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50 mm厚板TC4及TA17钛合金真空电子束焊接工艺研究

李大东 白威 邓健 陈容 耿乃涛

李大东, 白威, 邓健, 陈容, 耿乃涛. 50 mm厚板TC4及TA17钛合金真空电子束焊接工艺研究[J]. 钢铁钒钛, 2022, 43(3): 40-46. doi: 10.7513/j.issn.1004-7638.2022.03.007
引用本文: 李大东, 白威, 邓健, 陈容, 耿乃涛. 50 mm厚板TC4及TA17钛合金真空电子束焊接工艺研究[J]. 钢铁钒钛, 2022, 43(3): 40-46. doi: 10.7513/j.issn.1004-7638.2022.03.007
Li Dadong, Bai Wei, Deng Jian, Chen Rong, Geng Naitao. Study on vacuum electron beam welding process of 50 mm thick plate TC4 and TA17 titanium alloys[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(3): 40-46. doi: 10.7513/j.issn.1004-7638.2022.03.007
Citation: Li Dadong, Bai Wei, Deng Jian, Chen Rong, Geng Naitao. Study on vacuum electron beam welding process of 50 mm thick plate TC4 and TA17 titanium alloys[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(3): 40-46. doi: 10.7513/j.issn.1004-7638.2022.03.007

50 mm厚板TC4及TA17钛合金真空电子束焊接工艺研究

doi: 10.7513/j.issn.1004-7638.2022.03.007
详细信息
    作者简介:

    李大东(1963—),男,四川峨眉山人,教授级高工,研究方向:钛材真空电子束焊接工艺,E-mail: pzhpyyldd@163.com

  • 中图分类号: TG456.3,TF823

Study on vacuum electron beam welding process of 50 mm thick plate TC4 and TA17 titanium alloys

  • 摘要: 采用JMATPRO热力学软件,在分析TC4和TA17钛合金的密度、比热和导热率等特性的基础上,开展了厚度50 mm的TC4和TA17钛合金真空电子束焊接试验,设计了高压和中压加速电压,不同焊接束流和焊接速度的参数变化,研究了焊接工艺参数对焊缝熔宽和熔深及焊缝成形系数的影响作用。试验结果表明,相同焊接工艺参数条件下TC4钛合金的熔深和焊缝成形系数较TA17高,焊接束流对熔深和焊缝成形系数影响能力最为突出,加速电压150 kV的高压更适合于大厚板钛合金的真空电子束焊接。
  • 图  1  焊缝垫板

    Figure  1.  Weld backing plate

    图  2  TC4和TA17钛合金热物理参数曲线

    Figure  2.  Thermophysical parameter curves of TC4 and TA17 titanium alloys

    图  3  TC4及TA17钛合金焊缝外观形貌

    Figure  3.  Appearance of TC4 and TA17 titanium alloys weld

    图  4  TC4焊缝截面宏观形貌

    Figure  4.  Macroscopic morphology of TC4 weld section

    图  5  TA17焊缝截面宏观形貌

    Figure  5.  Macroscopic morphology of TA17 weld section

    表  1  TC4和TA17钛合金化学成分分析结果

    Table  1.   Chemical compositions of TC4 and TA17 titanium alloys %

    牌号AlVCFeOHNTi
    TC46.264.020.0160.1100.1200.00060.0066余量
    TA173.902.570.0120.0260.0700.00060.0060余量
    下载: 导出CSV

    表  2  25~1800 ℃温度区间内钛合金热物理参数对比

    Table  2.   Comparison of thermophysical parameters of titanium alloys in the temperature range of 25~1800 ℃

    材料温度/℃密度/(g·cm−3)比热/(J·g−1·℃−1)热导率/(W·m−1·℃−1)
    TC4254.420.555.75
    5004.360.6714.39
    10004.310.6624.21
    15004.220.7732.23
    16704.181.1434.96
    18003.990.9833.67
    TA17254.450.548.72
    5004.390.6614.92
    10004.340.6523.41
    15004.250.7630.68
    16704.211.2833.18
    18004.040.9732.22
    下载: 导出CSV

