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铜/钢复合接头旁路热丝等离子弧增材特性分析

苗玉刚, 李春旺, 赵慧慧, 邹俊攀, 张鹏

苗玉刚, 李春旺, 赵慧慧, 邹俊攀, 张鹏. 铜/钢复合接头旁路热丝等离子弧增材特性分析[J]. 焊接学报, 2019, 40(5): 95-99. DOI: 10.12073/j.hjxb.2019400134
引用本文: 苗玉刚, 李春旺, 赵慧慧, 邹俊攀, 张鹏. 铜/钢复合接头旁路热丝等离子弧增材特性分析[J]. 焊接学报, 2019, 40(5): 95-99. DOI: 10.12073/j.hjxb.2019400134
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MIAO Yugang, LI Chunwang, ZHAO Huihui, ZOU Junpan, ZHANG Peng. Characteristic analysis of copper/steel composite joint bypass-current wire-heating PAW on additive manufacturing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(5): 95-99. DOI: 10.12073/j.hjxb.2019400134
Citation: MIAO Yugang, LI Chunwang, ZHAO Huihui, ZOU Junpan, ZHANG Peng. Characteristic analysis of copper/steel composite joint bypass-current wire-heating PAW on additive manufacturing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(5): 95-99. DOI: 10.12073/j.hjxb.2019400134
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铜/钢复合接头旁路热丝等离子弧增材特性分析

  • 1.

    哈尔滨工程大学, 哈尔滨 150001

  • 2.

    上海航天设备制造总厂, 上海 200245

  • 3.

    比亚迪汽车工业有限公司, 深圳 518118

基金项目: 国防基础科研资助项目（KY10100190023）

Characteristic analysis of copper/steel composite joint bypass-current wire-heating PAW on additive manufacturing

  • 1.

    Harbin Engineering University, Harbin 150001, China

  • 2.

    Shanghai Aerospace Equipments Manufacturer, Shanghai 200245, China

  • 3.

    BYD Automobile Industry Co., Ltd., Shenzhen 518118, China

摘要

    摘要
  • 摘要: 以旁路热丝等离子弧焊接方法为技术手段，选择304不锈钢和S201紫铜焊丝为增材材料，开展铜/钢复合接头电弧增材试验，研究增材顺序对异种金属增材成形的影响，对铜/钢复合接头的界面微观组织进行分析，并测试铜/钢复合接头的力学性能. 结果表明，采用先铜后钢的增材顺序，可有效防止铜/钢增材时的熔池塌陷问题，获得成形良好的铜/钢增材接头；由于泛铁现象的存在，铜/钢界面处的硬度和力学性能显著提高，复合接头的抗拉强度为256.8 MPa，断裂发生在铜侧，其断面收缩率为52.8%，断后伸长率为15.68%，断裂形式为韧性断裂.
    Abstract: Wire arc additive manufacture on copper/steel composite joint test was carried out by using the technology of bypass-current wire-heating Plasma Arc Welding (PAW) on additive manufacturing. 304 stainless steel and S201 copper wire selected as deposition metal. The effect of surfacing sequence on forming was analyzed, and the interface microstructure and mechanical property of the copper/steel composite joint were also investigated. The results show that under the sequence of addition copper and steel, the collapse of the molten pool was effectively prevented and a well-formed copper/steel additive joint was obtained. The hardness and mechanical properties at the copper/steel interface were significantly improved due to the effect of Fe solid solution. The average tensile strength of the composite joint was 256.8 MPa. The fracture occurred on the copper side and the shrinkage of the section was 52.8%, and the elongation was 15.68% and the fracture form was of ductile fracture.
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    • 参考文献(10)
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出版历程
  • 收稿日期:  2018-10-06

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