrated structure, equipped with an automatic focusing system, and the operation process is humanized;

3. Use the original imported isolator to protect the fiber laser window, increase the stability and laser life;

4. No maintenance required, long service life, small size, suitable for working in harsh environments;

5. The processing speed is fast, 2-3 times of the traditional marking machine;

6. The electro-optical conversion rate is high, the power consumption of the whole machine is less than 500W, which is 1/10 of the lamp pumped solid laser marking machine, which greatly saves energy consumption;

7. The beam quality is much better than the traditional solid laser marking machine. It is the basic mode, TEM00, and the output focused spot diameter is less than 20um. The divergence angle is 1/4 of the semiconductor pump laser. Especially suitable for fine and close marking.

Applicable materials used in fiber laser marking machine industry:

Metal and various non-metal materials, high-hardness alloys, oxides, electroplating, coating, ABS, epoxy resin, ink, engineering plastics, etc. Widely used in plastic translucent buttons, ic chips, digital product components, compact machinery, jewelry, sanitary ware, measuring tools, clocks and glasses, electrical appliances, electronic components, hardware accessories, hardware tools, mobile phone communication components, automobile and motorcycle accessories, Plastic products, medical equipment, building materials, pipes and other industries.

DOTSLASER has 10 years experience in industrial laser equipment, we are a professional laser equipment production base, all equipment are researched,developed,assembled by ourselves.Our products mainly include fiber laser cutting machine, fiber laser marking machine, fiber laser welding machine, UV laser marking machine, CO2 laser marking machine, CO2 laser cutting machine, etc.

[dotslaser]

Choose CO2 laser marking machine or fiber laser marking machine?

Regarding co2 laser marking machine and fiber laser marking machine, which is better? First of all, this should be determined according to the materials and customer needs. Some materials are suitable for CO2 carbon dioxide laser marking machines, some materials are suitable for fiber laser marking machines, and some are general-purpose laser marking machines. Although the application range of fiber laser marking machine is wide, the materials used for co2 laser marking machine are not necessarily suitable for fiber laser marking machine, and each has its advantages and disadvantages.

What are the differences between CO2 laser marking machine and fiber laser marking machine?

The carbon dioxide laser marking machine is mainly for marking non-metallic materials, such as plastic, glass, etc., but after a period of use, it needs to be filled (carbon dioxide). The fiber laser marking machine can mark metal and non-metal materials. Simply put, it combines the functions of a carbon dioxide laser marking machine and a semiconductor laser marking machine, and the speed is more than 3 times that of a semiconductor, and there is no need to change parts for 100,000 hours. , High-power, high-brightness, high-precision, is currently more advanced laser marking equipment.

Performance characteristics of CO2 laser marking machine:

 1. The marking accuracy is high, the speed is fast, and the engraving depth can be controlled at will;

2. The laser power is large and can be used for engraving and cutting a variety of non-metal products;

3. No consumables, low processing cost, laser operating life up to 20,000 to 30,000 hours;

 4. Clear marking, not easy to wear, fast engraving and cutting efficiency, environmental protection and energy saving;

 5. Use the 10.64nm laser beam to expand, focus, and finally control the deflection of the galvanometer;

6. Act on the work surface according to the predetermined trajectory to vaporize the work surface to achieve the marking effect;

7. Good beam pattern, stable system performance, low maintenance, suitable for industrial processing sites with large batches, multiple varieties, high speed and high precision continuous production;

8. The most advanced optical path optimization design and unique graphics path optimization technology, coupled with the unique super pulse function of the laser, make the cutting speed faster.

Industry application and applicable materials of CO2 laser marking machine:

Suitable for paper, leather, cloth, plexiglass, epoxy resin, woolen products, plastics, ceramics, crystal, jade, bamboo and wood products. It is widely used in all kinds of consumer goods, food packaging, beverage packaging, pharmaceutical packaging, architectural ceramics, clothing accessories, leather, textile cutting, craft gifts, rubber products, shell brands, denim, furniture and other industries.

