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cBN-Fe磁性磨粒的制备工艺及性能

马雨寒 张宝瑞 周长乐 陈保池 王大庆 田鑫 丁云龙

马雨寒, 张宝瑞, 周长乐, 陈保池, 王大庆, 田鑫, 丁云龙. cBN-Fe磁性磨粒的制备工艺及性能[J]. 金刚石与磨料磨具工程, 2023, 43(4): 422-431. doi: 10.13394/j.cnki.jgszz.2022.0130
引用本文: 马雨寒, 张宝瑞, 周长乐, 陈保池, 王大庆, 田鑫, 丁云龙. cBN-Fe磁性磨粒的制备工艺及性能[J]. 金刚石与磨料磨具工程, 2023, 43(4): 422-431. doi: 10.13394/j.cnki.jgszz.2022.0130
MA Yuhan, ZHANG Baorui, ZHOU Changle, CHEN Baochi, WANG Daqing, TIAN Xin, DING Yunlong. Preparation process and performances of cBN-Fe magnetic abrasive particles[J]. Diamond & Abrasives Engineering, 2023, 43(4): 422-431. doi: 10.13394/j.cnki.jgszz.2022.0130
Citation: MA Yuhan, ZHANG Baorui, ZHOU Changle, CHEN Baochi, WANG Daqing, TIAN Xin, DING Yunlong. Preparation process and performances of cBN-Fe magnetic abrasive particles[J]. Diamond & Abrasives Engineering, 2023, 43(4): 422-431. doi: 10.13394/j.cnki.jgszz.2022.0130

cBN-Fe磁性磨粒的制备工艺及性能

doi: 10.13394/j.cnki.jgszz.2022.0130
基金项目: 辽宁省教育厅科学研究经费(2019LNQN01);辽宁省科技厅博士启动经费(2021-BS-241)。
详细信息
    作者简介:

    丁云龙,男,1988年生,博士、副教授。主要研究方向:精密加工与特种加工。E-mail:dylustl@163.com

  • 中图分类号: TG73; TG58; TQ164

Preparation process and performances of cBN-Fe magnetic abrasive particles

  • 摘要:

    针对现有烧结法制备的磁性磨粒中研磨相材料硬度较低,对硬度高、导磁性差的钛合金等工件的研磨效果差,且硬度最高的金刚石材料无法作为研磨相用烧结法来制备磁性磨粒的问题,以Fe粉为基体,cBN粉末为研磨相,烧结制备cBN-Fe磁性磨粒;以Ti-6A1-4V(TC4)板为研磨对象,用控制变量法探究烧结法制备的cBN-Fe磁性磨粒中烧结时间、升温速度、原料配比对其研磨性能的影响,确定其最佳的制备工艺参数;并以45#钢和202不锈钢为研磨工件,比较cBN-Fe与烧结法制备的Al2O3-Fe、SiC-Fe 3种磁性磨粒研磨前后工件的表面粗糙度、表面形貌,探究不同磁性磨粒的研磨性能和使用寿命。结果表明:当Fe粉与cBN粉的质量比为3∶1,烧结温度为1150 ℃,烧结时间为6 h,保温时间为2 h,升温速度为3.19 ℃/min时,制备的cBN-Fe磁性磨粒研磨性能最佳,优于烧结法制备的Al2O3-Fe、SiC-Fe磁性磨粒的,且其使用寿命分别是Al2O3-Fe磁性磨粒和SiC-Fe磁性磨粒的1.6倍和1.3倍。

     

  • 图  1  烧结法制备磁性磨粒流程图

    Figure  1.  Flow chart of preparation of magnetic abrasive particles by sintering

    图  2  磁粒研磨光整加工装置

    Figure  2.  Magnetic abrasive finishing device

    图  3  磁性磨粒不同体积占比示意图

    Figure  3.  Schematic diagram of different volume proportions of magnetic abrasive particles

    图  4  磁性磨粒产量与废料比例关系

    Figure  4.  Relationship between magnetic abrasive grain yield and waste ratio

    图  5  磁性磨粒的原子质量分数和能谱分析图

    Figure  5.  Atomic mass fraction and energy spectrum analysis of magnetic abrasive particles

    图  6  原料配比对工件表面粗糙度的影响

    Figure  6.  Effect of raw material ratios on surface roughness of workpiece

    图  7  研磨前后TC4的表面微观形貌

    Figure  7.  Surface micro morphology of TC4 before and after grinding

    图  8  不同烧结时间下烧结的坯体形貌

    Figure  8.  Morphologies of green bodies sintered at different sintering times

    图  9  加工时间对工件表面粗糙度的影响

    Figure  9.  Influence of machining time on surface roughness of workpiece

    图  10  研磨后TC4表面微观形貌

    Figure  10.  Surface micro morphology of TC4 after grinding

    图  11  磁性磨粒的磁化曲线

    Figure  11.  Magnetization curves of magnetic abrasive particles

    图  12  45#钢表面粗糙度随时间的变化

    Figure  12.  Variation of surface roughness of 45# steel with times

    图  13  45#钢研磨前后的表面微观形貌

    Figure  13.  Surface morphology of 45# steel before and after grinding

    图  14  磁性磨粒寿命对比分析

    Figure  14.  Comparative analysis of magnetic abrasive life

    表  1  试验条件

    Table  1.   Experimental condition

    参数取值
    SH-190水基研磨液体积 V / mL 5
    主轴转速 n1 / ( r·min−1) 1 500
    工件进给速度 vw / (mm·s−1) 1
    工件转速 n2 / ( r·min−1) 10
    加工间隙 d / mm 2
    下载: 导出CSV

    表  2  3种磁性磨粒制备参数

    Table  2.   Three preparation parameters of magnetic abrasive particles

    参数名称取值
    cBN-Fe质量比 R1 3∶1
    SiC-Fe、Al2O3-Fe质量比 R2 2∶1
    cBN-Fe压制力 p1 / kN 90
    SiC-Fe压制力 p2 / kN 110
    Al2O3-Fe压制力 p3 / kN 75
    cBN-Fe、SiC-Fe烧结温度 θ1 / ℃ 1 150
    Al2O3-Fe烧结温度 θ2 / ℃ 1 200
    cBN-Fe、SiC-Fe、Al2O3-Fe烧结时间 t1 / h 6
    cBN-Fe、Al2O3-Fe保温时间 t2 / h 2
    SiC-Fe保温时间 t3 / h 3
    下载: 导出CSV

    表  3  3种磁性磨粒铁磁性能对比

    Table  3.   Comparison of ferromagnetic properties of three kinds of magnetic abrasive grains

    名称饱和磁化强度
    Ms /(emu·g−1
    矫顽力
    Hc / Oe
    cBN-Fe133.152.4
    SiC-Fe 92.245.7
    Al2O3-Fe 75.793.6
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-08-15
  • 修回日期:  2022-11-30
  • 录用日期:  2022-12-09
  • 刊出日期:  2023-08-30

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