高级检索

2219铝合金TIG填丝堆焊成形薄壁试样组织特征

柏久阳, 范成磊, 杨雨晨, 徐艳利, 李瑞, 林三宝, 王计辉

柏久阳, 范成磊, 杨雨晨, 徐艳利, 李瑞, 林三宝, 王计辉. 2219铝合金TIG填丝堆焊成形薄壁试样组织特征[J]. 焊接学报, 2016, 37(6): 124-128.
引用本文: 柏久阳, 范成磊, 杨雨晨, 徐艳利, 李瑞, 林三宝, 王计辉. 2219铝合金TIG填丝堆焊成形薄壁试样组织特征[J]. 焊接学报, 2016, 37(6): 124-128.
shu
BAI Jiuyang, FAN Chenglei, YANG Yuchen, XU Yanli, LI Rui, LIN Sanbao, WANG Jihui. Microstructures of 2219-Al thin-walled parts produced by shaped metal deposition[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(6): 124-128.
Citation: BAI Jiuyang, FAN Chenglei, YANG Yuchen, XU Yanli, LI Rui, LIN Sanbao, WANG Jihui. Microstructures of 2219-Al thin-walled parts produced by shaped metal deposition[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(6): 124-128.
shu

2219铝合金TIG填丝堆焊成形薄壁试样组织特征

  • 1.

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

  • 2.

    北京航天新风机械设备有限公司 北京 100074

Microstructures of 2219-Al thin-walled parts produced by shaped metal deposition

  • 1.

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

  • 2.

    Beijing Aerospace Fresh Air Machinery and Equipment Co., Ltd, Beijing 100000, China

摘要

    摘要
  • 摘要: 进行了2219铝合金多层单道TIG填丝堆焊成形试验，并观察了堆焊成形试样的宏观形貌与微观组织特征。结果表明，堆焊成形试样整体冶金结合良好、无明显的未熔合现象。在试样的中下部区域有平行条纹出现，条纹间距大约相等，并且条纹区域与层间位置大致重合。顶部区域组织呈树枝状，且Cu元素偏析严重。中下部区域组织形态多样，包括条纹组织、等轴组织、柱状组织和平面组织，各类组织依次循环出现，同时Cu元素偏析明显改善。堆焊试样中存在一定量的孔隙缺陷―气孔和缩孔，两者尺寸介于10~80μm之间，集中出现在层间位置（条纹）。
    Abstract: A multi-layers single-pass thin-walled part was produced by shaped metal deposition and the macro-morphologies and microstructures were observed. Results show that the whole part exhibits a good metallurgical junction and fusion phenomenon. On a macro-level, many parallel stripes occur in the middle and bottom regions. The parallel stripes are equidistant distributed and coincident with the layers-interfaces. In top region, the dendritic grains dominate and the segregation of Cu-element is serious. In middle and bottom regions, the microstructures are varied, including equiaxed grains, columnar grains and planer grains. The grains arrange according a list-regular and the segregation of Cu-element is alleviated compared with top region. There are a lot of porosities and shrinkages in the part, whose sizes vary from 10 μm to 80 μm. Moreover, the porosities and shrinkages are more likely to occur in the interfaces.
    • HTML全文
    • 参考文献(9)
  • [1] Baufeld B, Van der Biest O. Mechanical properties of Ti-6Al-4V specimens produced by shaped metal deposition[J]. Science and Technology of Advanced Materials, 2009(10): 1536-1542.
    [2] Tabernero I, Lamikiz A, Martínez S, et al. Evaluation of the mechanical properties of Inconel 718 components built by laser cladding[J]. International Journal of Machine Tools and Manufacture, 2011, 51(6): 465-470.
    [3] Skiba T, Baufeld B, Van der Biest O. Shaped metal deposition of 300 M steel[J]. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2011, 225(6): 831-839.
    [4] Wang H, Kovacevic R. Variable polarity GTAW in rapid prototyping of aluminumparts[C]//Proceedings of the 11th Annual Solid Freeform Fabrication Symposium, Austin, TX. 2000: 369-376.
    [5] 杜乃成. 弧焊机器人金属快速成形研究[D]. 天津: 天津大学, 2009.
    [6] 刘望兰. 铝合金TIG电弧快速成形工艺的研究[D]. 天津: 天津大学, 2007.
    [7] 刘一搏, 孙清洁, 姜云禄, 等. 基于冷金属过渡技术快速成形工艺[J]. 焊接学报, 2014, 35(7): 1-4. Liu Yibao, Sun Qingjie, Jiang Yunlu, et al. Rapid prototyping process based on cold metal transfer arc welding technology[J]. Transactions of China Welding Institution, 2014, 35(7): 1-4.
    [8] 柏久阳, 王计辉, 林三宝, 等. 铝合金电弧增材制造焊道宽度尺寸预测[J]. 焊接学报, 2015, 36(9): 87-90. Bai Jiuyang, Wang Jihui, Lin Sanbao, et al. Width prediction of deposited aluminium alloy manufactured by shaped metal deposition with TIG[J]. Transactions of the China Welding Institution 2015, 36(9): 87-90.
    [9] 柏久阳, 范成磊, 林三宝, 等. 基板散热作用对电弧堆焊成形中熔宽调控的影响[J]. 焊接学报, 2016, 37(3): 115-119. Bai Jiuyang, Fan Chenglei, Lin Sanbao, et al. Effects of base-plate's heat sink on the control strategies of weld width during GTA-additive manufacturing[J]. Transactions of the China Welding Institution, 2016, 37(3): 115-119.
    • 相关文章
    • 施引文献
    • 资源附件(0)
计量
  • 文章访问数:  689
  • HTML全文浏览量:  32
  • PDF下载量:  276
  • 被引次数: 0
出版历程
  • 收稿日期:  2014-11-16

目录

摘要
HTML全文
    参考文献(9)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回

    网站版权 © 焊接杂志社焊接学报编辑部电话：0451-86323218地址：哈尔滨市松北区创新路2077号

    本系统由 北京仁和汇智信息技术有限公司 开发  百度统计