Preparation process and performances of cBN-Fe magnetic abrasive particles

Yuhan MA; Baorui ZHANG; Changle ZHOU; Baochi CHEN; Daqing WANG; Xin TIAN; Yunlong DING

doi:10.13394/j.cnki.jgszz.2022.0130

Jin'gangshi yu moliao moju gongcheng (Aug 2023)

Preparation process and performances of cBN-Fe magnetic abrasive particles

Yuhan MA,
Baorui ZHANG,
Changle ZHOU,
Baochi CHEN,
Daqing WANG,
Xin TIAN,
Yunlong DING

Affiliations

Yuhan MA: School of Mechanical Engineering and Automation, University of Science and Technology, Anshan 114051, Liaoning, China
Baorui ZHANG: School of Mechanical Engineering and Automation, University of Science and Technology, Anshan 114051, Liaoning, China
Changle ZHOU: School of Mechanical Engineering and Automation, University of Science and Technology, Anshan 114051, Liaoning, China
Baochi CHEN: School of Mechanical Engineering and Automation, University of Science and Technology, Anshan 114051, Liaoning, China
Daqing WANG: School of Mechanical Engineering and Automation, University of Science and Technology, Anshan 114051, Liaoning, China
Xin TIAN: School of Mechanical Engineering and Automation, University of Science and Technology, Anshan 114051, Liaoning, China
Yunlong DING: School of Mechanical Engineering and Automation, University of Science and Technology, Anshan 114051, Liaoning, China

DOI: https://doi.org/10.13394/j.cnki.jgszz.2022.0130
Journal volume & issue: Vol. 43, no. 4
pp. 422 – 431

Abstract

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In order to solve the problems of low hardness in the grinding phase material of magnetic abrasive particles prepared by the existing sintering method, the grinding effects on high-hardness and poor magnetic conductivity materials, such as titanium alloys, were found to be poor. Additionally, the hardest diamond material could not be used as the grinding phase to prepare magnetic abrasive particles by the sintering method. In this study, the cBN-Fe magnetic abrasive particles were prepared by sintering with Fe powder as the matrix and cBN powder as the grinding phase. The study focused on using Ti-6A1-4V (TC4) plates as the grinding objects, and the effects of sintering time, heating rate and raw material ratio on the grinding performances of cBN-Fe magnetic abrasive particles were explored using a control variable method. The aim was to determine the optimal preparation process parameters of cBN-Fe magnetic abrasive particles. Taking 45# steel and 202 stainless steel as grinding workpieces, the performance of cBN-Fe magnetic abrasive particles were compared with that of Al2O3-Fe and SiC-Fe magnetic abrasive particles, both prepared by the sintering method. The surface roughness and morphology of the workpieces before and after grinding with three kinds of magnetic abrasive particles were compared. Moreover, the grinding performance and service life of different magnetic abrasive particles were investigated. The results show that the best grinding performances for cBN-Fe magnetic abrasive particles was achieved when using a mass ratio of Fe powder to cBN powder of 3∶1, a sintering temperature of 1150 ℃, a sintering time of 6 h, a holding time of 2 h and a heating rate of 3.19 ℃/min. Furthermore, it is found that the grinding performance of cBN-Fe magnetic abrasive particles is better than that of Al2O3-Fe and SiC-Fe magnetic abrasive particles prepared by sintering. The service life of cBN-Fe magnetic abrasive particles is 1.6 times and 1.3 times longer than that of Al2O3-Fe and SiC-Fe magnetic abrasive particles, respectively.

Published in Jin'gangshi yu moliao moju gongcheng

ISSN: 1006-852X (Print)
Publisher: Zhengzhou Research Institute for Abrasives & Grinding Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Mechanical engineering and machinery
Website: http://www.daemagazine.com/

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