The fiber laser welding machine
uses high power density, mainly for the welding of thin-walled materials and precision parts, and can realize spot welding, butt welding, overlap welding, sealing welding, etc. It has small welding seam width, fast welding speed, flat welding seam, precise control, small focus, high positioning accuracy, and easy automation.
Welding method of fiber laser welding machine
When using a fiber laser welding machine
, there are two different methods or modes to transfer energy from the laser to the welding material. According to the power density, this is the power factor of the laser. In the welding area, the laser welding mode can be the conduction mode or the keyhole mode. The type of welding mode that occurs is determined by the amount of power delivered to the substrate and the nature of the material being welded. The main difference between the two laser welding methods is the energy delivered to the metal.
Because the energy density is the cross-sectional area of the weld through which the power source passes, changing the welding ratio or dividing the power of the laser beam by the defined type will affect the welding mode. Conductive mode welding is basically done by heating the surface of the material to be welded. Once the surface of the low-energy density weld is heated, it will conduct the heat deeper into the material.
This welding mode is low energy density welding, so the weld size on the surface is usually larger, and the penetration depth of the weld is usually shallow. When moving from low-energy-density welding to high-energy-density welding, the mode changes from conductive mode to keyhole mode. Mention the definition of energy density again, which can be achieved by reducing the size of the weld or increasing the power of the laser beam.
The quality of the workpieces welded by the fiber laser welding machine is very high, and the problem of uneven melting caused by heating is completely avoided when used, and the quality of the product is guaranteed.