南京航空航天大学学报（英文版）2009，Vol.26Issue(3)：163-169,7.
绝缘层厚度对孔电解加工稳定性和精度的影响
EFFECTS OF ELECTRODE INSULATION THICKNESS ON ELECTROCHEMICAL DRILLING STABILITY AND ACCURACY
摘要
Abstract
Effect of electrode insulation on the electric field and the flow field of the machining gap during electrochemical drilling(ECD) is numerically studied. Electric field simulation shows that the current density along the side gap decreases with increasing the thickness of electrode insulation. And the analysis of the electrolyte flow in the frontal gap shows that the insulation thickness has a remarkable influence on the pressure distributions. Experiments investigate the influence of the insulation thickness on the main characteristics of the machined hole, i.e., radial overcut, entrance conicity, and current stability. The poor hole is observed and identified as most likely to occur with a combination of the low tool feed rate and the low insulation thickness. The appropriate thickness of the insulating layer leads to an improvement on hole accuracy and machining stability.关键词
电解加工/绝缘涂层/稳定性/孔电解加工Key words
electrochemical cutting/ electric insulating coatings/ stability/ electrochemical drilling(ECD)分类
矿业与冶金引用本文复制引用
王维,朱荻,曲宁松,黄绍服,房晓龙..绝缘层厚度对孔电解加工稳定性和精度的影响[J].南京航空航天大学学报（英文版）,2009,26(3):163-169,7.基金项目
国家自然科学基金(50635040)资助项目 （50635040）
国家高技术研究发展计划("八六三"计划)(2006AA04Z321)资助项目 （"八六三"计划）
江苏省自然科学基金(BK2008043)资助项目. Foundation items: Supported by the National Natural Science Foundation of China(50635040) （BK2008043）
the National High Technology Research and Development Program of China(＂863＂Program)(2006AA04Z321) （＂863＂Program）
the Natural Science Foundation of Jiangsu Province(BK2008043). （BK2008043）
