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小直径磨棒磨削加工TiC颗粒增强钢基复合材料GT35

邵梦博 陈博川 高晓星 袁松梅

邵梦博, 陈博川, 高晓星, 袁松梅. 小直径磨棒磨削加工TiC颗粒增强钢基复合材料GT35[J]. 金刚石与磨料磨具工程, 2022, 42(3): 338-347. doi: 10.13394/j.cnki.jgszz.2021.3007
引用本文: 邵梦博, 陈博川, 高晓星, 袁松梅. 小直径磨棒磨削加工TiC颗粒增强钢基复合材料GT35[J]. 金刚石与磨料磨具工程, 2022, 42(3): 338-347. doi: 10.13394/j.cnki.jgszz.2021.3007
SHAO Mengbo, CHEN Bochuan, GAO Xiaoxing, YUAN Songmei. Grinding of TiC particle-reinforced steel-matrix composite GT35 with small diameter grinding rods[J]. Diamond &Abrasives Engineering, 2022, 42(3): 338-347. doi: 10.13394/j.cnki.jgszz.2021.3007
Citation: SHAO Mengbo, CHEN Bochuan, GAO Xiaoxing, YUAN Songmei. Grinding of TiC particle-reinforced steel-matrix composite GT35 with small diameter grinding rods[J]. Diamond &Abrasives Engineering, 2022, 42(3): 338-347. doi: 10.13394/j.cnki.jgszz.2021.3007

小直径磨棒磨削加工TiC颗粒增强钢基复合材料GT35

doi: 10.13394/j.cnki.jgszz.2021.3007
基金项目: 基础科研计划(JCKY2018601B201)。
详细信息
    通讯作者:

    袁松梅,女,1971年生,教授、博士生导师。主要研究方向:先进加工技术及装备、医工结合。E-mail:yuansm@buaa.edu.cn

  • 中图分类号: TG74; TG58; TQ164

Grinding of TiC particle-reinforced steel-matrix composite GT35 with small diameter grinding rods

  • 摘要: 为探究TiC颗粒增强钢基复合材料GT35合理的加工参数和冷却润滑条件,研究其对切削力、表面质量及刀具磨损的影响规律,采用小直径磨棒以侧面磨削方式开展试验。结果表明:干磨削会引起磨棒烧伤,极压磨削油的润滑效果优于水基合成磨削液的;磨棒在极压磨削油润滑下,磨削工件12 min后进入稳定磨损状态,其主要磨损形式为磨粒破碎、磨粒磨耗和磨粒脱落;主轴转速对切削力的影响大于进给速度的,且转速越高,切削力越小;工件表面粗糙度主要与磨棒磨粒出露高度的平整度有关,受加工参数的影响较小。用小直径磨棒磨削加工GT35材料时,应选择极压磨削油润滑,高主轴转速、中速进给的加工方式,以获得良好的刀具寿命、工件加工表面质量及适当的加工效率。

     

  • 图  1  GT35材料表面微观形貌

    Figure  1.  Surface micromorphology of GT35

    图  2  侧面磨削加工过程示意图

    Figure  2.  Diagram of the side grinding process

    图  3  试验系统设置图

    Figure  3.  Test system set-up diagram

    图  4  试验中所使用的磨棒和工件

    Figure  4.  Grinding rods and workpieces used in the tests

    图  5  切屑形貌及其附着在磨棒表面状态

    Figure  5.  Chip morphology and chip adhesion to grinding rod surface

    图  6  磨棒表面状态

    Figure  6.  Grinding rod surface condition

    图  7  水油接触角示意图

    Figure  7.  Water-oil contact angle diagram

    图  8  不同冷却方式下切削力变化图

    Figure  8.  Graph of cutting force variation with different cooling methods

    图  9  不同磨削液对加工表面质量的影响

    Figure  9.  Influence of different grinding fluids on the quality of the machined surface

    图  10  磨棒磨损状态曲线图

    Figure  10.  Grinding rod wear status graphs

    图  11  剧烈磨损阶段磨棒挠曲变形状态

    Figure  11.  Grinding rod flexural deformation in the severe wear phase

    图  12  金刚石磨粒破碎观测图

    Figure  12.  Diamond abrasive grain fracture observation diagram

    图  13  金刚石磨粒磨耗磨损观测图

    Figure  13.  Diamond abrasive wear observation diagram

    图  14  金刚石磨粒脱落观测图

    Figure  14.  Observation chart for diamond abrasive grain shedding

    图  15  试验中所采集的切削力

    Figure  15.  Cutting forces collected during the test

    图  16  磨棒几何尺寸对切削的影响

    Figure  16.  Influence of grinding rod geometry on cutting

    图  17  工艺参数对切削力的影响

    Figure  17.  Influence of process parameters on cutting forces

    图  18  工艺参数对表面质量的影响

    Figure  18.  Influence of process parameters on surface quality

    图  19  加工表面成型示意图

    Figure  19.  Schematic diagram of machining surface forming

    图  20  GT35加工后的表面形貌

    Figure  20.  Surface profile of GT35 after machining

    表  1  冷却润滑试验参数设置

    Table  1.   Cooling-lubrication test parameter setting

    参数取值
    主轴转速 n1 / (r·min−1) 15 000
    进给速度 vf / (mm·min−1) 30
    切削深度 ap / mm 3
    切削宽度 ae / mm 0.5
    重复试验次数 N 5
    下载: 导出CSV

    表  2  磨棒磨损试验参数设置

    Table  2.   Grinding rod wear test parameter setting

    参数取值
    主轴转速 n2 / (r·min−1) 25 000
    进给速度 vf / (mm·min−1) 10
    切削深度 ap / mm 3
    切削宽度 ae / mm 0.1
    下载: 导出CSV

    表  3  工艺试验参数设置

    Table  3.   Process test parameter setting

    试验参数试验设置
    主轴转速 n / (r·min−1)10 000,15 000,20 000,
    25 000
    进给速度 vf / (mm·min−1)10,18,26,34
    切削深度 ap / mm3
    切削宽度 ae / mm0.2
    下载: 导出CSV
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  • 录用日期:  2022-05-01
  • 收稿日期:  2021-12-23
  • 修回日期:  2022-01-28

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