Interfacial reactions and forming mechanism of composite abrasive grains in oxide film on ELID wheel

KUAI Jicai; DUAN Yunqian; ARDASHEV D V

doi:10.37188/OPE.20233120.2975

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Interfacial reactions and forming mechanism of composite abrasive grains in oxide film on ELID wheel

Micro/Nano Technology and Fine Mechanics | 更新时间：2023-11-27

- Interfacial reactions and forming mechanism of composite abrasive grains in oxide film on ELID wheel
- Optics and Precision Engineering Vol. 31, Issue 20, Pages: 2975-2985(2023)
- 作者机构：
  
  1.河南理工大学机械动力与工程学院，河南焦作454000
  2.南乌拉尔国立大学机械与工程学院，俄罗斯车里雅宾斯克 454080
- 作者简介：
- 基金信息：
- DOI：10.37188/OPE.20233120.2975
  CLC：
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郐吉才,段云乾,ARDASHEV D V.在线电解修锐砂轮氧化膜界面反应及复合磨粒形成机理[J].光学精密工程,2023,31(20):2975-2985.

KUAI Jicai,DUAN Yunqian,ARDASHEV D V.Interfacial reactions and forming mechanism of composite abrasive grains in oxide film on ELID wheel[J].Optics and Precision Engineering,2023,31(20):2975-2985.
郐吉才,段云乾,ARDASHEV D V.在线电解修锐砂轮氧化膜界面反应及复合磨粒形成机理[J].光学精密工程,2023,31(20):2975-2985. DOI： 10.37188/OPE.20233120.2975.

KUAI Jicai,DUAN Yunqian,ARDASHEV D V.Interfacial reactions and forming mechanism of composite abrasive grains in oxide film on ELID wheel[J].Optics and Precision Engineering,2023,31(20):2975-2985. DOI： 10.37188/OPE.20233120.2975.

摘要

Electrolytic In-process Dressing （ELID）砂轮氧化膜具有辅助抛光性能，对改善磨削表面质量具有极其重要意义。分析了ELID砂轮表面氧化膜界面反应及复合磨粒的形成机理，利用X-射线衍射（μ-XRD）微区分析及电子能谱仪（XPS）对复合磨粒的组成成分、复合区域进行了测试，用扫描电镜（SEM）和透射电镜（TEM）对其形状、粒度、微观结构进行了研究。研究表明，氧化膜中复合磨粒是以磨粒为中心，从中心到边缘的成分依次为α-Fe,2,O,3,，γ-Fe,2,O,3,，FeO（OH），Fe（OH）,3,等氧化物的复合结构。复合磨粒表面形成的氧化膜，呈层层堆积的圆葱状结构，磨削脱水后呈龟背状裂纹。复合磨粒形状为近似长圆形，粒度可达11.5 μm到50 μm。若干个复合磨粒在氧化膜内连续成网状结构，该网状结构对氧化膜辅助抛光有利，复合磨粒有效去除宽度为磨粒粒度及α-Fe,2,O,3,层宽度。

Abstract

An oxide film with assistive polishing properties is of great importance for improving the quality of grinding in an ELID grinding wheel. The interface reaction of oxide film on the surface of an ELID grinding wheel and the formation mechanism of the composite abrasive particles were analyzed. The composition regions of the composite abrasive particles were examined using X-ray diffraction micro-zone analysis （μ-XRD） and electron energy spectroscopy （XPS）. The shapes， particle sizes， and microstructures were studied using scanning electron microscopy and transmission electron microscopy. The oxide film is centered on the composite abrasive particles， with α-Fe,2,O,3,， γ-Fe,2,O,3,， FeO（OH）， Fe（OH）,3,， and other oxides extending from the center to the edges. The oxide film that formed on the surface of the composite abrasive grains has a layered onion-like structure and， upon grinding and dehydration， a tortoise-black-like crack. The composite abrasive grains have an elongated-circular shape， with particle sizes ranging from 11.5 to 50 μm. Several composite abrasive grains continuously formed a mesh structure in the oxide film. The mesh structure favors auxiliary polishing of the oxide film， and the effective removal width of the composite abrasive grains is the size of an abrasive grain plus the width of the α-iron oxide layer.

关键词

ELID磨削氧化膜界面反应复合磨粒α-Fe2O3

Keywords

electrolytic in-process dressing grindingoxide filminterfacial reactionscomposite abrasive grainα-Fe2O3

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