张世学,丁云龙,吕旖旎,王荟江,陈燕.烧结法制备铁基立方氮化硼磁性磨粒及其磨削性能研究[J].表面技术,2022,51(9):271-279.
ZHANG Shi-xue,DING Yun-long,LYU Yi-ni,WANG Hui-jiang,CHEN Yan.Preparation and Grinding Performance of Iron-based Cubic Boron Nitride Magnetic Abrasive Particles by Sintering Method[J].Surface Technology,2022,51(9):271-279
烧结法制备铁基立方氮化硼磁性磨粒及其磨削性能研究
Preparation and Grinding Performance of Iron-based Cubic Boron Nitride Magnetic Abrasive Particles by Sintering Method
  
DOI:10.16490/j.cnki.issn.1001-3660.2022.09.028
中文关键词:  烧结法  磁性磨粒  立方氮化硼  磁粒研磨
英文关键词:sintering method  magnetic abrasive particles  cubic boron nitride  grinding of magnetic abrasive particles
基金项目:辽宁省教育厅科学研究经费项目(2019LNQN01);辽宁省科技厅博士启动经费(2021–BS–241)
作者单位
张世学 辽宁科技大学 机械工程与自动化学院,辽宁 鞍山 114051 
丁云龙 辽宁科技大学 机械工程与自动化学院,辽宁 鞍山 114051 
吕旖旎 辽宁科技大学 机械工程与自动化学院,辽宁 鞍山 114051 
王荟江 辽宁科技大学 机械工程与自动化学院,辽宁 鞍山 114051 
陈燕 辽宁科技大学 机械工程与自动化学院,辽宁 鞍山 114051 
AuthorInstitution
ZHANG Shi-xue School of Mechanical Engineer and Automation, University of Science and Technology, Liaoning Anshan 114051, China 
DING Yun-long School of Mechanical Engineer and Automation, University of Science and Technology, Liaoning Anshan 114051, China 
LYU Yi-ni School of Mechanical Engineer and Automation, University of Science and Technology, Liaoning Anshan 114051, China 
WANG Hui-jiang School of Mechanical Engineer and Automation, University of Science and Technology, Liaoning Anshan 114051, China 
CHEN Yan School of Mechanical Engineer and Automation, University of Science and Technology, Liaoning Anshan 114051, China 
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中文摘要:
      目的 解决现有烧结法制备磁性磨粒工艺中存在的研磨相单一、研磨相材料硬度相对较低,以及对于高硬度难加工材质的研磨效率低、质量差等问题,采用立方氮化硼粉末作为研磨相烧结制备一种新型磁性磨粒。方法 采用烧结法制备铁基立方氮化硼磁性磨粒,探究原料的粒径比、烧结温度对磁性磨粒磨削性能的影响,以TC4钛合金板和Si3N4陶瓷板为试验对象,通过表面粗糙度测量仪和3D超景深显微镜对比加工前后工件的表面质量,采用扫描电镜观察加工后磁性磨粒的表面形貌,以此作为磁性磨粒的研磨性能和使用寿命的评价指标,并采用面扫描能谱分析仪观察磁性磨粒中研磨相的分布情况。结果 采用烧结法,以铁粉为基体,以立方氮化硼粉末为研磨相材料,制备磁性磨粒。最终确定压制力为90 kN,基体与研磨相的粒径比为3∶1,烧结温度为1 180 ℃,在此条件下制备的磁性磨粒具有良好的磨削性能,相较于烧结法制备的Al2O3/Fe、SiC/Fe磁性磨粒具有更强的磨削性能,可实现Si3N4陶瓷板表面的光整加工,在研磨39 min后可将其表面粗糙度由1.382 μm降至0.117 μm。结论 采用烧结法制备的铁基立方氮化硼磁性磨粒能够解决硬脆材料的表面质量问题,可以作为性能优异的磨削介质参与研磨,满足磁粒研磨光整加工技术的需求。
英文摘要:
      The work aims to solve the problems of single grinding phase, relatively low hardness of grinding phase materials, low grinding efficiency and poor quality of high-hardness and difficult-to-process materials in the existing sintering process for preparing magnetic abrasive particles and to prepare a new type of magnetic abrasive particles by sintering with cubic boron nitride powder as grinding phase. Iron-based cubic boron nitride magnetic abrasive particles were prepared by sintering method, and the effects of particle size ratio of raw materials and sintering temperature on the grinding performance of magnetic abrasive particles were investigated. TC4 titanium alloy plate and Si3N4 ceramic plate were taken as experimental objects, and the surface quality of workpiece before and after processing was compared by surface roughness measuring instrument and 3D depth-of-field microscope. The surface morphology of magnetic abrasive particles after processing was observed by scanning electron microscope as the evaluation index of grinding performance and service life of magnetic abrasive particles, and the distribution of abrasive phases in magnetic abrasive particles was observed by surface scanning energy spectrum analyzer. Magnetic abrasive particles were prepared by sintering method with iron powder as matrix and cubic boron nitride powder as grinding phase material. The final pressing force was 90 kN, the particle size ratio of matrix and grinding phase was 3∶1, and the sintering temperature was 1 180 ℃. Under these conditions, the magnetic abrasive particles prepared had good grinding performance, which was stronger than that of Al2O3/Fe and SiC/Fe magnetic abrasive particles prepared by sintering method, and the surface finishing of Si3N4 ceramic plate could be realized. After grinding for 39 min, the surface roughness could be reduced from 1.382 μm to 0.117 μm. Iron-based cubic boron nitride magnetic abrasive particles prepared by sintering method can solve the surface quality problems of hard and brittle materials, and can be used as grinding media with excellent performance to participate in grinding, meeting the requirements of magnetic particle grinding and finishing technology.
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