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TC4/T2连续驱动摩擦焊工艺及接头组织与性能

李敬勇, 倪梁华, 金鑫

李敬勇, 倪梁华, 金鑫. TC4/T2连续驱动摩擦焊工艺及接头组织与性能[J]. 焊接学报, 2016, 37(9): 115-118.
引用本文: 李敬勇, 倪梁华, 金鑫. TC4/T2连续驱动摩擦焊工艺及接头组织与性能[J]. 焊接学报, 2016, 37(9): 115-118.
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LI Jingyong, NI Lianghua, JIN Xin. Continuous drive friction welding procedures of TC4/T2 and microstructure and performance of dissimilar metal joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(9): 115-118.
Citation: LI Jingyong, NI Lianghua, JIN Xin. Continuous drive friction welding procedures of TC4/T2 and microstructure and performance of dissimilar metal joints[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(9): 115-118.
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TC4/T2连续驱动摩擦焊工艺及接头组织与性能

  • 江苏科技大学 先进焊接技术省级重点实验室, 镇江 212003

Continuous drive friction welding procedures of TC4/T2 and microstructure and performance of dissimilar metal joints

  • Advanced Welding Technology Provincial Key Laboratory, Jiangsu University of Science and Technology, Zhenjiang 212003, China

摘要

    摘要
  • 摘要: 采用连续驱动摩擦焊实现了TC4/T2异种金属之间的焊接. 结果表明，热物理性能差异显著的TC4和T2异种金属之间连续驱动摩擦焊，宜采用强规范工艺条件，即采用较大的焊接压力，较短的焊接时间；TC4/T2连续驱动摩擦焊头形成非对称飞边，摩擦压力过小，焊接热输入不足，难以形成规则的飞边形态；采用较短的I级摩擦焊接时间，可以形成紧密的TC4/T2冶金结合界面，并形成一定程度的机械咬合. TC4/T2连续驱动摩擦焊最佳工艺参数为：Ⅰ级加压、Ⅱ级加压和顶锻压力在试样表面产生的压强分别为1.4，1.8和2.1 MPa，Ⅰ级摩擦焊接时间为5 s. 采用最佳焊接工艺参数，TC4/T2连续驱动摩擦焊接头抗拉强度达到母材T2的96.7%.
    Abstract: The titanium alloy TC4 and pure copper T2 dissimilar metal welding was achieved by using continuous drive friction welding method. It is shown that the strong normal processing conditions, namely larger welding pressure, shorter welding time, should be adopted for continuous drive friction welding of TC4 and T2 dissimilar metals with significant thermal physical properties differences. Asymmetric flashes were formed during TC4/T2 continuous drive friction welding. With too little friction pressures, welding heat input is insufficient, and it is difficult to form regular flashes. Close TC4/T2 metallurgical bonding interfaces and a certain degree of mechanical occlusions were formed with shorter welding time of grade I. The optimum TC4/T2 continuous drive friction welding parameters are the pressures of 1.4 MPa, 1.8 MPa and 2.1 MPa are respectively emerged on the sample surfaces during grade I, grade Ⅱ and upsetting stage of continuous drive friction welding, and friction welding time of 5 s is adopted in grade I. With the optimum welding parameters, the tensile strength of the TC4/T2 continuous drive friction welding joint is 96.7% of the base metal T2.
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  • 收稿日期:  2015-05-26

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