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TC4钛合金压力容器电子束焊接模拟分析

张永和, 何俊, 翟大鹏, 张秉刚

张永和, 何俊, 翟大鹏, 张秉刚. TC4钛合金压力容器电子束焊接模拟分析[J]. 焊接学报, 2017, 38(5): 18-21,48. DOI: 10.12073/j.hjxb.20170504
引用本文: 张永和, 何俊, 翟大鹏, 张秉刚. TC4钛合金压力容器电子束焊接模拟分析[J]. 焊接学报, 2017, 38(5): 18-21,48. DOI: 10.12073/j.hjxb.20170504
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ZHANG Yonghe, HE Jun, ZHAI Dapeng, ZHANG Binggang. Study on temperature field of electron beam welding of TC4 titanium alloy pressure vessel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 18-21,48. DOI: 10.12073/j.hjxb.20170504
Citation: ZHANG Yonghe, HE Jun, ZHAI Dapeng, ZHANG Binggang. Study on temperature field of electron beam welding of TC4 titanium alloy pressure vessel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2017, 38(5): 18-21,48. DOI: 10.12073/j.hjxb.20170504
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TC4钛合金压力容器电子束焊接模拟分析

  • 1.

    兰州空间技术物理研究所 真空技术与物理重点实验室, 兰州 730000

  • 2.

    哈尔滨工业大学 先进焊接与连接国家重点实验室, 哈尔滨 150001

Study on temperature field of electron beam welding of TC4 titanium alloy pressure vessel

  • 1.

    Science and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Physics, Lanzhou 730000, China

  • 2.

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

摘要

    摘要
  • 摘要: 文中采用旋转高斯曲面体热源模型，对一定工艺条件下航天压力容器TC4钛合金试件的焊接过程进行了温度场分析，获得了温度场的分布特征及垂直焊缝方向的温度分布曲线.结果表明，利用该规格试件确定的焊接参数规范能够满足实际产品焊接的要求，热影响区温度梯度的分布情况为内部装置的保护提供了依据；并通过对"匙孔"的演变过程和不同焊接参数下的特征尺寸进行模拟分析，获得了典型关系曲线，工艺试验与模拟结果吻合较好，为获得高质量要求的焊缝提供了参考.
    Abstract: In order to meet the requirement of welding quality of space pressure vessel and the protection requirements of special equipment inside, it is necessary to determine the welding specification by using the specimen before welding. The temperature field of TC4 titanium alloy pressure vessel specimen under certain process conditions was studied by using the rotating Gaussian surface heat source model. The distribution characteristics of temperature field and the thermal cycle curve of welding process were obtained, and it was proved that by using the distribution of the temperature gradient in the heat affected zone of the specimen provides the basis for the protection of the internal device. By simulating the evolution of the "key hole" and the characteristic dimensions at different welding speed, the welding parameters are analyzed and determined, it can provide a reference for obtaining high-quality requirement of the welding seam.
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    • 参考文献(8)
  • [1] 王厚勤, 张秉刚, 王 延, 等. 60 mm厚TC4钛合金电子束焊接头疲劳性能[J]. 焊接学报, 2015, 36(5): 13-17. Wang Houqin, Zhang Binggang, Wang Ting, et al. Fatigue property of TC4 joint with a thickness of 60 mm by electron beam welding[J]. Transactions of the China Welding Institution, 2015, 36(5): 13-17.
    [2] Balasubramanian T S, Balasubramanian V, Muthu Manickam M A. Influence of welding processes on microstructure, tensile and impact properties of Ti-6Al-4V alloy joints[J]. Transactions of Nonferrous Metals Society of China, 2011(21): 1253-1262.
    [3] 罗 怡, 许惠斌, 李春天, 等. 真空电子束焊接热源建模及功率密度分析[J]. 焊接学报, 2010, 31(9): 73-76. Luo Yi, Xuhuibin, Li Chuntian, et al. Heat source modeling and power density analysis for vacuum electron beam welding[J]. Transactions of the China Welding Institution, 2010, 31(9): 73-76.
    [4] 陈彬斌, 庞盛永, 周建新, 等. TC4钛合金扫描电子束焊接温度场数值模拟[J]. 焊接学报, 2013, 34(7): 33-37. Chen Binbin, Pang Shengyong, Zhou Jianxin, et al. Numerical simulation of temperature field during scanning electron beam welding of TC4 titanium alloy[J]. Transactions of the China Welding Institution, 2013, 34(7): 33-37.
    [5] Guirao J, Rodrfguez E, Bay6n A, et al. Determination through the distortions analysis of the best welding sequence in longitudinal welds VATS electron beam welding FE simulation[J]. Fusion Engineering and Design, 2010, 85(5): 766-779.
    [6] 马正斌, 刘金合, 魏 雷, 等. 10 mm厚TC11钛合金电子束焊接熔池传热与流动行为研究[J]. 航空制造技术, 2012(16): 80-83. Ma Zhengbin, Liu Jinhe, Wei Lei, et al. Research on molten pool heat transfer and flow behavior of electron beam welding for 10mm thick TC11 titanium[J]. Aeronautical Manufacturing Technology, 2012(16): 80-83.
    [7] Zhang B G, Shi M X, Chen G Q, et al. Microstructure and defect of titanium alloy electron beam deep penetration welded joint[J]. Transactions of Nonferrous Metals Society of China, 2012(22): 2633-2637.
    [8] 刘成财, 刘铖丹, 刘巍巍. 2219铝合金电子束焊接匙孔演变过程的数值模拟[J]. 焊接学报, 2016, 37(4): 115-118. Liu Chengcai, Liu Chengdan, Liu Weiwei. Numerical simulation on the keyhole of electron beam welding for 2219 aluminum alloy[J]. Transactions of the China Welding Institution, 2016, 37(4): 115-118.
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  • 收稿日期:  2016-11-13

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