【摘要】 对2195-T8与2219-T6薄板进行了搅拌摩擦焊接(FSW)试验。在恒定转速(TRS)的条件下,研究了接头性能与焊接走速(TS)和不同前进侧材料之间的关系。结果表明,在研究采用的参数范围内提高焊接走速有助于增强接头的力学性能;将2195置于前进侧的接头性能要优于2219作为前进侧,而无论何种材料为前进侧,断裂始终发生在2219一侧的焊核边界;纵向拉伸的结果显示,焊核的力学性能强于2219一侧焊核边界材料。同时结合焊缝组织演化,对接头力学性能的演化规律做出了分析。更多还原

【Abstract】 2195-T8 and 2219-T6 sheets were welded by friction stir welding(FSW). With constant tool rotation speed(TRS), effects of travelling speed(TS) and advancing side material(AS material) on the mechanical properties of the joint were studied. The results show that higher travelling speed improves the mechanical properties of the FSW joint. Whichever the AS material is, fracture always occurs at the boundary of the welding nugget zone(WNZ)/thermomechanical affected zone(TMAZ) to the 2219 side. Longitudinal tensile tests indicate that mechanical property of the WNZ is better than that at the boundary of WNZ/TMAZ to the 2219 side.更多还原