标题：
Abrasive-assisted Nickel Electroforming Process with Moving Cathode
点击次数：
所属单位：
机电学院
发表刊物：
CHINESE JOURNAL OF MECHANICAL ENGINEERING
关键字：
Nickel electroforming Abrasive Compound motion Weldability
摘要：
In traditional electroforming process for revolving parts with complex profiles, the drawbacks on surface of deposits, such as pinholes and nodules, will lead to varying physical and mechanical properties on different parts of electroformed components. To solve the problem, compositely moving cathode is employed in abrasive-assisted electroforming of revolving parts with complicated profiles. The cathode translates and rotates simultaneously to achieve uniform friction effect on deposits without drawbacks. The influences of current density and translation speed on the microstructure and properties of the electroformed nickel layers are investigated. It is found that abrasive-assisted electroforming with compound cathode motion can effectively remove the pinholes and nodules, positively affect the crystal nucleation, and refine the grains of layer. The increase of current density will lead to coarse microstructure and lower micro hardness, from 325 HV down to 189 HV. While, faster translational linear speed produces better surface quality and higher micro hardness, from 236 HV up to 283 HV. The weld-ability of the electroformed layers are also studied through the metallurgical analysis of welded joints between nickel layer and 304 stainless steel. The electrodeposited nickel layer shows fine performance in welding. The novel compound motion of cathode promotes the mechanical properties and refines the microstructure of deposited layer.
ISSN号：
1000-9345
是否译文：
否
发表时间：
2017-03-01
合写作者：
Ren, Jianhua,Xia, Chunqiu,曲宁松,朱荻
通讯作者：
朱增伟
发表时间：
2017-03-01
学位：工学博士学位
职称：教授
所在单位：机电学院