适用扩散焊的点状焊接中间层制备方法、焊接方法及航天飞行器
By combining inkjet printing and point laser scanning, the challenge of high-precision welding of curved structures has been solved, achieving uniformity of element diffusion and improved welding quality during the welding process, thus meeting the high-end manufacturing needs of aerospace vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AVIC BEIJING AERONAUTICAL MFG TECH RES INST
- Filing Date
- 2026-04-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to achieve high-precision, dense joint welding of curved structures. Traditional methods suffer from problems such as insufficient precision, poor surface adaptability, low curing efficiency, and unstable joint quality, which cannot meet the stringent requirements of aerospace vehicles.
A composite process combining inkjet printing and point laser scanning is used to prepare a dot-matrix welding intermediate layer. By precisely depositing solder through inkjet printing and heating it with point laser scanning, the intermediate layer can be accurately patterned and locally cured rapidly. This method is suitable for welding dissimilar metals and difficult-to-weld metal joints.
It achieves precise patterned deposition of the intermediate layer, reduces post-weld residue, improves welding compatibility, ensures uniform element diffusion during welding, avoids substrate deformation and oxidation, significantly shortens curing time, improves welding quality, increases material utilization, and reduces costs.
Smart Images
Figure CN122210197B_ABST