Research effects of the factor on micro hardness of Ni composite coating on inserted-blade milling cutter


Ly Viet Anh, Truong Thi Thu Huong, and Nguyen Hong Quang*


Faculty of Mechanical, Electrical, Electronics Technology, Thai Nguyen University of Technology, Thai Nguyen City, Vietnam.

Corresponding Author Email: quang.nguyenhong@tnut.edu.vn

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

This article aims to study influence of controllable factors on micro hardness of Ni composite coatings. The experimental plan was set on Taguchi’s techniques with three levels of three parameters: stirring speed, current density and temperature of electrolyte. Then, the obtained results was treated by the analysis of variance (ANOVA). The results show that stirring speed and current density are two significant factors which impact the most on the hardness of Ni composite coatings while temperature is not much affected. This research also gives a set of optimal values of these factors and it can increase two times of the micro hardness of Ni composite coatings when comparing with Ni coatings.