1060／3003铝合金搅拌摩擦焊焊接接头材料流动规律研究

Study on Flow Visualization with Friction Stir Welding of 1060 Aluminum and 3003 Aluminum

摘要:

搅拌摩擦焊中，材料的流动状态对焊件性能有很大影响。对5mm厚的1060／3003铝合金板材进行了搅拌摩擦焊连接。通过对1060／3003铝合金焊件焊核区腐蚀，研究了焊核区金属的流动形态。分析了不同工艺参数下垂直截面和水平截面的金属流动形态。结果表明：工参数对搅拌摩擦焊焊核区金属的流动形态有很大影响。通过使用较高的工具旋转速度和合适的焊接速度可以获得稳定、质量良好的搅拌摩擦焊接头。

Abstract:

The metal flowing behavior in welding zone of FS welds has great influence on the welds mechanical performance. The friction stir welding (FSW) of 5 mm thickness plates of 1060 Al/3003 Al was carried out. The flow of metal during FSW was investigated by etching of the nugget in the welding zone of the 1060 Al/3003 Al. The flow visualization was examined in the range of welding parameters. The transverse and horizontal cross section was analyzed. The result shows that the process parameters influence the metal flow visualization greatly. With a high tool rotational speed and a proper welding speed, a steady and well-welded join can be produced.