轨道车体自动化搅拌摩擦焊接技术研究
Research on Automatic Friction Stir Welding Technology for Rail Train Body
- 2023年53卷第6期 页码:42-47
DOI: 10.7512/j.issn.1001-2303.2023.06.07
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钱璐楠,李春生.轨道车体自动化搅拌摩擦焊接技术研究[J].电焊机,2023,53(6):42-47.
QIAN Lunan, LI Chunsheng.Research on Automatic Friction Stir Welding Technology for Rail Train Body[J].Electric Welding Machine, 2023, 53(6): 42-47.
轨道列车车体生产采用搅拌摩擦焊接技术进行铝合金型材的拼接,传统焊接控制需要人工对焊接深度和焊接位置进行实时调整,当焊接行程变长后,不仅增加了工人劳动强度,且焊接效率低下,质量不高。为解决该问题,采用辅助焊接技术对焊接控制进行升级,通过恒压力控制技术自动检测焊接深度并进行自适应调节,实现焊接Z向深度的自动控制;通过激光跟踪扫描技术实时检测焊缝位置,实时自动调整焊接Y向位置;最终结合数控编程,完成无人干预一键焊接,实现轨道列车车体产品的自动化焊接。实践应用表明,单块产品的焊接时间由1 h缩短至40 min,焊接质量合格率由原来的约87%上升至约95%。
Friction stir welding technology is used to splice aluminum alloy profiles in the production of rail train body. Traditional welding control requires real-time manual adjustment of welding depth and position. When the welding stroke becomes longer, the labor intensity of workers is increased, and the welding efficiency is low and so is the quality. Therefore, the auxiliary welding technology is needed to upgrade the welding control: constant pressure control technology is used to automatically detect the welding depth and make adaptive adjustment to realize the automatic control of the welding Z-direction depth; laser tracking technology is used to detect and adjust the welding Y-direction position in real-time; finally, by combining NC programming, the automatic welding of rail train body products can be realized. Practical applications have shown that the welding time of a single product has been shortened from 1 hour to 40 minutes, and the welding quality qualification rate has increased from about 87% to about 95%.
搅拌摩擦焊自动化激光跟踪恒压力控制轨道车辆
rail train bodyfriction stir weldingautomaticlaser tracking technologyconstant pressure control technology
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