东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (2): 263-268.DOI: 10.12068/j.issn.1005-3026.2015.02.024

• 机械工程 • 上一篇    下一篇

塑性材料微磨削表面质量影响因素试验研究

巩亚东, 吴艾奎, 程军, 张毕   

  1. (东北大学 机械工程与自动化学院, 辽宁 沈阳110819)
  • 收稿日期:2014-01-02 修回日期:2014-01-02 出版日期:2015-02-15 发布日期:2014-11-07
  • 通讯作者: 巩亚东
  • 作者简介:巩亚东(1958-),男,辽宁本溪人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51375082).

Experimental Study on Influencing Factors of Surface Quality in Micro-grinding Plastic Materials

GONG Ya-dong, WU Ai-kui, CHENG Jun, ZHANG Bi   

  1. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China.
  • Received:2014-01-02 Revised:2014-01-02 Online:2015-02-15 Published:2014-11-07
  • Contact: GONG Ya-dong
  • About author:-
  • Supported by:
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摘要: 针对TC4钛合金和H62黄铜两种典型塑性材料进行了微尺度磨削试验研究,利用超景深显微镜与三维轮廓仪对微磨削加工表面的微观形貌进行了分析,从理论上介绍了微磨削表面形成机理以及最小切屑厚度效应.根据微磨削加工的特点,选用不同的加工参数进行单因素试验和正交试验,主要探讨了微尺度磨削速度、磨削深度及进给速度对塑性材料微磨削表面质量的影响;对比分析不同磨棒头直径、不同粒度的微磨棒以及不同磨削方式对试件加工表面质量的影响.研究表明,微磨削中工件表面粗糙度随磨削深度的增加有先减小后增大的趋势,侧磨的加工质量比槽磨的质量好.

关键词: 微磨削, 微磨削加工机理, 微磨具, 表面粗糙度, 表面形貌

Abstract: TC4 titanium alloy and H62 brass, as two kinds of typical plastic materials, were studied in micro-scale grinding experiment. The surface micro-morphology was investigated by using microscope with super depth of field and three-dimensional profiler. The surface formation mechanism in micro-grinding and the effect of minimum chip thickness were analyzed theoretically. Based on the characteristics of micro-grinding, both single factor and orthogonal tests were carried out with different processing parameters. The effects of grinding parameters, such as grinding speed, grinding depth and feed speed, were investigated on the micro-grinding surface quality of the plastic materials. The effects of head diameters, grit of micro-grinding rod and grinding modes on the specimen’s surface quality were also studied. The result shows that the surface roughness of ground workpiece decreases firstly and then increases with increasing the grinding depth, and the processing quality of side grinding is better than that of the groove grinding.

Key words: micro-grinding, micro-grinding mechanism, micro-grinding tool, surface roughness;surface topography

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