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弯管磁粒研磨的差异化加工工艺试验研究

徐进文 陈松 胡菁华 张磊 杨欢 陈燕

徐进文, 陈松, 胡菁华, 张磊, 杨欢, 陈燕. 弯管磁粒研磨的差异化加工工艺试验研究[J]. 金刚石与磨料磨具工程, 2022, 42(4): 481-487. doi: 10.13394/j.cnki.jgszz.2021.3005
引用本文: 徐进文, 陈松, 胡菁华, 张磊, 杨欢, 陈燕. 弯管磁粒研磨的差异化加工工艺试验研究[J]. 金刚石与磨料磨具工程, 2022, 42(4): 481-487. doi: 10.13394/j.cnki.jgszz.2021.3005
XU Jinwen, CHEN Song, HU Jinghua, ZHANG Lei, YANG Huan, CHEN Yan. Experimental study on differential processing technology of magnetic particle grinding of elbow[J]. Diamond &Abrasives Engineering, 2022, 42(4): 481-487. doi: 10.13394/j.cnki.jgszz.2021.3005
Citation: XU Jinwen, CHEN Song, HU Jinghua, ZHANG Lei, YANG Huan, CHEN Yan. Experimental study on differential processing technology of magnetic particle grinding of elbow[J]. Diamond &Abrasives Engineering, 2022, 42(4): 481-487. doi: 10.13394/j.cnki.jgszz.2021.3005

弯管磁粒研磨的差异化加工工艺试验研究

doi: 10.13394/j.cnki.jgszz.2021.3005
基金项目: 国家自然科学基金(51775258); 辽宁省教育厅基金(2020FWDF07)
详细信息
    通讯作者:

    陈松,男,1976年生,副教授。主要研究方向:精密加工与特种加工。E-mail:paicchensong@126.com

  • 中图分类号: TG58; TG73

Experimental study on differential processing technology of magnetic particle grinding of elbow

  • 摘要: 根据弯管冲蚀破坏处的特点,提出一种新的差异化加工工艺。利用机械手的灵活性,在弯管加工过程中改变弯管内外侧的加工间隙,实现弯管内壁的差异化研磨,提高其表面质量。结果表明:在加工时间为75 min,弯管内外侧加工间隙均为2.0 mm时,弯管外弧的内表面粗糙度从0.70 μm下降到0.34 μm,弯管内弧的内表面粗糙度从0.82 μm下降到0.32 μm;在差异化研磨时,弯管外侧加工间隙为1.5 mm,内侧加工间隙保持为2.0 mm不变,弯管外弧的内表面粗糙度从0.70 μm下降到0.26 μm,弯管内弧的内表面粗糙度从0.82 μm下降到0.29 μm。差异化研磨可有效提高弯管的内表面质量。

     

  • 图  1  弯管缺陷图

    Figure  1.  Elbow defect diagram

    图  2  弯管磁粒研磨原理

    Figure  2.  Magnetic particle grinding principle of bending tube

    图  3  磨粒受力分析

    Figure  3.  Force analysis of abrasive particles

    图  4  研磨轨迹示意图

    Figure  4.  Lapping trajectory diagram

    图  5  磁感应强度云图

    Figure  5.  Magnetic induction intensity nephogram

    图  6  磁感应强度曲线

    Figure  6.  Magnetic induction intensity curve

    图  7  磁粒研磨装置

    Figure  7.  Magnetic particle grinding device

    图  8  传统磁粒研磨加工示意图

    Figure  8.  Schematic diagram of traditional magnetic particle grinding

    图  9  弯管偏置加工中线后的加工示意图

    Figure  9.  Machining schematic diagram of elbow after offsetting the machining center line

    图  10  试验平台

    Figure  10.  Experimental platform

    图  11  不同加工间隙下的弯管内弧的内表面粗糙度

    Figure  11.  Inner surface roughness of inner arc of elbow under different machining gaps

    图  12  弯管内表面的粗糙度变化曲线

    Figure  12.  Roughness variation curve of inner surface of elbow

    图  13  间隙调节后弯管的内表面微观形貌

    Figure  13.  Micro morphology of inner surface of elbow after gap adjustment

    图  14  弯管加工前后的内表面宏观形貌

    Figure  14.  Inner surface macro view of elbow before and after grinding

    表  1  弯管加工试验参数

    Table  1.   Experimental parameters of elbow machining

    参数取值
    磁性磨料基本颗粒尺寸 d1 / μm180
    加工间隙 d2 / mm1.0,1.5,2.0,2.5,3.0
    研磨液体积 V1 / mL5
    磁极转速 n / (r·min−1)600
    加工时间 t / min50
    进给速度 vw / (mm·s−11
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-09-30
  • 修回日期:  2022-03-04

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