Hand-held laser welding

Hand-held laser welding uses high-energy-density laser beams as the heat source for efficient and precise welding. Because laser welding requires higher pre-processing accuracy of the workpiece. The position of the beam on the workpiece cannot significantly shifted. To the requirements, it is easy to cause welding defects. So that the technological ability of laser welding 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 introduce 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 and precise welding achieve.

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

In traditional laser vibration welding. To the workpiece to form a weld with a certain amplitude, frequency and offset.

Compared to 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 produce 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 formability.