LASER SOLDERING PROCESS
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-02-22
- Publication Date
- 2026-04-08
AI Technical Summary
Existing laser brazing methods face challenges in achieving high-speed joining of steel and aluminum-based materials with excellent joining strength and appearance, as they struggle with wettability issues, limited filler wire feed, and the need for high-power lasers due to inefficient heat distribution.
The method involves irradiating a preceding laser beam to preheat the joint area, feeding an electrically-heated filler wire with a tilt angle of 0° to 19° relative to the joining direction, and using a following laser beam to melt the wire, optimizing distances and angles to ensure deep penetration and uniform heating, thereby enhancing wettability and appearance.
This approach enables high-speed brazing with excellent joint strength and appearance, reducing the need for flux coating and high-power lasers, while ensuring deep penetration and stable joint formation.