    表  3  TC4及TA17电子束焊接工艺参数及焊缝成形情况

    Table  3.   EBW process parameters and weld forming situation of TC4 and TA17

    试样
    编号
    加速电压/
    kV
    束流/
    mA
    上聚焦电流/
    mA
    下聚焦电流/
    mA
    焊接速度/
    (mm·min−1)
    热输入/
    (kJ·cm−1)
    焊件背面成形情况
    C11506040051015036.0试板背面未焊透
    A1
    C21507040051015042.0试板背面未焊透
    A2
    C31508040051015048.0垫板敲掉,垫板无匙孔
    A3
    C41508540051015051.0垫板与试板焊为一体,垫板无匙孔
    A4
    C111509040051015054.0垫板与试板焊为一体,垫板上有密集匙孔
    A11垫板与试板焊为一体,垫板上未出现匙孔
    C121509040051020040.5无垫板,试板焊漏长度95 mm
    A12无垫板,焊漏长度65 mm
    C131509040051020040.5垫板与试板焊为一体,垫板上有一个匙孔
    A13垫板与试板焊为一体,垫板上无匙孔
    C141509040051025032.4垫板与试板焊为一体,垫板无匙孔
    A14垫板敲掉,试板上有密集匙孔
    C211509040051030027.0垫板与试板焊为一体,无匙孔
    A21垫板脱离,试板后段密集匙孔
    C22859037033015030.6垫板取掉,试板背面未焊透
    A22
    C238512037033015040.8垫板取掉,试板背面未焊透
    A23
    C248514037033015047.6垫板与试板焊为一体,无匙孔
    A24
    C318515037033015051.0垫板与试板焊为一体,无匙孔
    A31
    C328516037033015054.4垫板与试板焊为一体,垫板上有少量匙孔
    A32垫板与试板焊为一体,垫板上有几个匙孔
    C338517037033015057.8垫板与试板焊为一体,垫板后端有密集匙孔
    A33垫板与试板焊为一体,垫板后端有几处匙孔
    下载: 导出CSV

    表  4  TC4和TA17电子束焊接不同焊接流速下的熔宽、熔深及焊缝系数

    Table  4.   Weld width, penetration and weld forming coefficient of TC4 and TA17 using EBW at different welding beam current

    材料加速电压
    /kV
    焊接速度/(mm·min−1焊接束流
    /mA
    熔宽
    /mm
    熔深
    /mm
    焊缝成形系数
    TC41501506026.2129.981.14
    7022.6138.271.69
    8027.9049.111.76
    8522.6052.902.34
    9023.4259.402.54
    851509017.4834.401.97
    12019.0844.802.35
    14020.4449.202.41
    15022.4254.402.43
    16021.7754.802.52
    17023.8761.702.58
    TA171501506026.1828.101.07
    7026.8034.401.28
    8026.8347.801.78
    8527.1453.01.95
    9025.6858.602.28
    851509018.4532.601.77
    12020.3044.102.17
    14023.6252.802.24
    15023.2056.982.46
    16023.3064.222.76
    17025.4863.042.47
    下载: 导出CSV

    表  5  TC4和TA17电子束焊接不同焊接速度下的熔宽、熔深及焊缝系数

    Table  5.   Weld width, penetration and weld forming coefficient of TC4 and TA17 using EBW at different welding speed

    材料加速电压
    /kV
    焊接束流
    /mA
    焊接速度/(mm·min−1熔宽
    /mm
    熔深
    /mm
    焊缝成形系数
    TC41509015023.4259.402.54
    20018.2958.903.22
    25015.3358.503.82
    30016.1450.03.10
    TA171509015025.6858.602.28
    20026.1855.702.13
    25018.1350.402.78
    30016.4049.603.02
    下载: 导出CSV
  • [1] Zhao Yongqing. Current situation and development trend of titanium alloys[J]. Materials China, 2010,29(5):1−8. (赵永庆. 国内外钛合金研究的发展现状及趋势[J]. 中国材料进展, 2010,29(5):1−8.

    Zhao Yongqing. Current situation and development trend of titanium alloys [J]. Materials China, 2010, 29(5): 1-8.
    [2] Wang Yating, Lin Naiming, Tang Bin. Development of thermal oxidation of titanium and titanium alloys[J]. Corrosion & Protection, 2014,35(10):965−970. (王娅婷, 林乃明, 唐宾. 钛及钛合金热氧化工艺的研究现状[J]. 腐蚀与防护, 2014,35(10):965−970.

    Wang Yating, Lin Naiming, Tang Bin. Development of thermal oxidation of titanium and titanium alloys [J]. Corrosion & Protection, 2014, 35(10): 965-970.
    [3] Zhang Binggang, Wu Lin, Feng Jicai. Development status of EBW technology both at home and abroad[J]. Welding & Joining, 2004,(2):5−8. (张秉刚, 吴林, 冯吉才. 国内外电子束焊接技术研究现状[J]. 焊接, 2004,(2):5−8. doi: 10.3969/j.issn.1001-1382.2004.02.001

    Zhang Binggang, Wu Lin, Feng Jicai. Development status of EBW technology both at home and abroad [J]. Welding & Joining, 2004(2): 5-8. doi: 10.3969/j.issn.1001-1382.2004.02.001
    [4] Li Yajiang, Liu Kun. Application and advanced bonding technology of titanium alloy in aviation industry[J]. Aeronautical Manufacturing Technology, 2015,(16):34−37. (李亚江, 刘坤. 钛合金在航空领域的应用及其先进连接技术[J]. 航空制造技术, 2015,(16):34−37.

    Li Yajiang, Liu Kun. Application and advanced bonding technology of titanium alloy in aviation industry [J]. Aeronautical Manufacturing Technology, 2015, (16): 34-37.
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出版历程
  • 收稿日期:  2021-11-23
  • 刊出日期:  2022-06-30

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