What Is A Laser Marking Machine

laser marking machine
Fly laser Laser marking machines use laser beams to permanently mark the surface of various substances. The effect of marking is to expose the deep material through the evaporation of the surface material, so as to engrave exquisite patterns, trademarks and characters. Laser marking machines are mainly divided into CO2 laser marking machines, semiconductor laser marking machines, and fiber laser marking machines. And YAG laser marking machine, laser marking machine is mainly used in some occasions requiring finer and higher precision. Used in electronic components, integrated circuits (IC), electrical appliances, mobile communications, hardware products, tool accessories, precision instruments, glasses and clocks, jewelry, auto parts, plastic buttons, building materials, PVC pipes.
Fundamental:
Laser marking is the use of laser beams to permanently mark the surface of various substances. The effect of marking is to expose the deep material through the evaporation of the surface material, or to "engrave" traces through the chemical and physical changes of the surface material caused by light energy, or to burn off part of the material through light energy, showing the required etching. pattern, text
Composition:
Laser power supply
The laser power supply of the fiber laser marking machine is a device that provides power for the fiber laser, and its input voltage is AC220V alternating current. Installed in the control box of the marking machine.
fiber-optic laser
The fiber laser marking machine adopts imported pulsed fiber laser, which has a good output laser mode and a long service life, and is designed to be installed in the marking machine casing.
Galvo Scanning System
Galvo scanning system is composed of optical scanner and servo control. The whole system is designed and manufactured using new technologies, new materials, new processes and new working principles.
The optical scanner adopts a servo motor with a moving magnetic deflection working mode. It has the advantages of large scanning angle, large peak torque, large load inertia, small electromechanical time constant, fast working speed, stability and reliability. Precision bearing anti-backlash mechanism provides ultra-bottom axial and radial runout error; "electronic torsion bar" replaces traditional elastic material torsion bar, which greatly improves service life and long-term reliability; zero power at any position maintains the working principle and reduces both The power consumption is reduced, the heating effect of the device is reduced, and the constant temperature device is omitted; the advanced high-stability precision position detection sensing technology provides high linearity, high resolution, high repeatability, and low drift performance.
The optical scanner is divided into an X-direction scanning system and a Y-direction scanning system, and a laser mirror is fixed on each servo motor shaft. Each servo motor is controlled by a digital signal from the computer to control its scanning track.
focus system
The function of the focusing system is to focus the parallel laser beams to a point. The f-theta lens is mainly used. The focal length of different f-theta lenses is different, and the marking effect and range are also different. The fiber laser marking machine adopts imported high-performance focusing system. The standard configuration of the lens focal length is f=160mm, which can effectively scan Range Φ110mm. Users can choose the type of lens according to their needs.
Optional F-theta lenses are:
f=100mm, effective focusing range Φ65mm.
f=160mm, effective focusing range Φ110mm.
Computer control system
The computer control system is the center of the control and command of the entire laser marking machine, and it is also the carrier of software installation. Through the coordinated control of the acousto-optic modulation system and the galvanometer scanning system, the workpiece marking processing is completed.
The computer control system of the fiber laser marking machine mainly includes chassis, motherboard, CPU, hard disk, memory stick, D/A card, floppy drive, monitor, keyboard, mouse, etc.
Features:
There are two accepted principles:
"Thermal processing" A laser beam with a higher energy density (it is a concentrated energy flow) is irradiated on the surface of the material to be processed, the material surface absorbs the laser energy, and a thermal excitation process occurs in the irradiated area, so that the material surface (or coating) temperature rises, resulting in metamorphosis, melting, ablation, evaporation and other phenomena.
"Cold working" photons with very high loading energy (ultraviolet) can break chemical bonds in materials (especially organic materials) or in the surrounding medium, so that the material is destroyed by non-thermal processes. This cold working is of special significance in laser marking processing, because it is not thermal ablation, but cold peeling that breaks chemical bonds without the side effect of "thermal damage", so it does not affect the inner layer and adjacent areas of the machined surface. Produce heating or thermal deformation and other effects. For example, excimer lasers are used in the electronics industry to deposit thin films of chemicals on substrate materials and to create narrow trenches in semiconductor substrates.

What are the advantages of fiber laser marking machines?

