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局部感应钎焊锯片基体的热变形分析

侯超鹏 李奇林 丁凯 雷卫宁 任维彬 韩锦锦

侯超鹏, 李奇林, 丁凯, 雷卫宁, 任维彬, 韩锦锦. 局部感应钎焊锯片基体的热变形分析[J]. 金刚石与磨料磨具工程, 2023, 43(2): 241-249. doi: 10.13394/j.cnki.jgszz.2022.0097
引用本文: 侯超鹏, 李奇林, 丁凯, 雷卫宁, 任维彬, 韩锦锦. 局部感应钎焊锯片基体的热变形分析[J]. 金刚石与磨料磨具工程, 2023, 43(2): 241-249. doi: 10.13394/j.cnki.jgszz.2022.0097
HOU Chaopeng, LI Qilin, DING Kai, LEI Weining, REN Weibin, HAN Jinjin. Analysis of thermal deformation of substrate of local induction brazed saw blade[J]. Diamond & Abrasives Engineering, 2023, 43(2): 241-249. doi: 10.13394/j.cnki.jgszz.2022.0097
Citation: HOU Chaopeng, LI Qilin, DING Kai, LEI Weining, REN Weibin, HAN Jinjin. Analysis of thermal deformation of substrate of local induction brazed saw blade[J]. Diamond & Abrasives Engineering, 2023, 43(2): 241-249. doi: 10.13394/j.cnki.jgszz.2022.0097

局部感应钎焊锯片基体的热变形分析

doi: 10.13394/j.cnki.jgszz.2022.0097
基金项目: 国家自然科学基金(51905234);江苏省高校自然科学研究重大项目(22KJA460004);江苏理工学院研究生实践创新计划项目(XSJCX21_19)。
详细信息
    通讯作者:

    李奇林,男,1984年生,副教授、博士。主要研究方向:超硬磨料感应钎焊技术。E-mail:liqilin@jsut.edu.cn

  • 中图分类号: TG74; TQ164

Analysis of thermal deformation of substrate of local induction brazed saw blade

  • 摘要:

    针对钎焊锯片基体在高温条件下的热变形问题,在有限元软件中对局部感应钎焊锯片基体的温度、组织以及应力应变场进行分析,研究影响锯片基体变形的因素。结果显示:锯片基体发生的相变主要分布在钎焊工作面上,冷却至室温后主要得到铁素体、珠光体、贝氏体3种组织。当热源的扫描速度增大,基体的变形量以及残余应力都随之增大。当扫描速度从0.25 mm/s增至2.00 mm/s时,相变层厚度从5.8 mm降至4.7 mm,最大变形量从0.41 mm增至0.82 mm,且残余应力从482 MPa增至667 MPa。试验与仿真结果基本一致。

     

  • 图  1  局部感应钎焊过程示意图和照片

    Figure  1.  Schematic diagram and photo of local induction brazing process

    图  2  热源的高斯分布

    Figure  2.  Gaussian distribution of the heat source

    图  3  锯片尺寸示意图

    Figure  3.  Schematic diagram of saw blade size

    图  4  网格划分

    Figure  4.  Meshing

    图  5  热源功率与钎焊温度的关系

    Figure  5.  Relationship between heat source powers and brazing temperatures

    图  6  瞬时温度场云图

    Figure  6.  Instantaneous temperature field nephogram

    图  7  节点位置示意图

    Figure  7.  Schematic diagram of node location

    图  8  温度时间曲线

    Figure  8.  Temperature time curves

    图  9  感应钎焊时组织体积分数及温度随时间的变化

    Figure  9.  Change of microstructure volume fraction and temperature with time in induction brazing

    图  10  各扫描速度下组织体积分数的变化

    Figure  10.  Changes of tissue proportions at various scanning speeds

    图  11  组织场云图

    Figure  11.  Organization field nephogram

    图  12  各扫描速度下组织的相变层厚度变化

    Figure  12.  Thickness change of phase change layer of microstructure at various scanning speeds

    图  13  工作面附近的组织场形貌

    Figure  13.  Morphology of the organization field near the working face

    图  14  路径示意图

    Figure  14.  Schematic diagram of path

    图  15  路径上的变形量及残余应力变化

    Figure  15.  Deformation and residual stress changes on the path

    图  16  变形量随温度的变化

    Figure  16.  Variation of deformation amount with temperature

    图  17  残余应力随温度的变化

    Figure  17.  Variation of residual stress with temperature

    图  18  三坐标测量示意图

    Figure  18.  Schematic diagram of three-coordinate measurement

    图  19  试验值与仿真数据对比

    Figure  19.  Comparison of experimental values and simulation data

    表  1  局部感应钎焊工艺参数

    Table  1.   Local induction brazing process parameters

    工艺参数取值
    热源扫描速度 v / (mm·s−1)0.25,0.50,1.00,2.00
    热源功率 Q / W67.4~370.0
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-06-24
  • 修回日期:  2022-12-04
  • 录用日期:  2023-12-07
  • 刊出日期:  2023-04-20

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