基于3D打印技术的微沟槽金属铜电铸工艺  

Fabrication of microgrooves by copper electroforming based on 3D printing technology

作　　者：吴媛媛 钱双庆[1] 曹红蓓[1] 章勇[2] 张华[1] 黄明宇[1] WU Yuan-yuan;QIAN Shuang-qing;CAO Hong-bei;ZHANG Yong;ZHANG Hua;HUANG Ming-yu(School of Mechanical Engineering,Nantong University,Nantong 226019,China)

机构地区：[1]南通大学机械工程学院,江苏南通226019 [2]沙洲职业工学院,江苏张家港215600

出　　处：《电镀与涂饰》2019年第20期1075-1080,共6页Electroplating & Finishing

基　　金：国家自然科学青年基金（51305212）;江苏高校“青蓝工程”资助（苏教师[2017]15号）

摘　　要：提出采用3D打印技术与电铸技术相结合的工艺方法制作微沟槽。首先利用3D打印技术制备具有微沟槽结构的基体,经表面导电处理后制成电铸阴极,然后采用电铸技术加工微沟槽。通过正交试验考察了加工间距、阴极电流密度、搅拌速率、温度等工艺参数对铸层显微硬度的影响,加工出了形貌较好的深为547μm、宽为355μm的微沟槽。通过极差分析得出阴极电流密度是影响铸层硬度的最主要因素。获得最大硬度的最佳工艺条件为:加工间距40 mm,阴极电流密度6 A/dm2,搅拌速率600 r/min,温度26℃。A process combining 3D printing and electroforming technologies was proposed to fabricate micro-grooves.Firstly,the substrate with micro-groove structure was prepared by 3D printing technology,and then was made into a cathode after surface conduction treatment.The micro-grooves were finally fabricated by electroforming.The effects of processing gap,cathodic current density,stirring rate,and temperature on the microhardness of electroformed coating were studied by orthogonal test.Three-dimensional micro-grooves with a height of 547μm and a width of 355μm were fabricated by this method.The experimental results showed that the cathodic current density is the most important factor affecting the hardness of the electroformed coating.The optimal process conditions to maximize the hardness were determined as follows:processing gap 40 mm,cathodic current density 6 A/dm2,stirring rate 600 r/min,and temperature 26℃.

关 键 词：微沟槽 电铸 三维打印 工艺参数 

分 类 号：TQ153.2[化学工程—电化学工业]