Increasingly Popular Laser Welding Machines

It has a high degree of automation and a simple welding process. According to the working method, it is divided into laser mold welding machine, automatic laser welding machine, laser spot welding machine, optical fiber transmission laser welding machine, etc. The weldable graphics include: point, straight line, circle, square Or any plane graphics drawn by AUTOCAD software.

Laser welding uses high-energy laser pulses to locally heat materials in a small area. The energy of laser radiation diffuses into the interior of the material through heat conduction, and the material is melted to form a specific molten pool. It is a new type of welding method, mainly aimed at the welding of thin-walled materials and precision parts, which can realize spot welding, butt welding, lap welding, sealing welding, etc., with high depth-to-width ratio, small weld width, and small heat-affected zone. The deformation is small, the welding speed is fast, the weld seam is smooth and beautiful, no treatment is required or only simple treatment is required after welding, the weld seam quality is high, there is no air hole, it can be precisely controlled, the focusing light spot is small, the positioning accuracy is high, and it is easy to realize automation.

Laser welding machine is also often called laser welding machine, energy negative feedback laser welding machine, laser welding machine, laser welding machine, laser cold welding machine, laser xenon welding machine, laser welding equipment, etc. According to its working mode, it can be divided into laser mold welding machine (manual laser welding equipment), automatic laser welding machine, jewelry laser welding machine, laser spot welding machine, optical fiber transmission laser welding machine, galvanometer welding machine, hand-held welding machine etc. Special laser welding equipment includes sensor welding machine, silicon steel sheet laser welding equipment, keyboard laser connection equipment.

Weldable graphics include: points, straight lines, circles, squares or any plane graphics drawn by AUTOCAD software.

Laser welding machine parameters

1) Power density

Power density is one of the most critical parameters in laser processing. With a higher power density, the surface layer can be heated to the boiling point within microseconds, resulting in a large amount of vaporization. Therefore, high power density is beneficial for material removal processes such as drilling, cutting, and engraving. For a lower power density, it takes several milliseconds for the surface temperature to reach the boiling point. Before the surface layer vaporizes, the bottom layer reaches the melting point, which is easy to form a good fusion weld. Therefore, in conductive laser welding, the power density is 104~106W/cm2 in Fan Wei.

2) Pulse waveform

Pulse waveform is an important issue in welding, especially for sheet welding. When the high-intensity beam hits the surface of the material, some energy on the metal surface will be reflected and lost, and the reflectivity will vary with the surface temperature. During a pulse, the metal reflectivity changes greatly.

3) Pulse width

Pulse width is one of the important parameters of pulse welding. It is not only an important parameter different from material removal and material melting, but also a key parameter that determines the cost and volume of processing equipment.

The scope of application of laser welding machines is mainly in manufacturing, powder metallurgy, automotive industry, electronics industry, biomedicine and some other fields.

The main feature of the laser welding machine is that the laser welding machine has a high degree of automation and a simple welding process. The non-contact operation method can meet the requirements of cleanliness and environmental protection. The use of laser welding to process workpieces can improve work efficiency, and the finished workpiece has beautiful appearance, small weld seam, large welding depth and high welding quality. Organ welding machine is widely used in dental denture processing, keyboard welding, silicon steel sheet welding, sensor welding, battery sealing cover welding and so on. However, the cost of laser welding machines is high, and the precision requirements for workpiece assembly are also high, and there are still limitations in these aspects.

Welding methods mainly include electric arc welding, argon arc welding, plasma arc welding, and electron beam welding.

The development of electronic technology, computer microelectronics and automation technology has promoted the development of welding automation technology. In particular, the introduction of unit technologies such as numerical control technology, flexible manufacturing technology and information processing technology has promoted the development of the welding automation technology revolution.

The first decade of this century will be a favorable period for the rapid development of the welding industry. Our welding workers have a long way to go, and we must establish the determination to overcome difficulties. Seize the opportunity and work hard to improve the level of welding automation in our country.