聚焦射流三维电沉积加工技术

项目名称： 聚焦射流三维电沉积加工技术

项目编号： No.51475149

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 机械、仪表工业

项目作者： 明平美

作者单位： 河南理工大学

项目金额： 90万元

中文摘要： 三维(3D)金属微结构与零件的高效增材制造，需求旺盛，是3D金属打印领域的关注热点与研究前沿。面向金属微增材制造，射流电沉积技术虽盛有工艺潜能，但困于技术瓶颈制约而至今仍力不从心。本项目深入问题根源，引入特殊射流载体，提出一种金属微增材制造新技术--聚焦射流3D电沉积，并深入开展其基础理论与关键技术等方面的研究。重点探索多种典型形成或存在条件下(如气/液-液组合，圆/方形射流等)的聚焦射流阴极面特征区的传质与电场分布及电沉积行为特性、以及基于它们的沉积选择性、3D微制件成形精度、形貌与组织结构特征、机械力学性能等基础理论问题，建立传质速率、电流密度、选择性评价等的函数式；着力突破聚焦射流限域微区传质特征信息获取、极化曲线测量等关键技术，理论与实验研究相结合，构建聚焦射流3D电沉积的基础理论与关键技术体系，进而奠定其发展与工程应用基础，以期为我国金属3D微结构与零件的增材制造提供先进适用技术

中文关键词： 电化学加工；特种加工；微细加工；加工机理

英文摘要： To meet the increasingly needs of applications, the favorable additive manufacturing of three-dimensional (3D) metal microstructures and microparts is a hot and frontier issue in the metal 3D printing field. The jet electrodeposition technique has been respected to be used as an effective metal additive micromanufacturing method, but fails to realize that objective due to its some unsolved problems. A novel jet electrodeposition technique, called focused jet 3D-electrodeposition, is presented by employing a special focused jet in order to enhance its 3D additive micro-manufacturing capacity in this program. The main investigations will focuse on the fundamental theories and key technologies of this novel technique. Specificly, mass transfer characteristics, current distribution characteristics and electrodeposition behaviours of the proposed technique will be studied with the focused jets formed under some typical formation conditions, and then some fundamental issues on electrodeposition selectivity and shape accuracy, morphology, microstructures, properties of the 3D metal parts are evaluated. Further more, some key functions describing the distribution characteristics of mass transfer rate, current density and selectivity, etc., are developed. On the other hand, several key technologies concerning detection of characteristic information of mass transfer as well as measurement of polarization curves during the focused jet electrodeposition are researched in this program. Finally, the fundamental sytem of this novel technique will be constructed based on the theroretical and experimental investigations. The expectation that an advanced and applicable metal 3D additive micro-manufacturing technique will be developed is hoped to realized after this program.

英文关键词： Electrochemical machining;nontraditional machining;micromachining;machining mechanism