Performance of fiber laser marking machine:

 1. The marking software is very powerful, compatible with application software such as Coreldraw, AutoCAD, Photoshop, etc.; supports PLT, PCX, DXF, BMP, etc., and can use SHX and TTF fonts; supports automatic encoding, printing serial numbers, batch numbers, dates, bar codes , QR code, automatic number skipping, etc.;

2. Adopt an integrated structure, equipped with an automatic focusing system, and the operation process is humanized;

3. Use the original imported isolator to protect the fiber laser window, increase the stability and laser life;

4. No maintenance required, long service life, small size, suitable for working in harsh environments;

 5. The processing speed is fast, 2-3 times of the traditional marking machine;

 6. The electro-optical conversion rate is high, the power consumption of the whole machine is less than 500W, which is 1/10 of the lamp pumped solid laser marking machine, which greatly saves energy consumption;

7. The beam quality is much better than the traditional solid laser marking machine. It is the basic mode, TEM00, and the output focused spot diameter is less than 20um. The divergence angle is 1/4 of the semiconductor pump laser. Especially suitable for fine and close marking.

Applicable materials used in fiber laser marking machine industry:

Metal and various non-metal materials, high-hardness alloys, oxides, electroplating, coating, ABS, epoxy resin, ink, engineering plastics, etc. Widely used in plastic translucent buttons, ic chips, digital product components, compact machinery, jewelry, sanitary ware, measuring tools, clocks and glasses, electrical appliances, electronic components, hardware accessories, hardware tools, mobile phone communication components, automobile and motorcycle accessories, Plastic products, medical equipment, building materials, pipes and other industries.

For more details about Fiber Laser Marking Machine Manufacturer China, CO2 Laser Marking Machine Manufacturer Chinabrowse our website for more detailshttps://www.dotslaser.com.

[dotslaser]

DOTSLASER-UV Lasers And Their Applications in Laser Processing

First, UV laser characteristics description

The ultraviolet laser wavelength is short, energy concentration, high resolution, especially has the characteristic of "cold processing", can directly destroy the connection material chemical bond, without producing to the peripheral heating, therefore becomes the ideal tool of processing fragile material, and can carry on the perforation, cutting, ablation to many kinds of materials, has the wide application in the field of micromachining.

1. Gas UV laser

Gas UV lasers are excimer lasers, argon ion lasers, nitrogen molecule lasers, fluorine molecule lasers, helium cadmium lasers and so on. The gas ultraviolet laser used for laser processing mainly has the excimer laser.

Excimer is a kind of excimer in the excited state composite into molecules, in the base state dissociation into atomic unstable connective matter. In excimer laser systems, the leap occurs from the bound excited to the repelled fundamental state, and is therefore a free leap of bound origin. Excimer laser is a kind of pulsed laser, the working medium is generally a certain proportion of mixed inert gas and strong electron halogen element gas, when the base state of the inert gas atom is excited, the extra-nuclear electron is excited to a higher orbit and thus change the electronic shell layer all filled state, so that it and other atoms to form an excimer, when the excited state of the molecule leaps back to the base state, immediately decomposed, reverted to the original properties! The laser emits high energy ultraviolet laser, which is amplified by the resonant cavity and releases photons at the same time.

2. Solid-state ultraviolet laser

The general produce ultraviolet excitation spectral line method has two kinds: one is directly using infrared all solid-state laser triplex frequency or quadruple frequency obtain 355nm or 266nm ultraviolet excitation spectral line, another kind of method is first use frequency doubling technology to get the second harmonic, then use and frequency technology to get ultraviolet excitation spectral line. The former method effective nonlinear coefficient is small, the conversion efficiency is low, the latter method because of the use of the second nonlinear polarization rate, the conversion efficiency is going to be higher than the former kind many. The solid ultraviolet laser relative to the excimer laser has the advantages of compact volume, easy maintenance, easy operation and so on.

