1、 Laser marking machine is a new marking process

In recent years, with the improvement of the sustainability and practicality of lasers, coupled with the rapid development of computer technology and the improvement of optical devices, the development of laser marking technology has been promoted.

Laser marking machine is a new processing technology developed together with laser welding, laser heat treatment, laser cutting, laser drilling and other applications. By using a high-energy density laser beam to act on the target, the target surface undergoes physical or chemical changes, thereby obtaining a visible pattern marking method. That is, the high-energy laser beam is focused on the material surface, causing the material to quickly vaporize and form pits. As the laser beam moves on the material surface in a regular manner while controlling the opening and closing of the laser, the laser beam is processed into a specified pattern on the material surface; Laser marking is still a new marking process that is non-contact, pollution-free, and wear-resistant.

The principle of laser marking can be explained as follows: a computer controls a high-energy density focused laser beam to act on the surface of mechanical components, electronic components, instruments, etc. that need to be marked according to a predetermined trajectory, causing the surface material to vaporize instantly or undergo chemical changes to change color, etching text, patterns, etc. with a certain depth or color, thus leaving permanent marks on the surface of the workpiece.

2、 Laser marking non-contact permanent identification

Laser marking is a marking method that uses a high-energy density laser beam to act on a target, causing physical or chemical changes to the surface of the target, thereby obtaining visible patterns. The strong and permanent marking produced by the laser acting on the surface of the workpiece is its prominent feature.

Laser marking machine, also known as laser typewriter, laser printer, laser marking machine, is an important application of laser processing principle. It uses a processed laser beam to irradiate the surface of a material, and the light energy is instantly converted into heat energy, causing the surface material to melt or even vaporize instantly, thus forming a mark.

In recent years, laser marking technology has been increasingly applied in the printing field. Laser marking can be applied to various materials including plastics and rubber, metals, silicon chips, etc. Laser marking machines are simple and easy to operate. As long as you understand basic computer knowledge, you can operate laser marking machines; In the marking and printing industry, laser marking has the following characteristics:

a. Permanent; The mark will not fade due to environmental factors such as touch, acidic and alkaline gases, high temperature, low temperature, etc.

b. Anti counterfeiting capability; The markings carved using laser marking technology are not easy to imitate or change, and have strong anti-counterfeiting properties to a certain extent.

c. Non contact; Laser marking is a non mechanical "light knife" used for processing, which can print marks on any regular or irregular surface, and the workpiece will not generate internal stress after marking, ensuring the original accuracy of the workpiece. It does not corrode the working surface, has no tool wear, is non-toxic, and pollution-free, making it a clean and pollution-free high environmental protection processing technology.

d. Wide applicability; Laser processing can be used to process various metal and non-metal materials (aluminum, copper, iron, wood products, etc.).

e. High carving accuracy; The laser marking machine carves fine patterns on objects, with a minimum line width of 0.04mm. The markings are clear, durable, and aesthetically pleasing. Laser marking can meet the need to print large amounts of data on extremely small plastic parts and has stronger market competitiveness.    

f. Low operating costs; The marking speed is fast and the marking is formed in one go, with low energy consumption, resulting in low operating costs. Although the equipment investment of laser marking machines is larger than traditional marking equipment, the operating cost of using laser marking machines is much lower. Example: ① Marking of plastic sealed triodes: The marking machine operates at a speed of 10 pieces per second. If the equipment is depreciated for 5 years, the marking cost is 0.00048 yuan per piece. If a transfer printing machine is used, its overall operating cost is about 0.002 yuan per unit, or even higher.

g. High processing efficiency; The laser beam under computer control can move at high speed (up to 5-7 meters/second), and can print various texts, symbols, and patterns. The marking process can be completed within seconds, making it easy to use software to design marking patterns, change marking content, and adapt to the requirements of modern production efficiency and fast pace.

h. Fast development speed; Due to the combination of laser technology and computer technology, users can achieve laser printing output by programming on the computer, and can change the printing design at any time, fundamentally replacing the traditional mold making process and providing convenient tools for shortening product upgrade cycles and flexible production.

If equipped with Chuangxin laser Q-switching or MOPA10W, 20W pulse fiber lasers, the laser marking machine has high marking accuracy, fast speed, and stable performance. It can be configured with a conveyor work platform that can work continuously for a long time (or directly installed on the customer's production line) and equipped with encoders and sensors, making the continuous dynamic marking on the production line faster and more accurate. Compared with traditional laser marking machines, it has the advantages of higher photoelectric conversion efficiency, higher stability, and easier operation. Compared with traditional ink jet printers, it has the advantages of clean, environmentally friendly, pollution-free, and low consumption. The marking is more durable and has anti-counterfeiting function. With the continuous expansion of modern laser marking applications, there is an increasing demand for miniaturization, high efficiency, and integration of laser manufacturing equipment systems.

3、 Application of laser marking

Laser marking technology is one of the largest application areas of laser processing. Due to the significant advantages of laser marking, it can print various texts, symbols, and patterns, with character sizes ranging from millimeters to micrometers. This has special significance for anti-counterfeiting of products and has been widely used in various industries, such as electronics, instruments, communication equipment, packaging, beverages, batteries, sanitary ware, electronic components, integrated circuits (ICs), electrical appliances, mobile communications, hardware products, tool accessories, precision instruments, glasses and clocks, jewelry and accessories, automotive parts, machinery manufacturing, plastic buttons, plastic marking, cutting, assembly line clothing, fabrics, tire surfaces, as well as ceramic colored stickers marking and glass surface marking. It is a modern processing method that is high-quality, efficient, pollution-free, and low-cost. Production has opened up vast prospects.