The effects of the laser marking machine are as follows:

　　The laser light energy evaporates the surface layer of the target substance, revealing the deeper layer of the substance.

　　The laser light energy causes chemical and physical changes in the surface layer of the substance, enabling the etching of the required patterns and characters.

　　The laser light energy burns off part of the substance, thereby revealing the desired etched patterns and characters.

　　The fiber laser marking machine is mainly composed of a fiber laser, a galvanometer, a software control board card, a chassis and cabinet, a horizontal platform for placing workpieces, etc.

　　2.2 Application Scope of Fiber Laser Marking Machine

　　Laser marking machines are mainly applied in the following industries: electronic components, integrated circuits (ICs), electrical and electronic appliances, mobile phone communication, hardware products, tool accessories, precision instruments, glasses and watches, jewelry, auto parts, plastic buttons, building materials, PVC pipes, medical devices, etc.

　　The 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 treatments (phosphating, aluminum anodizing, electroplated surfaces), ABS materials (housings of electrical appliances, daily necessities), inks (transparent buttons, printed products), and epoxy resins (encapsulation of electronic components, insulating layers).

　　Working Principle of Fiber Laser Marking Machine

　　After the laser beam with a wavelength of 1060±10nm output by the laser device is expanded internally, it is then directed onto the reflecting mirrors of the two galvanometer scanners for the X-axis and Y-axis. The galvanometer scanners swing rapidly under the control of the computer, enabling the laser beam to scan in the two-dimensional directions of the X and Y axes on the plane. Through the lens, the laser beam is focused on the surface of the processed object to form fine spots with a high energy density. Each high-energy laser spot instantaneously ablates and forms a carving on the surface of the object. Through the continuous process controlled by the computer, the pre-arranged marking contents such as characters and graphics are permanently etched on the surface of the object.

　　2.4 The features are as follows:

　　The fiber laser marking machine uses a fiber laser, with a service life of up to 100,000 hours, and its superior performance ranks among the top in the world.

　　It has a high beam quality, with a fundamental mode (TEM00) output, and the diameter of the focused spot is less than 20um. The divergence angle is one-fourth of that of a semiconductor-pumped laser. The single line is finer, which is especially suitable for fine and precise marking.

　　It has a small volume and low power consumption, with the power consumption of the whole machine being less than 500W. It adopts an internal air-cooling cooling method, getting rid of the bulky water-cooling unit, occupying a smaller area, and being easier to install. It truly achieves energy conservation and portability.

　　It has a high electro-optical conversion efficiency, is simple and easy to use, requires no optical adjustment or maintenance, has a compact structure, a high system integration degree, and few failures.

　　It requires no maintenance at all, has a long service life, and is suitable for working in harsh environments.

　　It has a fast processing speed, which is 2 to 3 times that of a traditional marking machine. With an optical scanning galvanometer, it has a high laser repetition frequency and operates at a high speed without distortion.

　　All fiber lasers are equipped with an optical isolator, which effectively shields the reflected light. It can completely operate on high-brightness and highly reflective materials such as gold, silver, copper, aluminum, and silicon without the need to deviate from the center of the field lens, greatly expanding the application field.

　　The marking software has powerful functions and can be compatible with the files of software such as Coreldraw and AutoCAD. It supports PLT, PCX, DXF, BMP, etc., can directly use the SHX and TTF font libraries, and supports automatic coding, printing of serial numbers, batch numbers, dates, barcodes, QR codes, automatic number skipping, etc., with a USB interface for output control.