Preparation of Porous Brazed Grinding Wheels and Experimental Research of SiC Ceramic Grinding

被引：0
|
作者：
Liu W. [1 ,2 ]
Mao G. [1 ,2 ]
Yan C. [1 ,2 ]
Li B. [1 ,2 ]
机构：
[1] School of Mechanical Engineering, Hunan University of Science and Technology, Hunan, Xiangtan
[2] Hunan Prov. Key Laboratory of High Efficiency and Precision Machining of Difficult-to-cut Material, Hunan University of Science and Technology, Hunan, Xiangtan
来源：
Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2022年 / 33卷 / 15期
关键词：
brazed grinding wheel; grinding performance; porous; SiC ceramics; TiH[!sub]2[!/sub;
D O I：
10.3969/j.issn.1004-132X.2022.15.004
中图分类号：
学科分类号：
摘要：
Based on the molding and vacuum solid-phase sintering processes，a porous brazed diamond grinding wheel（PBDGW）with high bonding strength and uniform pore distribution was prepared by using Cu-10Sn binder，oxidation pretreated TiH2 brazed pore-forming agent and MBD8 diamond abrasive particles. The SiC ceramic grinding experiments of PBDGW and multilayer brazed diamond grinding wheel（MBDGW） were carried out for comparison，then the grinding performances of grinding wheel were analyzed from grinding force，workpiece surface roughness and surface/sub-surface morphology. The experimental results show that the tangential force in SiC ceramics grinding with PBDGW decreases by 8.4%～23.6%，the normal force decreases by 10.2%～38.6%，and the average reduction of surface roughness is as 10.4%. The workpiece surface has better integrity，and the surface/sub-surface brittle fracture，microscopic crack and other defects are less. © 2022 China Mechanical Engineering Magazine Office. All rights reserved.
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页码：1787 / 1793
页数：6
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