Mechanism and Quality Analysis of Laser Assisted Grinding of Silicon Nitride Ceramics Influenced by Regular Patterns

被引：0
|
作者：
Zheng D. [1 ]
Qian W. [1 ]
Wu C. [2 ]
Guo W. [1 ]
机构：
[1] School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai
[2] College of Mechanical Engineering, Donghua University, Shanghai
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2022年 / 58卷 / 15期
关键词：
grinding force; grinding mechanism; laser induced micro-groove; silicon nitride; surface roughness;
D O I：
10.3901/JME.2022.15.152
中图分类号：
学科分类号：
摘要：
In order to solve the problem of difficult machining of silicon nitride ceramics, the laser induced micro-groove assisted grinding is studied. According to the mechanism of laser-assisted grinding, an experimental system of laser-assisted grinding is built, and three kinds of regular pattern surface microstructures, such as ring, checkerboard and arc, are designed. Through the grinding mechanics and geometry analysis of the influence of three kinds of regular patterns micro-grooves, and then combined with the grinding process cutter design, the grinding force and surface roughness of silicon nitride ceramics are measured. The results show that the laser induced micro-groove assisted grinding can reduce the grinding force and surface roughness of engineering ceramics, so as to improve the grinding efficiency and quality of engineering ceramics. The grinding force of the surface with laser induced micro-texture at 40 μm grinding depth is similar to that of the surface without laser assisted grinding at 10 μm grinding depth, and the machining quality can be improved up to 6%. Meanwhile, comparison of grinding force and machining quality shows that the ring regular pattern is the best laser induced micro-groove trajectory. © 2022 Editorial Office of Chinese Journal of Mechanical Engineering. All rights reserved.
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页码：152 / 165
页数：13
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