Handheld laser welding, a new influencer in the laser industry?

[Rayclass | Rui Class] Issue 23: Handheld laser welding, a new influencer in the laser industry?


-Suitable for welding of various specifications of metal, even the internal welding of sheet metal and splicing angle welding can be easily welded and penetrated, and the workpiece can be welded at any position and at any angle;

-Compared with traditional argon arc welding, the efficiency is improved by more than 50%, and it is smooth and uniform, and it is easy to be polished or no grinding after welding;

-Flexible and convenient, simple operation, can be operated without professional welders, can realize outdoor welding;



The new net red in the laser industry- handheld laser welding

Laser welding uses high-energy-density laser beams as the heat source for efficient and precise welding. Because laser welding requires high precision in pre-processing of the workpiece, the position of the beam on the workpiece cannot be significantly shifted. To the requirements, it is easy to cause welding defects, so that the technological ability of laser welding is limited to a certain extent. This is due to the small spot size and narrow weld seam after laser focusing.

In view of the limitations of the above laser welding technology, the market has gradually introduced a laser welding method of double wedge laser vibration, which is realized by configuring a special wobble vibration module on the welding head. The application of wobble welding technology can make laser welding more widely used. For larger workpieces and wider welding seams, laser efficient welding can be achieved.

wobble handheld welding head

Advantages of handheld laser welding technology


In traditional laser vibration welding, the collimated beam is vibrated through a single-axis galvanometer, and the spot focused by the focusing lens is moved with the welding head to move relative to the workpiece to form a weld with a certain amplitude, frequency, and offset.



Two traditional vibration welding


Compared with the first two vibration welding modes, the double-wedge mirror rotary vibration welding uses a vibration module installed between the collimator lens and the focusing lens to make the focused spot generate a spiral-shaped weld when the welding head moves. When the focal length is the same, the larger the twist angle, the larger the vibration amplitude; when the twist angle is the same, the larger the focal length, the larger the vibration amplitude. Double wedge-shaped vibration welding can widen the weld seam and obtain better weld seam formability.


VS traditional handheld laser welding welding


What are the advantages of handheld laser welding over traditional welding and laser welding? We understand through the following table:


Based on the development trend of the welding industry, Ruike has developed a new generation of 1000W welding version of continuous fiber laser suitable for handheld laser welding applications. More handheld laser welding related application cases, please stay in the next issue.