The Principle of UV Laser Cutting Machine

The laser cutting mechanism is based on photochemical ablation. In this case, the laser photon directly destroys the chemical bond of the target material. This is equivalent to a cold working, so the heat affected zone is small. In addition, the whole process is very clean, there is no recast casting materials, which rarely need to re-processing more easy. The high energy of ultraviolet laser photons means that they can drive the occurrence of photochemical ablation. The UV laser removes the material by photochemical ablation. However, another way to achieve complete photochemical ablation is to use a picosecond order or a shorter pulse. These ultrashort pulses have very high instantaneous peak power, and their high energy density allows them to excite electrons in the material and multiply the atomic bonds directly by multiphoton absorption. 
Therefore, the short pulse of the picosecond laser can be used in some fine processing industries such as brittle materials sapphire, high precision cutting flexible circuit board cutting occupies an important position.

Why Is The Pico Laser Cutting Machine More Expensive Than The Nanosecond Laser Machine?

The same type of laser type picosecond laser cutting machine price is higher than nanosecond laser cutting machine price, what is the magic of picosecond laser cutting machine?
Picosecond laser cutting machines have a number of advantages in a wide range of industrial micromachining applications. In particular, it has almost no heat affected zone, the material range is extremely wide, even the visible and near infrared light area transparent material. In particular, now a new generation of industrial picosecond lasers can achieve the advantages of this technology. Many nanosecond lasers can not meet the cutting requirements where the picosecond laser has been used. 
Ordinary nanosecond laser cutting mainly depends on the pulse width in nanosecond range of nanosecond lasers emitted by nanosecond lasers, through the photothermal effect to remove the material.
In this case, the focused laser beam has a very high energy, which rapidly heats the target material and eventually vaporizes it to complete the cutting. Nanosecond laser thermal cutting can quickly remove a relatively large number of target materials and nanosecond laser technology has a sound technical foundation, highly reliable source, operating costs are also very attractive. However, there are still some restrictions on demanding cutting tasks.

Main Application Scope of UV Laser Cutting Machine

UV laser cutting machine is a direct destruction of the molecular structure of the material to cut the line of equipment, compared with cutting method that fiber laser radiation material surface produce high temperature evaporation, it has a small heat effect, the material heat deformation, carbonation, smooth cutting edge and so on. It is widely used in the PCB circuit board factory sub-board cutting, such as SMT sub-board, FPC cutting.
1.circuit board: such as flexible circuit board FPC cutting line, soft and hard combination board RF, HDI board blind hole or transparent hole;
2.functional film: such as cover film to play a protect role on the line;
3.electronic accessories: such as electronic components in the tin alloy metal sheet cutting, marking, drilling, Gold Finger cutting and other electronic products with higher requirements;

4.Other sheet material: Laser processing, the energy has three ways, absorption, reflection, and conversion. The absorption of good material cutting effect will be better, So some common materials such as sapphire, paper, wood crafts, plastics, alloys, etc. can be used to cut by ultraviolet laser cutting machine.

Technical Requirements for CO2 Laser Cutting Technology in Mobile Film Industry

With the advent of the mobile Internet era, the popularity and explosive growth of smart phones, making consumers have more and more demanding on the quality of smart phones, the relevant parts processing is more and more sophisticated. As a frequent use of mobile phones on the film, the cutting accuracy put forward new requirements on the processing technology. 
Mobile phone film cutting precision technical requirements make manufacturers to have used laser technology for cutting. At present, on the market the best cost-effective laser cutting technology is CO2 laser cutting technology. The use of advanced CO2 lasers, excellent optical mode and optical design form a more perfect spot to reduce the heat affected area, can cut out high-quality mobile phone film products, such as PET protective film, display panel. CO2 laser cutting technology has unique advantages, it is more suitable for thin film precision cutting than UV laser cutting technology, but also better meet the IT industry precision machining needs.

CO2 Laser Cutting Technology Is Used Widely

Zhengye Technology CO2 laser technology not only can be applied to the mobile phone film industry, but also can be used in communication, consumer electronics, computing, connecting , cloud server and other industries, be responsible for laser precision cutting for PC film, PET film, PP film, Kevlar and leather and other non-metallic materials. Applicable to screen protection film, acrylic board, OCA optical glue, PET display panel, touch screen, FPC, PCB, electronic paper, polarizer, product Logo, digital products and other areas of laser precision cutting.

In addition, according to customer requirements, Zhengye Technology can provide technical customization, provide technical solutions to meet the needs of customers of various precision machining.

Precision Fiber Laser Cutting Machine For Sale

Precision fiber laser cutting machine is mainly applied to stainless steel, aluminum alloy, titanium alloy, liquid metal and other metal materials, cutting slits is narrow, edge smooth and no burr, heat effect is small, cutting precision is high, also applies to sapphire and aluminum nitride, zirconia and other ceramic cutting, drilling and scribing processing; Using imported fiber laser, long life, high stability.
Cutting cutting width is small, the minimum up to 40um-60um, equipment has high precision, use imported linear motor and rails, processing products has precision ± 0.03mm; Cutting speed is high, acceleration up to 1g or more, drilling small holes need high speed.

