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富铈合金改性镍基钎料钎焊金刚石钻头的性能研究

耿育科 罗卫东 郑炜 王驰 段端志

耿育科, 罗卫东, 郑炜, 王驰, 段端志. 富铈合金改性镍基钎料钎焊金刚石钻头的性能研究[J]. 机械科学与技术, 2022, 41(10): 1585-1589. doi: 10.13433/j.cnki.1003-8728.20200468
引用本文: 耿育科, 罗卫东, 郑炜, 王驰, 段端志. 富铈合金改性镍基钎料钎焊金刚石钻头的性能研究[J]. 机械科学与技术, 2022, 41(10): 1585-1589. doi: 10.13433/j.cnki.1003-8728.20200468
GENG Yuke, LUO Weidong, ZHENG Wei, WANG Chi, DUAN Duanzhi. Study on Performance of Brazed Diamond Drill Bits with Ce-rich Modified Ni-Cr Brazing Alloy[J]. Mechanical Science and Technology for Aerospace Engineering, 2022, 41(10): 1585-1589. doi: 10.13433/j.cnki.1003-8728.20200468
Citation: GENG Yuke, LUO Weidong, ZHENG Wei, WANG Chi, DUAN Duanzhi. Study on Performance of Brazed Diamond Drill Bits with Ce-rich Modified Ni-Cr Brazing Alloy[J]. Mechanical Science and Technology for Aerospace Engineering, 2022, 41(10): 1585-1589. doi: 10.13433/j.cnki.1003-8728.20200468

富铈合金改性镍基钎料钎焊金刚石钻头的性能研究

doi: 10.13433/j.cnki.1003-8728.20200468
基金项目: 

国家自然科学基金项目 52005397

中国博士后科学基金项目 2019M653589

江西省自然科学基金项目 20171BAB216032

详细信息
    作者简介:

    耿育科(1982-), 高级工程师, 硕士, 研究方向为飞机制造, 525341872@qq.com

    通讯作者:

    郑炜, 高级工程师, 硕士, q18701695@163.com

  • 中图分类号: TG74;TG58

Study on Performance of Brazed Diamond Drill Bits with Ce-rich Modified Ni-Cr Brazing Alloy

  • 摘要: Ni-Cr合金钎料对金刚石磨料会造成热损伤,影响了钎焊金刚石钻头加工性能的进一步提高。提出了Ni-Cr合金和富Ce合金复合钎料制备新型钎焊金刚石钻头和试样,开展了3种钎焊钻头钻削玻化砖的加工性能实验研究,利用扫描电镜分析了3种钎焊金刚石试样表面微观形貌和钎焊钻头的磨损形貌。结果表明:采用复合钎料制备的钎焊金刚石试样,金刚石磨料表面蚀坑较少,金刚石磨料表面或附近微裂纹较少,表面形貌优于Ni-Cr合金钎料钎焊金刚石试样;与Ni-Cr合金钎焊金刚石相比,富Ce合金添加量为5%和10%的复合钎料钎焊金刚石残余应力分别减少9.7%和16.1%;与Ni-Cr合金钎料钎焊金刚石钻头相比,采用富Ce合金添加量为5%的复合钎料制备的钎焊金刚石钻头其使用寿命增加60%,加工效率提高30.7%,磨损形式主要为微观破碎和宏观破碎,具有最优的加工性能和磨损形貌;富Ce合金能降低Ni-Cr合金对金刚石造成的热损伤。
  • 图  1  钎焊金刚石钻头

    图  2  Ni-Cr合金钎料钎焊金刚石试样

    图  3  1号Ni-Cr复合钎料钎焊金刚石试样

    图  4  2号Ni-Cr复合钎料钎焊金刚石试样

    图  5  钎焊金刚石残余应力测试示意图

    图  6  钎焊金刚石残余应力

    图  7  3种钎焊金刚石钻头的加工性能

    图  8  Ni-Cr钎料钎焊金刚石钻头磨损形貌

    图  9  1号复合钎料钎焊金刚石钻头磨损形貌

    图  10  2号复合钎料钎焊金刚石钻头磨损形貌

    表  1  两种Ni-Cr合金复合钎料组分

    复合钎料 Ni-Cr合金 富Ce合金
    1号 95 5
    2号 90 10
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-09-19
  • 刊出日期:  2022-10-25

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