Fiber laser marking machines have significant advantages, mainly in the following aspects:

1. Power saving and energy saving: Fiber laser marking machines use fiber lasers, which have higher electro-optical conversion efficiency and can greatly reduce energy consumption compared to traditional solid-state laser marking machines.

2. High processing efficiency: The fiber laser marking machine has high laser output power and faster processing speed, which greatly improves production efficiency.

3. High precision: The fiber laser marking machine adopts an advanced optical system and has a smaller beam focusing radius, which can achieve more precise marking results.

4. Good stability: The laser of the fiber laser marking machine has a long life, stable operation, and is maintenance-free, which greatly reduces operating costs.

5. Strong material applicability: Fiber laser marking machines can be applied to various materials, including metals, non-metals, composite materials, etc., expanding their application scope.

6. Environmental protection and safety: The fiber laser marking machine adopts a non-contact processing method, which does not produce mechanical stress and avoids problems such as workpiece deformation. At the same time, no pollutants are produced during laser processing, which meets environmental protection requirements.

7. Strong customizability: The fiber laser marking machine can be customized according to customer needs, including adjustable parameters such as laser power, scanning speed, and marking depth, to meet the processing needs of different customers.

8. Easy to operate and maintain: The operating system of the fiber laser marking machine is simple and easy to understand, and the daily maintenance workload is small, which reduces the use threshold and maintenance costs.

In short, fiber laser marking machines have the advantages of high efficiency, accuracy, energy saving, and environmental protection, and have broad application prospects in industrial processing, product marking and other fields.

What are the disadvantages of fiber laser marking machines?

Although fiber laser marking machines have many advantages, they also have some disadvantages, mainly including the following aspects:

1. High cost: The cost of fiber laser marking machines is relatively high, especially for small businesses or individual users, the cost pressure of purchasing and maintaining fiber laser marking machines is greater.

2. High technical requirements: Fiber laser marking machine technology is relatively complex and requires high skills and experience of operators. Operators need to have certain professional knowledge and skills to correctly use and maintain fiber laser marking machines.

3. High requirements on materials: Fiber laser marking machines have different processing effects on different materials, and some materials may not be suitable for processing by fiber laser marking machines. At the same time, for some special materials, the fiber laser marking machine may need to be combined with other process methods to achieve the ideal processing effect.

4. High environmental requirements: Fiber laser marking machines need to operate in a dry, dust-free, and vibration-free environment, and have high environmental requirements. If the working environment is not good, it may affect the performance and service life of the fiber laser marking machine.

5. Difficulty in repair and maintenance: Due to the complex internal structure of the fiber laser marking machine, once a fault occurs, repair and maintenance may be difficult. Professionals are required for repair and maintenance, which increases the cost and time of repair and maintenance.

To sum up, the disadvantages of fiber laser marking machines are mainly concentrated in cost, technical requirements, material requirements, environmental requirements and maintenance. When choosing to use a fiber laser marking machine, you need to comprehensively consider these factors and weigh their advantages and disadvantages based on the actual situation.
Comparison of Different Labeling Methods
Compared with inkjet marking, the advantages of laser marking and engraving are: a wide range of applications, a variety of substances (metal, glass, ceramics, plastics, leather, etc.) can be marked with permanent high-quality marks. There is no force on the surface of the workpiece, no mechanical deformation, and no corrosion on the surface of the material.
Applications
Can engrave a variety of non-metallic materials. Used in clothing accessories, pharmaceutical packaging, wine packaging, architectural ceramics, beverage packaging, fabric cutting, rubber products, shell nameplates, craft gifts, electronic components, leather and other industries.
1. It can engrave metal and various non-metal materials. It is more suitable for the processing of some products that require fine and high precision.
2. Used in electronic components, integrated circuits (IC), electrical appliances, mobile communications, hardware products, tool accessories, precision instruments, glasses and clocks, jewelry, auto parts, plastic buttons, building materials, PVC pipes, medical equipment and other industries .
3. Applicable materials include: common metals and alloys (all metals such as iron, copper, aluminum, magnesium, zinc, etc.), rare metals and alloys (gold, silver, titanium), metal oxides (all kinds of metal oxides are acceptable), Special surface treatment (phosphating, aluminum anodizing, electroplating surface), ABS material (electrical appliance shell, daily necessities), ink (light-transmitting keys, printed products), epoxy resin (electronic components encapsulation, insulating layer).

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