3. Application advantages

There are three advantages of UV lasers in laser processing: first, the shorter wavelength of UV lasers can process very small parts; Two is the ultraviolet laser for laser processing directly destroy material chemical bond, is "cold" processing, has a small heat affected area; Three is most materials can effectively absorb ultraviolet light, can process many infrared and visible light laser processing can't material, and the ultraviolet laser especially solid-state UV lasers are becoming increasingly compact, high average power, easy to maintain, easy to operate, low cost and high productivity. Therefore, it has been widely used in laser processing fields such as bioengineering, material preparation, all-optical optical device production, integrated circuit board and semiconductor industry.

4. Industry Applications

Application area Legend Brief description

Chip processing

(Bioengineering) Laser excimer fabrication of polymer microfluidic chips for analysis, synthesis and cell culture, DNA sequencing, gene mutation and other applications.

Material Preparation

Nano Si film

The method of using laser ablation technology to make its surface quickly heated and melted evaporate, and then cooled crystallization growth. Advantages: Firstly, the preparation cycle is short; secondly, the UV laser can be absorbed by many materials, such as ceramics, metals, polymers, etc.; Thirdly, it has a very small heat affected zone.

All-optics

Diffraction grating structure The traditional method is to use a diamond cutter to engrave, in the process of engraving tool wear is very serious, the special grade knife material diamond cutter can only engrave a few pieces of grating. Laser ablation is used to produce a grating stripe structure on the surface of the material, the thin film in the scanning area is ablated, the substrate is exposed, and a grating structure is formed on the surface of the material. Easy and fast operation

Integrated circuit board,

PI film drilling 100µm holes in the polymer and copper laminated circuit board, and cutting.

Semiconductor industry - Mainly used for crystal cutting, which is not easy to break and does not damage the surrounding devices. For more details about Fiber Laser Marking Machine Manufacturer China, CO2 Laser Marking Machine Manufacturer Chinabrowse our website for more detailshttps://www.dotslaser.com.

[dotslaser]

Laser welding as a high-energy beam precision welding technology, with its low thermal input, small welding deformation, welding speed, high degree of automation, a series of advantages, more and more widely used in the industrial field.

However, in Dotslaser welding, if the arc section and the arc collection section do not carry out special process treatment, then due to the machine tool or robot and other moving body of the acceleration process, at the beginning of the weld is prone to appear "match head" appearance, the end of the weld is prone to arc pit depression, the overall uniformity of the weld appearance has a greater impact, and the arc at the end of the arc will reduce the strength of the weld, easy to produce arc cracks. And the greater the laser power density, the more obvious this phenomenon.

Therefore, in the actual production process, the weld arcing and arcing process needs to be special treatment. If the weld position and conditions allow, can be avoided by adding an introduction arc plate, but in the actual mass production, this scheme is not applicable, and part of the weld trajectory is closed graphics, weld start and end segments are in the weld, so it is necessary to optimize the weld process parameters to adjust the shape of the weld arc closing segment.

The weld shape can be adjusted by the laser power control and PWM control of the starting arc segment, and during the arcing phase, the power can gradually change from low to high as the moving mechanism accelerates from stationary to normal welding speed, and the power can be changed gradually from low to high, low power in the low-speed stage and high power in the high-speed stage, which can be avoided. At the arc "match head" shape, in the arcing stage, the laser power is gradually reduced, can reduce the energy density of the welding line, the weld melt width gradually narrows, the welding process deep melting hole gradually becomes shallow, thus improving the arc pit shape at the weld arc.

Therefore, by controlling the laser power slowly rising and falling, the weld can be smoothed too smoothly at the start and end of the arc, significantly reducing the height of the weld starting arc point and the size of the arc pit at the end of the arc and depression. On this basis, in order to further control the heat input volume of the starting and ending segments, the dubing ratio or modulation frequency can be optimized again with the change of welding speed.

DOTSLASER uses continuous optical lasers for continuous welding and modulation mode welding, and laser power can be adjusted in real time. With Jept's continuous laser monitoring software, not only can the laser's working status be monitored in real time, but also the line energy density can be precisely controlled, thus avoiding the "matchhead" shape at the arc. Fiber Laser Marking Machine Manufacturer China, CO2 Laser Marking Machine Manufacturer China