What types of laser marking machines are there?

In this article, I will take you through several common laser marking machines.

Laser marking machines are widely used in our daily life. Laser marking machines are also called laser engraving machines, laser coding machines, laser inkjet printers, laser cutting plotters, etc. Different regions and different industries have different names. Because the materials of the processed products are different, the laser marking machines used are also different. There will be different laser marking machine equipment for different materials in different industries. Choosing a laser marking machine that suits your products is not One thing is difficult, because there are many types of laser marking machines, so you must first understand the characteristics and application fields of various types of laser marking machines, in order to choose the most suitable laser marking machine for you. According to the division of light sources, the common laser marking machines in daily life include ultraviolet laser marking machines, fiber laser marking machines and CO2 laser marking machines. The material vaporizes or undergoes a color change, leaving a long-lasting, clear, indelible mark. With the advancement of technology, according to application requirements and in order to improve production efficiency, desktop laser marking machines, handheld laser marking machines, and portable laser marking machines that are smaller and more portable; online laser marking machines that can be integrated on the production line Marking machine; 3D dynamic laser marking machine that can be applied to curved surface marking; PCB laser marking machine designed for PCB circuit board marking, difficult to supply materials, poor positioning, The CCD visual positioning laser marking machine developed to solve the problem of slow speed has emerged at the historic moment. The laser marking machine equipment is becoming more and more diversified, and the scope of application is becoming wider and wider.

The ultraviolet laser machine is developed with a 355nm ultraviolet laser. This machine adopts the third-order intracavity frequency doubling technology, which relies on laser energy to break the bonds between atoms or molecules, making them gasify and evaporate as small molecules. Compared with infrared lasers, ultraviolet lasers are cold lasers in the true sense, and their thermal effects are very small, which can greatly reduce the mechanical deformation of materials and have small processing heat effects, so they are mainly used for ultra-fine marking and engraving, especially suitable for It is used in food and medical packaging materials marking, micro-hole drilling, high-speed division of glass materials and complex graphics cutting of silicon wafers and other applications. The UV marking machine is the preferred product for customers who have higher requirements for marking. It has the characteristics of high electro-optical conversion rate, stable operation of the whole machine, high marking accuracy, high work efficiency, and modular design for easy installation and maintenance. Mainly used for marking on the surface of packaging bottles for iPhone, cosmetics, medicines, food and other polymer materials; marking and scribing of flexible PCB boards; processing of micro-holes and blind holes on silicon wafers; surface of LCD liquid crystal glass, glassware, Metal surface coating, plastic buttons, electronic components, gifts, communication equipment, building materials, etc.

Fiber laser marking machine is currently a very widely used model. It uses fiber laser to output laser, and then realizes marking function through high-speed scanning galvanometer system. Fiber marking machine has high electro-optic conversion efficiency and is cooled by air cooling. Small size, good output beam quality, high reliability, long life, energy saving and environmental protection, it can engrave metal materials and some non-metal materials. The effect of marking is to expose the deep material through the evaporation of the surface material, or to “carve” traces through the chemical and physical changes of the surface material through light energy, or to burn part of the material through light energy, showing the required etching. Patterns, texts, barcodes and other graphics. It is mainly used in fields with high depth, smoothness and fineness. It is widely used in integrated circuit chips, computer accessories, industrial bearings, clocks and watches, electronic and communication products, aerospace devices, various auto parts, home appliances, hardware tools, Die, wire and cable, food packaging, jewelry, tobacco and military affairs and many other areas of graphic and text marking, as well as mass production line operations, and the marking speed is the traditional first-generation lamp pump marking machine, second-generation semiconductor marking machine 3~12 times.

Carbon dioxide laser marking machine, commonly known as CO2 marking machine, the key core component is the type of laser, which is divided into glass radio frequency tube and metal radio frequency tube. From the perspective of market application, the metal radio frequency tube is more cost-effective, and the service life can reach more than 100,000 hours. , the laser wavelength is 10.64μm, which belongs to the mid-infrared frequency band, has relatively large power and relatively high electro-optic conversion rate, and uses CO2 gas as the working substance. The CO2 laser marking machine is a high-performance laser equipment that passes the laser beam through beam expansion, galvanometer, focusing, and finally achieves marking by controlling the deflection of the galvanometer. The marking speed is also fast, and it is suitable for marking most non-metallic materials. The effect of marking is to expose the deep material through the evaporation of the surface material, so as to engrave exquisite patterns, trademarks, dates, LOGO or text. At present, CO2 laser marking machines are mainly used in some occasions that require finer and higher precision. Used in food, medicine, wine, electronic components, integrated circuits (IC), electrical appliances, mobile communications, building materials, PVC pipes and other industries.