The principle of fiber optic welding machine

The principle of fiber optic welding machine varies depending on its specific type and application scenario, but the basic idea is to melt the fiber end face or the surface of the material to be welded in some way to achieve connection. The following are detailed explanations of the two main types of fiber optic welding machines and their principles:

1、 Ordinary fiber optic welding machine

Ordinary fiber optic welding machines are mainly used in fields such as fiber optic communication, optical measurement, and optical device manufacturing. The principle is to generate arc discharge, melt the fiber end face, and then combine the two fiber end faces together under pressure to achieve fiber welding. This welding machine usually consists of a power supply, controller, microscope, welding head, and cooling system. The operator observes the image of the welding head through a microscope and controls the movement of the welding head through a controller to accurately align the fiber end face and generate arc discharge. The high temperature generated by arc discharge melts the fiber end face, and then under pressure, the two melted fiber end faces are combined together, and after cooling, they form a strong welded connection.

2、 Fiber laser welding machine

Fiber laser welding machines use high-energy laser beams generated by lasers as welding heat sources. Its working principle is to use a semiconductor pumped solid-state laser to output a high-power density pulsed laser beam, which is transmitted to the welding head through an optical fiber. The laser beam is adjusted by a collimating lens and a focusing lens to become a high-density laser beam. When the laser beam is irradiated onto the welding material, the laser energy is absorbed and converted into thermal energy, causing local melting of the welding material. By controlling parameters such as laser beam power, focal length, and scanning speed, precise welding operations can be achieved. Fiber laser welding machine has the advantages of fast welding speed, high weld quality, and small heat affected zone, and is widely used in the welding processing of metal materials and the connection of certain special optical fibers.

summary

Although the principles of fiber optic welding machines are different, they are all based on the principles of thermal energy transfer and material melting to achieve the connection of optical fibers or materials. Ordinary fiber welding machines mainly generate high-temperature melting of fiber end faces through arc discharge, while fiber laser welding machines use high-energy laser beams to irradiate the welding material to locally melt it. Both types of welding machines play important roles in their respective application fields, improving the quality and speed of fiber optic connections.