Shenzhen You Kong Laser Technology Co., Ltd

Shenzhen You Kong Laser Technology Co., Ltd

Share the working principle of precision welding of laser welding machine

2021 10/27

The welding process of laser welding machine equipment belongs to heat conduction type, that is, the laser radiation heats the surface of the workpiece, the surface heat diffuses through the heat transfer guide, and the workpiece melts and produces a specific molten pool by controlling the parameters such as laser pulse width, energy, peak power and repetition frequency. Because of its unique advantages, it has been successfully used in the precision welding of micro and small parts. Many people don't know much about the working principle of laser welding. Let's learn more details with the editor!
Share the working principle of precision welding of laser welding machine
Working principle of laser welding machine:
In fact, the principle of laser welding machine is to complete welding through pulsed laser beam. Its principle can be divided into heat conduction and laser deep melting.
The so-called heat conduction principle refers to the radiation heating of the area to be welded. When the heat on the surface gradually penetrates into the interior of the material through heat conduction, the workpiece can be melted through relative energy, even repetition frequency and coherent laser parameters.
Laser deep penetration is to complete the work under the continuous laser beam to realize the interconnection of materials and welding depth. After technical upgrading (also divided into pulse laser welding and continuous laser welding), pulse laser welding ≤ 100 light points per second, while continuous laser welding can reach ≤ 5000 light points per second. This welding principle will enable welding materials to receive laser beam energy quickly and efficiently at a certain point under sufficient high-density laser irradiation, In this way, the metal material can be completely melted and penetrated.
Share the working principle of precision welding of laser welding machine

Advantages of precision welding of laser welding machine:

Boom Type Die Png

1. Selective energy application in small area: reduce thermal stress and heat affected zone, and extremely low distortion
2. Narrow joint and smooth surface: reduce or even eliminate reprocessing
3. Combination of high strength and low welding volume: the welded workpiece can withstand bending or hydroforming
4. Easy integration: it can be combined with other production operations, such as alignment or bending
5. Only one side of the joint needs to be close
6. High technology speed to shorten processing time
7. Especially applicable to automation technology
8. Good program control: machine tool control and sensor system detect technical parameters and ensure quality
9. The laser beam can produce solder joints without contacting the workpiece surface or applying force to the workpiece.
Share the working principle of precision welding of laser welding machine
Laser welding technology has the purification effect of molten pool, can purify weld metal, and is suitable for welding between the same and different metal materials. Laser welding has high energy, which is particularly beneficial to metal welding with high melting point, high reflectivity, high thermal conductivity and great differences in physical properties.