Fiber laser welder is a welding equipment with a laser as the core component. Fiber laser welder uses a laser light source generated by a laser with good monochromatic, directional, and high brightness characteristics to convert it into a high-energy heat source to melt the surface of the workpiece for welding. The working principle of fiber laser welder is: The laser beam generated by the laser is focused by the optical system and irradiated on the surface of the workpiece to be welded. The extremely high heat generated by the laser beam in contact with the material melts the contact point quickly. Under the action of high temperature, the molten parts of two or more workpieces (including metal, plastic and other materials) fuse and solidify, so as to achieve a firm connection.
Using fiber laser welder to weld is a high-energy density welding method. By focusing the laser beam on the solder joint, the metal surface is quickly heated and melted, and then the material is connected.The principle of our fiber laser welder mainly includes the following aspects：
1. Optical focusing: Fiber laser welder uses the laser beam generated by the laser and focuses it through optical components such as lenses or mirrors to concentrate the laser energy on the solder joints.
2. Heat conduction: When the laser beam is irradiated on the surface of the workpiece, the laser energy is absorbed and converted into heat energy. Through heat conduction, heat energy is gradually transmitted along the metal conduction part of the welded joint, causing its temperature to increase.
3. Melting and mixing: When the metal surface is subjected to a sufficiently high temperature, the metal begins to melt and a bath is formed. Under the action of the laser beam, the bath quickly diffuses and mixes to reach the connection of the metal joint.
4. Cooling and solidification: Once the irradiation of the laser beam is stopped, the bath will gradually cool down and a welded joint will be formed during the solidification process. During the solidification process, the metal molecules rearrange and crystallize to form a solid welded connection.
The laser welding of our fiber laser welder has the advantages of high energy density, small heat input, fast welding speed, and small heat-affected area. It is widely used in welding tasks of various metal materials in industrial production, such as automobile manufacturing, electronic devices, aerospace and other fields.
Composition of fiber laser welder:
1. Laser welding host: The laser welding host consists of a power supply, a laser, an optical path part, and a control system to provide the energy required for welding processing.
2. Cooling system: The cooling system is a device used to dissipate heat and cool down, mainly to ensure the stability and service life of laser welding machines, especially high-power machines, working in high-temperature environments for a long time.
3. Tooling and fixtures: Tooling and fixtures are generally tools used to fix welding during welding operations, especially in mass production, which is one of the essential equipment, which will directly affect production efficiency.
4. Workbench: The workbench refers to the active laser welding workbench, which is to enable the laser beam to move in accordance with specific requirements and welding operation trajectories, and realize the automatic welding function.
5. Observation system: Laser welding machines are generally equipped with an observation system, which can observe the ongoing welding operations in real time, which is conducive to accurate positioning and inspection of the welding effect.
Advantages of fiber laser welder：
1. Excellent welding quality: the width of the weld is narrow and the heat-affected area is small, which can reduce thermal deformation, avoid problems such as pores and cracks, and the welding quality is more stable.
2. Welding efficiency and high efficiency: it can achieve rapid welding, shorten welding time and production cycle, and reduce production costs.
3. Easy to operate: laser welding has a high degree of intelligence, simple operation and easy to master.
4. Environmental protection and energy saving: Compared with traditional welding equipment, laser welding machines can achieve non-contact welding without harming the environment and the human body.