铝合金搅拌摩擦焊已应用于多个工业领域。搅拌摩擦焊的焊接接头须具有优异的弹塑性及与基体金属相似的变形性能。在本研究中，将双面搅拌摩擦焊与传统的单面板进行对比。采用具有不同搅拌针长度(搅拌针长度为合金板厚度的50%~95%)的可调节工具对合金板材进行双面搅拌摩擦焊。研究焊接接头的宏观、微观形貌，强度和硬度以确定搅拌针的最佳插入深度。结果表明，当搅拌针长度为合金板厚度的65%时，双面搅拌摩擦焊焊接接头的极限抗拉强度比单面搅拌摩擦焊接接头的极限抗拉强度提高了41%。
Friction stir welding (FSW) of aluminum alloys is currently utilized in several modern industries. The joints must have sufficient elastic?plastic response and formability levels similar to that of the base metal. In this work, double-sided FSW of AA6061 sheet was compared with its conventional single-sided one. An adjustable tool with different pin lengths (50%?95% of the sheet thickness) was used to perform the double-sided welds. Macro- and micro-structures, strength, and hardness of the joints were investigated to determine the optimum pin penetration depth. The best results were obtained for a double-sided joint made by a pin length equal to 65% of the sheet thickness, which showed an increase of 41% in the ultimate tensile strength compared with the single-sided joint.
参考文献
| [1] | Firouz FADAEIFARD;Khamirul Amin MATORI;Meysam TOOZANDEHJANI;Abdul Razak DAUD;Mohd Khairol Anuar Mohd ARIFFIN;Norinsan Kamil OTHMAN;Farhad GHARAVI;Abdul Hadi RAMZANI;Farhad OSTOVAN.转速对6061-T6铝合金搅拌摩擦搭接焊接头力学性能的影响[J].中国有色金属学报（英文版）,2014(04):1004-1011. |
| [2] | R.S. Mishra;Z.Y. Ma.Friction stir welding and processing[J].Materials Science & Engineering, R. Reports: A Review Journal,20051/2(1/2):1-78. |
| [3] | B.ABNAR;M.KAZEMINEZHAD;A.H.KOKABI.热输入对搅拌摩擦焊AA3003-H18板材显微组织和力学性能的影响[J].中国有色金属学报（英文版）,2015(7):2147-2155. |
| [4] | S.RAJAKUMAR;C.MURALIDHARAN;V.BALASUBRAMANIAN.Establishing empirical relationships to predict grain size and tensile strength of friction stir welded AA 6061-T6 aluminium alloy joints[J].中国有色金属学报（英文版）,2010(10):1863-1872. |
| [5] | Hrishikesh DAS;Debayan CHAKRABORTY;Tapan KUMAR PAL.搅拌摩擦对接焊6061铝合金的高周疲劳行为[J].中国有色金属学报（英文版）,2014(03):648-656. |
| [6] | M. Alizadeh-Sh;F. Falsafi;M. Masoumi.Laser spot welding of AISI 304L: metallurgical and mechanical properties[J].Ironmaking & Steelmaking: Products and applications,20143(3):161-165. |
| [7] | Liu HJ;Chen YC;Feng JC.Effect of heat treatment on tensile properties of friction stir welded joints of 2219-T6 aluminium alloy[J].Materials Science and Technology: MST: A publication of the Institute of Metals,20062(2):237-241. |
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