Principle and Structure of Fiber Laser Welding Machine

Fiber laser welding machine is a new type of welding method, mainly used for welding thin-walled materials and precision parts. It can achieve spot welding, butt welding, stacking welding, sealing welding, etc., with high aspect ratio, small weld width, small heat affected zone, small deformation, fast welding speed, smooth and beautiful weld seam, no or only simple treatment after welding, and high weld quality.

Fiber laser welding machines are widely used in fields such as smartphone communication, nearsighted glasses clocks, jewelry decorations, hardware products, high-precision equipment, automotive parts, and craft products. Fiber laser welding equipment can be used for welding various metal materials such as titanium, nickel, zinc, copper, aluminum, chromium, niobium, gold, silver, as well as alloy products such as aluminum alloys, steel, and Kovar aluminum alloys.

The working principle of fiber laser welding machine:

Fiber laser welding machine is a laser welding equipment that couples high-energy laser beams into optical fibers, transmits them over long distances, collimates them into parallel light through a collimating mirror, and focuses them on dry workpieces for welding. It performs flexible transmission non-contact welding on parts that are difficult to access for welding, providing greater flexibility. Fiber laser welding machine laser beam can achieve time and energy splitting, and can process multiple beams simultaneously, providing conditions for more precise welding.

Fiber laser welding machines can be divided into pulse laser welding and continuous laser welding according to the different output modes of the laser beam. If based on the formation characteristics of the weld seam during laser welding with fiber laser welding machine, laser welding can be divided into thermal conductivity welding and deep penetration welding. The former has low laser power, long formation time of the molten pool, and shallow depth of fusion. Mostly used for welding small parts; The latter has a high laser power density and a fast melting rate of the metal in the laser radiation zone. Along with the melting of the metal, there is strong vaporization, which can obtain a weld with a larger depth and width. The weld can be selected as 12:1.

Composition structure of fiber laser welding machine:

1. Laser system: composed of laser, laser power supply, laser control card, optical path and other main components.

2. Cooling system: Due to the high-power operation of the laser welding machine during operation, high-energy heat is generated. The cooling system can cool the laser, and the power of the chiller equipped varies depending on the power.

3. Workbench cabinet: The workbench is made of stainless steel platform, and the space on the platform can include brackets for placing displays and measuring instruments; Compact in size, the tabletop layout can be determined according to user requirements, such as installing manual lifting mechanisms.

4. CCD real-time observation system: It can observe the welding points of laser welding at any time and track the running trajectory.

5. Installation of automated equipment system: The fiber laser welding machine can be used in conjunction with three-axis and four axis linked workbenches, robotic arms, and cantilever workbenches to achieve precise welding motion trajectory control.

Simply put, it consists of the above systems. If you want to learn more about fiber laser welding machines, you can contact Shangtuo Laser Technology Co., Ltd. at any time. Professional answers will definitely satisfy you.