张宏

(教授)

 硕士生导师
学位:博士
性别:女
毕业院校:大连理工大学
所在单位:机械工程学院
电子邮箱:jxzh@dlut.edu.cn

The influence factors and prediction of curve surface roughness in micro-milling nickel-based superalloy

发表时间:2019-03-12 点击次数:

论文名称:The influence factors and prediction of curve surface roughness in micro-milling nickel-based superalloy
论文类型:会议论文
收录刊物:CPCI-S
关键字:Ball-end mill; Micro-milling; Surface roughness; Curved surface; Inconel 718
摘要:Micro structure/parts during their useful life are significantly influenced by surface roughness quality. Machining of curve shapes is a necessity in micro-milling process. However, surface roughness in micro-milling curved surfaces is more complex, and few studies on the influence factors and prediction of the micro-milled curve surface roughness in micro-milling nickel-based superalloy have been done. The purpose of this paper is to study the effects of spindle speed, the radius of ball-end mill, axial cutting depth, and feed per tooth on the curved surface roughness in micro-milling Inconel 718 process based on single factor and orthogonal experiments. Utilizing the least square method, we build a surface roughness prediction model of micro-milled Inconel 718. Finally, experiments are conducted to verify the accuracy of the developed prediction model. The results indicate that the maximum relative error is 10.68%, and the mean relative error is 8.04%, which prove that the prediction model is correct. The work can provide a reference for selection of cutting parameters in micro-milling Inconel 718.
发表时间:2018-01-01