电流变抛光液剪切屈服特性

›› 2012, Vol. 42 ›› Issue (05): 1145-1150.

电流变抛光液剪切屈服特性

张雷, 赵云伟, 杨卓, 赵继

吉林大学机械科学与工程学院, 长春 130022

收稿日期:2011-09-01 出版日期:2012-09-01 发布日期:2012-09-01
基金资助:
教育部新世纪优秀人才支持计划项目( NCET-06-0312) ; 吉林省杰出青年基金项目( 20050121).

Shear yield property of electrorheological polishing fluid

ZHANG Lei, ZHAO Yun-wei, YANG Zhuo, ZHAO Ji

College of Mechanical Science and Engineering,Jilin University,Changchun 130022,China

Received:2011-09-01 Online:2012-09-01 Published:2012-09-01

摘要/Abstract

摘要： 通过电子显微镜观察了在电场作用下电流变抛光液微粒垂直电极形成的纤维柱状微观结构。根据粒子的结合模型和粒子间的作用力,建立了电流变抛光液的静态剪切屈服应力模型,计算了粒子链的抗剪切强度。在屈服应力测试装置上进行了电流变抛光液的静态剪切屈服应力实验,得到了磨料种类、浓度和粒度对电流变抛光液的剪切屈服应力的影响规律,并通过实验对理论模型进行了验证。

关键词: 机械制造自动化, 电流变抛光液, 剪切屈服应力, 电场强度

Abstract: The shear yield property of electrorheological (ER) polishing fluid was investigated for ER fluid-assisted polishing. The microstructure of fibrous columns formed by particles perpendicular to the electrodes was observed by electronic microscope when the electrical field was applied. A theoretical model for the static shear yield stress of the ER polishing fluid was built to calculate the shear strength of the chain structure of particles, which was based on the combination structure of ER particles with abrasive particles and the attraction forces between particles in ER polishing fluid. A series of experiments were conducted to measure the static shear yield stress of ER polishing fluid by the developed yield stress testing device. The effects of the species, sizes and concentrations of abrasive particles on the shear yield stress of ER polishing fluid were obtained and the validity of the presented model was confirmed by experiments.

Key words: mechanical manufacturing and automation, electrorheological polishing fluid, shear yield stress, electrical field intensity

中图分类号:

TG580.692

张雷, 赵云伟, 杨卓, 赵继. 电流变抛光液剪切屈服特性[J]. , 2012, 42(05): 1145-1150.

ZHANG Lei, ZHAO Yun-wei, YANG Zhuo, ZHAO Ji. Shear yield property of electrorheological polishing fluid[J]. , 2012, 42(05): 1145-1150.

参考文献

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