Abstract Welds on AA 5083-H111 and AA 6082-T6 plates were performed in T-butt and T-lap configurations using three different tool pin geometries: tapered and threaded, quadrangular pyramidal and progressive pin, part threaded cylindrical and part pyramidal. Tunnel defects, kissing bond and oxides lines were observed in joints produced with the pyramidal pin tool and welds produced with the tapered pin tool only showed the presence of kissing-bond defects. The welds produced with the progressive tool did not reveal defects. No significant change in hardness was observed in all combinations of tool and joint geometry and the best mechanical performance was obtained with the welds produced with the progressive tool in the T-butt configuration. The T-butt joint configuration shows better FSW performance than the T-lap joint configuration.

中文翻译：

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搅拌摩擦焊铝 T 型接头的评估

摘要 AA 5083-H111 和AA 6082-T6 板上的焊接采用T 形对接和T 形搭接配置，使用三种不同的工具销几何形状：锥形和螺纹、四角锥形和渐进式销、部分螺纹圆柱形和部分锥形。在用锥形销工具生产的接头中观察到隧道缺陷、接吻结合和氧化物线，用锥形销工具生产的焊缝仅显示存在接吻结合缺陷。使用渐进式工具产生的焊缝没有发现缺陷。在工具和接头几何形状的所有组合中都没有观察到硬度的显着变化，并且在 T 形对接配置中使用渐进式工具生产的焊缝获得了最佳机械性能。T 型对接接头配置比 T 型搭接接头配置显示出更好的 FSW 性能。