Modeling and Simulation of the Surface Topography Generation With Engineered Grinding Wheel

Modeling and Simulation of the Surface Topography Generation With Engineered Grinding Wheel

Copyright: © 2020 |Pages: 23
DOI: 10.4018/978-1-7998-1546-4.ch017

Abstract

Precision grinding can obtain workpiece with high surface quality and high precision, but random distribution of abrasive grains on the grinding wheel surface poses a certain difficulty to improvement of machining precision and quality. This study established kinematic model of multiple grains, simulated the grain distribution on the surface of the common grinding wheel by using the grain vibration method, and examined the effect of different grinding parameters on the surface topography of the workpiece. Results show that the peaks and valleys on the profile curve of the workpiece surface increase and the corresponding Ra and Rz heights decrease, as the peripheral velocity of the grinding wheel increases. The peaks and valleys on the profile curve of the workpiece surface decrease, and the corresponding Ra and Rz heights increase as the feed speed of the workpiece increases. The number of grinding cracks on the surface of the workpiece decreases, the length of each crack increases, and the bump height on the surface increases slightly as the grinding depth increases.
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17.2 Engineered Grinding Wheel

17.2.1 Definition of Engineered Grinding Wheel

Precision grinding can obtain workpiece with high surface quality and high precision (Dold et al., 2011; Guo et al., 2017; Jia, Li, Zhang, Zhang, & Zhang, 2014; Jia, Li, Zhang, Zhang, & Zhang, 2016; Xu et al., 2019), it is usually taken as the final part machining procedure, but random distribution of abrasive grains on the grinding wheel surface poses a certain difficulty to improvement of machining precision and quality (Koshy, Iwasald, & Elbestawl, 2003; Ren & Hua, 2011). In order to solve the above problem, Canadian scholar P. Koshy (Chen, Wang, Yushan, Liu, & Wang, 2015; Heinzel, Rickens, & Trumpold, 2009; Koshy et al., 2003) proposed the concept of engineered grinding wheel in the 53rd CIRP annual meeting, namely grinding wheel manufactured according to manually set spatial distribution matrix and protruding height of abrasive grains with the same size.

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