开展了高速活性气体保护( MAG)电弧焊接工艺实验, 确定出了不同焊接电流条件下形成驼峰焊道时的临界焊接速度、相邻驼峰之间的距离以及同一驼峰焊道“波峰”和“谷底”的断面形貌. 基于高速MAG电弧焊熔池的视觉检测图像, 分析了驼峰焊道的产生机理, 并利用上坡焊和下坡焊实验进行了验证. 同时, 也分析了保护气体成分对高速MAG电弧焊焊缝成形的影响.
High-speed metal-active gas (MAG) arc welding experiments were conducted to determine the critical welding speeds at which humping defects occur, the spacing between two adjacent humps along the welding direction, and the cross-section morphologies of the hump and the valley in a humping bead. Based on the weld pool images sensed during high-speed MAG welding process, the forming mechanism of humping bead is analyzed and verified through up-hill and down-hill welding experiments. Meanwhile, the effect of the compositions of shielding gas on the weld bead formation in high--speed MAG welding is also analyzed.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%