铝-铜连续驱动摩擦焊接接头的组织与性能
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摘要
采用C320型连续驱动摩擦焊机,在主轴转速500 r/min,摩擦时间7 s,顶锻保压时间6 s条件下,实现了Ф25 mm铜棒材和Ф28 mm铝棒材的连续驱动摩擦焊接,得到了铝-铜双金属试样。用光学显微镜、显微硬度计、电子万能实验机和电导仪等研究了铝-铜连续驱动摩擦焊接接头的组织与性能。结果表明,焊接结合面连接良好,无焊接缺陷;焊缝区的拉伸、压缩和弯曲变形性能好,焊接接头的显微硬度和结合强度高,导电性能良好。
The continuous drive friction welding of Ф25 mm copper bar and Ф28 mm aluminum bar was realized by using C320 continuous drive friction welding machine under the conditions of spindle speed of 500 r/min,friction time of 7 s and forging pressure holding time of6 s. Aluminum-copper bimetallic samples were obtained. The microstructure and properties of welded joints of the Al-Cu continuous drive friction welding were studied by means of optical microscope,microhardness tester,electronic universal tester and conductometer. The results show that the welded joints are well connected without welding defects,the tensile,compression and bending deformation properties of the weld seam are good,the microhardness and bonding strength of the welded joints are high,and the electrical conductivity of the welded joints is good.
The continuous drive friction welding of Ф25 mm copper bar and Ф28 mm aluminum bar was realized by using C320 continuous drive friction welding machine under the conditions of spindle speed of 500 r/min,friction time of 7 s and forging pressure holding time of6 s. Aluminum-copper bimetallic samples were obtained. The microstructure and properties of welded joints of the Al-Cu continuous drive friction welding were studied by means of optical microscope,microhardness tester,electronic universal tester and conductometer. The results show that the welded joints are well connected without welding defects,the tensile,compression and bending deformation properties of the weld seam are good,the microhardness and bonding strength of the welded joints are high,and the electrical conductivity of the welded joints is good.
引文
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[15] 季亚娟,刘燕冰,张田仓,等.TC4/TC17线性摩擦焊接头组织及力学性能[J].焊接学报,2012,33(10):109-112.JI Ya-juan,LIU Yan-bing,ZHANG Tian-cang,et al. Structure and mechanical properties of TC4/TC17 linear friction welding joint[J].Ransactions of the China Welding Institution,2012,33(10):109-112.
[16] 刘大海,黎俊初,熊洪淼,等.2A12 铝合金筋板件搅拌摩擦焊工艺及焊后时效成形[J].材料热处理学报,2013,34(2):126-132.LIU Da-hai,LI Jun-chu,XIONG Hong-miao,et al.Friction stir welding of 2A12 aluminum rib-web parts and creep age forming after welding[J].Transactions of Materials and Heat Treatment,2013,34(2):126-132.
[2] Mehta K P,Badheka V J.Areview on dissimilar friction stir welding of copper to aluminum:process,properties and variants[J].Materials and Manufacturing Processes,2015,31(3):233-254.
[3] Xue P,Xiao B L,Ni D R,et al.Enhanced mechanical propertiesof friction stir welded dissimilar Al-Cu joint by intermetallic compounds[J].Materials Science and Engineering A,2010,527(21):5723-5727.
[4] 吴铭方,司乃潮,王敬,等.铁/铝扩散偶界面反应层生长机理分析[J].焊接学报,2011,32(5):29-32.WU Ming-fang,SI Nai-chao,WANG Jing,et al.Study on the growth mechanism of the interface reaction layer of Fe/Al diffusion couple[J].Transactions of the China Welding Institution,2011,32(5):29-32.
[5] 冯健,韩靖,张雪梅,等.7A04铝合金/304不锈钢连续驱动摩擦焊及焊后热处理[J].焊接学报,2018,39(8):11-17.FENG Jian,HAN Jing,ZHANG Xue-mei,et al.7A04 aluminum alloy/304 stainless steel continuous drive friction welding and post-weld heat treatment[J].Transactions of the China Welding Institution,2018,39(8):11-17.
[6] 杜岩峰,白景彬,田志杰,等. 2219 铝合金搅拌摩擦焊温度场的三维实体耦合数值模拟[J].焊接学报,2014,35(8):57-70.DU Yan-feng,BAI Jing-bin,TIAN Zhi-jie,et al. Investigation onthree-dimensional real coupling numerical simulation of temperature field of friction stir welding of 2219 aluminum alloy[J].Transactions of the China Welding Institution,2014,35(8):57-70.
[7] Chang C I,Lee C J,Huang J C.Relationship between grain size and Zener-Holloman parameter during friction stir processing in AZ31 Mgalloys[J].Scripta Materialia,2004,51(6):509-514
[8] Waldron D J,Roberts R W.Friction stir welding-a revolutionary new joining method[C]//Aerospace Automated Fastening Conference and Exposition,Long Beach,California,1998(9):15-17.
[9] Dawes C J.Introduction to friction stir welding and its development[J].Welding and Metal Fabrication,1995,63(1):13-15.
[10] 罗传红,彭卫平,张建强,等.焊后热处理对2219-T6铝合金搅拌摩擦焊接头力学性能的影响[J].材料热处理学报,2015,36(3):35-39.LUO Chuan-hong,PENG Wei-ping,ZHANG Jian-qiang,et al. Effects of post-weld heat treatment on the mechanical properties offriction welding of 2219-T6 aluminum alloy[J].Transactions of Materials and Heat Treatment,2015,36(3):35-39.
[11] 张秋征,宫文彪,刘杰.6005A-T6 铝合金厚板单面与双面搅拌摩擦焊的性能比较[J].材料热处理学报,2014,35(6):75-79.ZHANG Qiu-zheng,GONG Wen-biao,LIU Jie.6005A-T6 aluminum alloy plate single-side and double-sided agitation friction welding performance comparison[J].Transactions of Materials and Heat Treatment,2014,35(6):75-79.
[12] Huang Y M,Fan P L,Lin C H.Experimental study on friction stir welding of copper metals[J].Journal of Materials Processing Technology,2010,210(12):1667-1672.
[13] Thomas W M,Wiesner C S,Marks D J,et al. Conventional and bobbin friction stir welding of 12% chromium alloy steel using composite refractory tool materials[J].Science and Technology of Welding and Joining,2009,14(3):247-253.
[14] 黎俊初,周德生,刘大海,等. 2A12 铝合金筋板件 T 型搅拌摩擦焊工艺及焊后热处理[J].材料科学与工艺,2011,19(2):80-85.LI Jun-chu,ZHOU De-sheng,LIU Da-hai,et al.Friction stir welding and successive heat treatment of T-shaped rib-web parts of 2A12 aluminum alloy[J].Materials Science and Technology,2011,19(2):80-85.
[15] 季亚娟,刘燕冰,张田仓,等.TC4/TC17线性摩擦焊接头组织及力学性能[J].焊接学报,2012,33(10):109-112.JI Ya-juan,LIU Yan-bing,ZHANG Tian-cang,et al. Structure and mechanical properties of TC4/TC17 linear friction welding joint[J].Ransactions of the China Welding Institution,2012,33(10):109-112.
[16] 刘大海,黎俊初,熊洪淼,等.2A12 铝合金筋板件搅拌摩擦焊工艺及焊后时效成形[J].材料热处理学报,2013,34(2):126-132.LIU Da-hai,LI Jun-chu,XIONG Hong-miao,et al.Friction stir welding of 2A12 aluminum rib-web parts and creep age forming after welding[J].Transactions of Materials and Heat Treatment,2013,34(2):126-132.