### 基于多颗磨粒随机分布的虚拟砂轮建模及磨削力预测

1. 厦门大学 物理与机电工程学院, 厦门 361005
• 收稿日期:2014-02-26 修回日期:2014-03-28 出版日期:2014-12-25 发布日期:2014-04-22
• 通讯作者: 姚斌 男, 博士, 教授, 博士生导师.主要研究方向: 复杂曲面成形与先进制造技术. Tel: 0592-2186923 E-mail: yaobin@xmu.edu.cn E-mail:yaobin@xmu.edu.cn
• 作者简介:张祥雷 男, 博士研究生.主要研究方向: 先进制造技术. Tel: 0592-2186923 E-mail: zhxile2008@sina.com
• 基金资助:

厦门市科技计划项目 (3502Z20131007)

### Modeling of Virtual Grinding Wheel Based on Random Distribution of Multi Abrasive Grains and Prediction of Grinding Force

ZHANG Xianglei, YAO Bin, FENG Wei, SHEN Zhihuang

1. Department of Mechanical and Electrical Engineering, Xiamen University, Xiamen 361005, China
• Received:2014-02-26 Revised:2014-03-28 Online:2014-12-25 Published:2014-04-22
• Supported by:

Science and Technology Plan Projects of Xiamen City (3502Z20131007)

Abstract:

The distribution of abrasive grains existing in diamond grinding wheel surface is firstly measured by a VHX-600E optic microscope. The density of abrasive grains, the actual contact length and the effective number of abrasive grains are then calculated. Based on the assumption of interval distribution of abrasive grains and virtual grid method, the surface of virtual grinding wheel is randomly distributed with multi hexahedron abrasive grains which are equal in density. Besides, the posture of abrasive grains is randomly allocated to simulate the real topography of grinding wheel. The 3D simulated model of virtual grinding is built by importing a 1/4 virtual grinding wheel model into Deform-3D software and the simulated grinding force value of multi grains is obtained by Lagrangian Incremental algorithm. The multi-grain grinding force predictive model is then built with the simulated model. A carbide blade grinding experiment is performed to validate the predictive model by comparing the measured grinding force with the predictive force. The test verifies the accuracy and effectiveness of the proposed model in the paper. This paper provides a new method to investigate the grinding force which is co-grinded by multi-grains.