摘要
叠层模板电沉积是一种为实现高效率、低成本、低能耗制备微小尺寸复杂结构金属零件而开发的新型加工技术。该技术理论上结合了离影堆积的技术思想与传统电沉积工艺，通过在二维模板的辅助下的重复电沉积过程以实现对三维实体制造的简化。通过前期实验，认为该技术的关键在于保证层间表面的沉积质量，避免或减弱处在模板图案的特殊位置所产生的电流密集现象，保证沉积面的均匀度。试验中，对工艺参数进行了优化，选用厚度0．3mm的环氧树脂模板在电流密度为4A／dm^2～6A／dm^2、温度为40℃时的工艺条件制备出一批截面为30mm×30mm，厚度为7mm的具有一定几何形状和机械性能的铜质零件。
Laminated templates electro-deposition is an original manufacturing technology that enables an accurate and economical fabrication of metallic structures with complex geometry. This technique is theoretically based on the combination of the principle of discrete piling-up and template electroplating method and brings a manufacturing simplification from the complicated machining to the repetition of template-assisted planar deposition in forming a three-dimensional object. The key of the method is to ensure deposit surface quality, especially the uniformity, and to reduce the intensity and possibility of the boundary effect of a locally excessive deposition at the special position within the electric and flow field. A group of copper parts with section size 30mm × 30 mm, thickness 7 mm and with well mechanical property were produced when 0. 3 millimeters-thick epoxy template and 4 - 6 A/dm^2current density were applied at 40℃.
出处
《机械科学与技术》
CSCD
北大核心
2009年第2期159-162,共4页
Mechanical Science and Technology for Aerospace Engineering
基金
南京航空航天大学科研创新基金项目(Y0605-052)资助
关键词
先进制造
电沉积
叠层
模板
advanced fabrication
electro-deposition
laminated template
