一种防止异种金属结构件复合焊接裂纹的方法
By employing a combination of explosive welding and laser or electron beam welding in dissimilar metal structural components, the depth and spacing of the weld area are controlled, solving the problem of welding cracks in complex surface structures and large equipment, and achieving high-strength dissimilar metal connections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP CO LTD
- Filing Date
- 2023-09-26
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to prevent welding cracks when welding dissimilar metal structural components on complex surface structures or on large or precision pre-formed equipment, especially due to residual stress and the effects of brittle intermetallic compounds.
The intermediate structural layer is bonded to the substrate using explosive welding or hot-pressing composite methods. Then, laser or electron beam welding is used to bond the layers from the other side of the substrate. By controlling the depth, diameter, and spacing of the weld area, independent closed curved surface welds are formed. The explosive welding parameters are calculated by combining the conservation of function and momentum.
It effectively inhibits the propagation of welding cracks, improves welding strength, ensures stable connection of dissimilar metal structural components, and meets the needs of industrial applications.
Smart Images
Figure CN117182368B_ABST