Views: 38 Author: heyu Publish Time: 03-06-2021 Origin: Site
The laser welding system shines a high-intensity laser beam onto the metal surface, melting it to form a weld by the contact of the laser and the metal.. In the process of laser-metal interaction, metal melting is only one of the physical phenomena. Sometimes time energy is not mainly converted into metal melting, but manifested in other forms, such as vaporization, plasma formation, etc.
However, to achieve good fusion welding, metal melting must be the main form of energy conversion. For this reason, it is necessary to understand the various physical phenomena produced by the interaction between laser and metal and the relationship between these physical phenomena and laser parameters. By controlling the laser parameters, most of the laser energy can be converted into metal melting energy to achieve welding. purpose.
What are the advantages and disadvantages of handheld fiber laser welding machines?
Advantages of handheld laser welding machine
Hand-held laser welding machine adopts fiber laser. The laser achieves long-distance output through optical fiber. It is also called fiber laser welding machine. Therefore, it is more popular with users in terms of beam quality, spot, energy loss and welding freedom. The equipment is streamlined and flexible in use. The price is still cheap, and the focus is on the welding function and process quality that are more powerful than the hard-optical spot welder. The cheaper laser welding machine used to be the hard-optical laser spot welder. The machinery is relatively "stupid" and not just occupied, which is the biggest downside. The area is wide, the welding process and application range are still small, the welding speed is insufficient, and the versatility is lacking.
And some hand-held fiber laser welding machines adopt a new technology of swinging the laser welding head (shaking) to realize the adjustment of various parameters such as light spot, so you don’t need to worry that the distance between the workpieces is a little too large and will affect the welding (generally the distance can be 3 -5MM can be welded), which significantly improves the application function and scope of welding, and reduces the difficulty of welding!
Disadvantages of handheld laser welding machine
The assembly accuracy of the parts that need welding is extremely important to the laser welding machine, as is the fact that the location of the beam on the workpiece cannot be significantly changed. This is because after the laser is focused, the spot size is small and the weld is narrow, which is filled with metal materials. It is easy to trigger welding defects if the workpiece assembly accuracy or beam positioning accuracy do not meet the specifications.
