6005A FSW接头金属运动行为研究
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摘要
采用搅拌摩擦焊对6005A进行焊接,并对垂直、平行焊接方向接头不同区域的组织进行研究。结果表明:搅拌摩擦焊接头前进侧金属运动迹象大于后退侧,前进侧"匙孔"边缘底部基本保留了搅拌针形貌;在垂直焊缝方向,前进侧晶粒呈明暗带状分布的"洋葱环"结构,距离焊缝中心越远越明显,后退侧组织致密且过渡平缓;在平行焊缝方向,前进侧边缘塑性金属运动痕迹强烈,为连续锯齿状形貌,该形貌向焊缝中心逐渐减弱并消失于后退侧。
The friction stir welding of 6005 A was carried out. The microstructure of each zone of welded joint perpendicular or parallel to welding direction was studied. The results show that the sign of metal movement of advance side is more obvious than that of retreating side. The shape of the pin is remained at the bottom of key hole edge of the advance side.In the vertical direction, the grains of the advancing side show onion ring structure with light and shade bands, the father the distance from the welding center is, the more obvious the structure is. The structure of retreating side is dense and smooth. In the longitudinal direction, the moving trace of the plastic metal on the edge of the advancing side is strong, which is continuous serrated shape. The morphology gradually weakens from the edge of advancing side to the center of the weld and disappears at the retreating side.
The friction stir welding of 6005 A was carried out. The microstructure of each zone of welded joint perpendicular or parallel to welding direction was studied. The results show that the sign of metal movement of advance side is more obvious than that of retreating side. The shape of the pin is remained at the bottom of key hole edge of the advance side.In the vertical direction, the grains of the advancing side show onion ring structure with light and shade bands, the father the distance from the welding center is, the more obvious the structure is. The structure of retreating side is dense and smooth. In the longitudinal direction, the moving trace of the plastic metal on the edge of the advancing side is strong, which is continuous serrated shape. The morphology gradually weakens from the edge of advancing side to the center of the weld and disappears at the retreating side.
引文
[1]史耀武,唐伟.搅拌摩擦焊的原理与应用[J].电焊机, 2000,30(1):6-9.
[2]姚君山,张彦华,王国庆,等.搅拌摩擦焊技术研究进展[J].宇航材料工艺,2003,33(4):24-29.
[3] Dong P, Li H, Sun D, et al. Effects of welding speed on the microstructure and hardness in friction stir welding joints of6005A-T6 aluminum alloy[J]. Materials&Design, 2013, 45:524-531.
[4] Su J Q, Nelson T W, Mishra R, et al. Microstructural investigation of friction stir welded 7075-T651 aluminum[J]. Acta Materialia, 2003, 51(3):713~729.
[5] Guerra M, Schmidt C, Mc Clure J C, et al.Flow patterns during friction stir welding[J]. Materials characterization, 2002, 49(2):95-101.
[6]栾国红.搅拌摩擦焊流变特性研究[J].航空制造技术, 2003(11):22-25.
[7]周鹏展,钟掘,贺地求,等.2519厚板搅拌摩擦焊接工艺组织分析[J].中南大学学报,2006,37(1):114-118.
[8]王希靖,韩晓辉,李常锋,等.厚铝合金板搅拌摩擦焊塑性金属不同深度的水平流动状况[J].中国有色金属学报,2005,15(2):198-204.
[9] Simar A, Lecomte-Beckers J, Pardoen T, et al. Effect of boundary conditions and heat source distribution on temperature distribution in friction stir welding[J]. Science and Technology of Welding&Joining, 2006, 11(2):170-177.
[10]王快社,沈洋,王训宏,等.工艺参数对搅拌摩擦焊洋葱圆环形成的影响[J].热加工工艺,2005,34(8):45-46.
[11]李宝华,唐众民,鄢江武,等.搅拌头形状对搅拌摩擦焊接头中洋葱环形貌的影响[J].热加工工艺, 2010, 39(19):156-158.
[12]王希靖,达朝炳,李晶,等.搅拌摩擦焊焊缝中的洋葱环形成分析[J].中国有色金属学报,2006,16(10):1672-1677.
[2]姚君山,张彦华,王国庆,等.搅拌摩擦焊技术研究进展[J].宇航材料工艺,2003,33(4):24-29.
[3] Dong P, Li H, Sun D, et al. Effects of welding speed on the microstructure and hardness in friction stir welding joints of6005A-T6 aluminum alloy[J]. Materials&Design, 2013, 45:524-531.
[4] Su J Q, Nelson T W, Mishra R, et al. Microstructural investigation of friction stir welded 7075-T651 aluminum[J]. Acta Materialia, 2003, 51(3):713~729.
[5] Guerra M, Schmidt C, Mc Clure J C, et al.Flow patterns during friction stir welding[J]. Materials characterization, 2002, 49(2):95-101.
[6]栾国红.搅拌摩擦焊流变特性研究[J].航空制造技术, 2003(11):22-25.
[7]周鹏展,钟掘,贺地求,等.2519厚板搅拌摩擦焊接工艺组织分析[J].中南大学学报,2006,37(1):114-118.
[8]王希靖,韩晓辉,李常锋,等.厚铝合金板搅拌摩擦焊塑性金属不同深度的水平流动状况[J].中国有色金属学报,2005,15(2):198-204.
[9] Simar A, Lecomte-Beckers J, Pardoen T, et al. Effect of boundary conditions and heat source distribution on temperature distribution in friction stir welding[J]. Science and Technology of Welding&Joining, 2006, 11(2):170-177.
[10]王快社,沈洋,王训宏,等.工艺参数对搅拌摩擦焊洋葱圆环形成的影响[J].热加工工艺,2005,34(8):45-46.
[11]李宝华,唐众民,鄢江武,等.搅拌头形状对搅拌摩擦焊接头中洋葱环形貌的影响[J].热加工工艺, 2010, 39(19):156-158.
[12]王希靖,达朝炳,李晶,等.搅拌摩擦焊焊缝中的洋葱环形成分析[J].中国有色金属学报,2006,16(10):1672-1677.