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The introduction of laser technology in the industrial field has become increasingly extensive. The good application of laser technology, laser technology has the advantage of high precision, high speed, non-contact, easy control, easy realization of automated processing, etc., and has been widely used in material processing, aerospace, communications and other industries. This article will focus on the industrial applications of laser technology and discuss its working principle.

Among the various industrial applications of laser technology, laser cutting is the most widely used. Laser cutting is a process in which a laser beam is used to heat and melt the material to be cut, and a continuous cutting head is used to separate the material along the pre-designed graphics without manual manipulation. The laser cutting process has a wide range of applications in metal sheets and tubes such as hardware tools, electrical hardware, auto parts, storage shelves, autoclave boards, etc., and can be used in materials such as carbon steel, stainless steel, aluminum, copper, brass, titanium and other metal sheets and tubes The cutting can be completed quickly and efficiently.

Laser marking is also an important application of laser technology in industrial production. Laser marking is the use of laser beam to directly act on the material surface, causing partial physical or chemical changes, so as to obtain the corresponding pattern or text expression. Laser marking can be used in many fields such as metal parts, electronic components, instrument boxes, switches, buttons, auto parts, aerospace and so on. It has the advantages of fast marking speed, anti-counterfeiting effect, no contact and no pollution, which is also an important application of laser technology in industrial production.

Laser welding is an important application of laser processing in industry. Laser welding is the use of laser beam to generate high energy density in the irradiated spot on the surface of the material. Under the action of the energy, the surface material melts to form a molten pool, and after cooling and solidification, the two contact surfaces can be firmly combined. The application of laser welding in the electronic, communication, aviation, automotive, chemical and other industries is very extensive.

The working principle of laser technology can be briefly described as the supply of laser energy by the laser source, its shaping for focusing by the optical path, and its incidence of the target object through the laser beam shaping device for processing. Specifically, it mainly includes three parts: laser, optical path and laser beam shaping device. Laser is the energy source of laser processing, optical path is the medium for transmitting laser energy, and laser beam shaping device is the device used to focus laser energy on the workpiece surface.

High-power laser is the source of laser processing. Its working principle is mainly based on the principle of stimulated emission. The laser beam emitted by high-power laser is a coherent light that is mainly composed of a single wavelength, and its energy is concentrated on a very small area, which can be up to tens of thousands of times the power per area than the average light. That\'s why it has such a very high power.

The optical path accepts and transports the laser energy output from the laser to the object. The optical path mainly includes mirror reflection, length expansion, refractive light splitting, optical lens and other elements. The composition of optical path system can adjust the size of laser spot and the power density of laser energy on the surface of workpiece.

The laser beam shaping device is the device used to shape the energy of the laser on the surface of the object. It mainly includes a scanner, a linear focus scan, and a fiber End. Its main function is to focus and shape the laser energy on the objects, so as to achieve the purpose of processing.

In summary, the application of laser technology in the industrial field has become increasingly extensive, and it has many advantages of high precision, high speed, non-contact processing, easy control, and easy realization of automated processing. Its working principle is mainly composed of three parts: laser, optical path and laser beam shaping device. With the continuous development of laser technology, it will become more and more widely used in production.

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