Application of Precision Laser Processing

The laser industry is both a new industry, with the development of mobile Internet and smart phones, large data and new energy applications, the laser industry ushered in a new round of explosive growth. IT industry and auto parts processing industry-oriented industries have emerged a large number of precision machining professional, laser equipment products put forward to higher technical requirements.
High speed CO2 laser cutting machine
Mainly for PET, acrylic, aramid, leather, paper, wood, rubber, plastic and other non-metallic materials for cutting, smooth edges, small heat effects, high cutting speed, long life, high stability; Using the German CNC system, graphics data processing better; Exclusive optical path optimization technology - polarization technology greatly improved the processing accuracy, positioning accuracy and repeat positioning accuracy can achieve industry's top, can carry out high precision processing.

Analysis of Influence of Material on Laser Cutting Machine

When the laser cutting machine work, metal absorption of light has a series of factors, such as laser wavelength, temperature, surface conditions.
First of all, the impact on the nature of the material
In the visible light and its adjacent areas, the reflectivity of the different metallic materials exhibits a complex change. However, in the infrared range of laser wavelength> 2um, the reflectivity of the metal is sorted: silver> steel> aluminum> nickel> carbon steel, that is, the better the conductivity of the material, the higher the reflectance of infrared. In this infrared band, photon energy is low, only coupling with the metal in the free electron.

The effect of laser wavelength 

In general, the longer the laser wavelength, the higher the reflectance, the lower the absorption ratio.   

The effect of laser temperature   

The resistivity of the metal increases with temperature increasing, at 20 ° C, the resistivity of the metallic material and the resistance temperature coefficient can calculate the absorption ratio at different temperatures, the absorption ratio increases with increasing temperature.

How to Extend The Aging of Metal Laser Cutting Machine?

First of all, for the the choice and maintenance of laser, the laser is the head of the metal laser cutting machine, its quality directly affects the metal laser cutting machine performance, if the quality of the laser itself is a problem, it will speed up the rapid aging of metal laser cutting machine. So, choose the quality of the laser is the focus. In addition, the metal laser cutting machine maintenance work is also very important, can try to keep the laser function in a standard, delay the aging of metal laser machine.
Then, the use environment of metal laser cutting machine, metal laser cutting machine has a certain requirement on the studio temperature, excessive temperature can cause crashes, slow response, low temperature can cause damage to the trachea and cables, likely to cause breakage and leakage. So control the metal laser cutting machine working environment temperature is one of the key factors to delay aging.
In addition, the metal laser cutting machine will produce a lot of metal dust in the operation, the dust attached to the equipment, the equipment will increase the wear between the various parts of the intensity, while the attached dust will also affect the focus of the lens transmittance, indirectly affect the cutting accuracy of metal laser cutting machine.

How to Buy Cost-effective Laser Marking Machine?

We all know that the price of laser marking machine is high, relative to the general business, it is a bit risky. Before choosing a suitable laser marking machine, the user must be aware of three questions.
the laser marking machine?
Is your product suitable for laser marking machine?
What is the price that you can accept?
In order to understand these issues, the user will spend a lot of time asking people around him, if you can not find the answer from the friends around you, you will find information online, many problems can be found the answer on the Internet. 
When users want to further understand the true strength of the manufacturers, the user can go to the factory to inspect, and bring the appropriate sample to proofing, Zhengye Technology is free to test the machine.
When the user understand the real choice, but not necessarily able to achieve their own imagination. Therefore, in the communication with the laser marking machine manufacturers, we need to mark the product material, marking the character size, marking the format and other issues with the engineers in detail communication, so as to choose the most suitable laser marking machine.

How to Choose Three - dimensional Fiber Laser Cutting Machine?

With the continuous processing of metal precision, three-dimensional fiber laser cutting machine is also more and more wide. Now, has been widely used in sheet metal processing, aviation, electronics, electrical appliances, cars, fine accessories, technical gifts, kitchen utensils and other industries. The following teach you how to choose three-dimensional fiber laser cutting machine.
1.determine the use of equipment: Processing metal materials should choose three-dimensional fiber laser cutting machine laser power in the 150-500W or so, if cut thick metal information, it is necessary to select 1000W-2000W laser fiber laser cutting machine, the detailed power wattage based on the thickness of processing materials to select.
2.the software system: the software system is provided by the manufacturer of laser cutting machine, is the industry of laser three-dimensional fiber laser cutting machine selected self-developed control software, the system is powerful. 
3.optical devices: for optical device wavelength, you can choose a professional laser cutting head.
4.supplies accessories: laser is a three-dimensional fiber laser cutting machine's primary accessories, Zhengye laser not only can ensure the smooth operation of equipment, but also can ensure the quality of processing.
5.after-sales service: Select Zhengye Technology, ensure that this laser pre-sale service, professional and technical engineers on-site professional training, more assurance.

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