哈尔滨工程大学学报Issue(10)：1316-1320,5.DOI:10.3969/j.issn.1006-7043.201209077
微细电火花线切割加工表面摩擦性能的研究
Research on tribological properties of micro wire electrical discharge machining surface
摘要
Abstract
The technique of micro wire electrical discharge machining ( Micro-WEDM ) has become an important method for the machining of 3D intricate micro parts. However, there is little research on tribological properties of the machining surface. In this paper, the micro energy of micro wire electrical discharge machining ( micro-WEDM) was lower than 35 μJ. With the discharge mechanism and the thermodynamic transfer process, the tribo-logical wear properties of micro-WEDM surface were investigated under dry friction conditions. In addition, the mi-cro-WEDM surface was compared with superfine grinding machining surface under the same conditions. Results show that, because the micro-WEDM surface has its own microstructure characteristics, the micro-projections re-duced the friction contact area. Due to the containing of micro-concave pits, the quantity of abrasive particles re-maining on the friction surface was reduced. The oxidation film formed by increase in temperature reduced the shear strength of micro-projections contact interfaces, and the friction process transformed from two-body friction to three-body friction, so to reduce the friction coefficient,the abrasive wear and the adhesive wear were reduced. Therefore, the tribological performance of the micro-WEDM surface is superior to the superfine grinding machining surface.关键词
微细电火花线切割/表面形貌/干摩擦/摩擦性能Key words
micro wire electrical discharge machining/surface morphology/dry friction/tribological properties分类
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崔海,郭黎滨,张彬,陆喜文..微细电火花线切割加工表面摩擦性能的研究[J].哈尔滨工程大学学报,2013,(10):1316-1320,5.基金项目
工业与信息化部基础科研资助项目（ J192007B001）． （）
