电脉冲处理提高焊接质量的方法
By simultaneously setting electric pulse electrodes to apply electric pulse treatment to the areas before and after the welding heat source during the welding process, the problems of weld composition segregation, hot cracking, and residual stress during welding are solved, thereby improving welding quality and increasing production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WEIQIAO LIGHTWEIGHT RESEARCH CENTER AT SOOCHOW
- Filing Date
- 2023-12-13
- Publication Date
- 2026-07-17
AI Technical Summary
During the welding process, highly concentrated instantaneous heat input can lead to problems such as component segregation, hot cracking, large residual stress, and even deformation in the weld seam of the workpiece after welding.
Two sets of electric pulse electrodes are set before and after the welding direction of the welding heat source. Pulse current is applied to the workpiece to be welded synchronously as the welding heat source moves. The temperature gradient during the welding process is improved by electric pulse preheating and treatment, the grain structure is refined, and welding cracking defects and residual stress are reduced.
Improve welding quality, reduce weld grain size, reduce post-weld residual stress, correct welding deformation, and improve welding strength and production efficiency.
Smart Images
Figure CN117444487B_ABST