摘要
为了研究激光选区熔化技术制备的航空钛合金结构件在切削加工过程中切削力的变化情况,通过设计正交试验对制备的TC4钛合金增材成形件进行铣削加工,采用极差分析、灰色关联度分析以及优势分析探究了铣削工艺参数对铣削力变化的影响,并对比钛合金锻件的切削加工性能。结果表明:钛合金增材成形件与其锻件的铣削力都随铣削深度、铣削宽度、进给速度的增大而增大,随主轴转速的增大而减小;铣削深度对铣削力的影响最大,铣削宽度次之,主轴转速和进给速度的影响最小;最优铣削参数组合均为铣削深度1 mm,铣削宽度1 mm,主轴转速3200 r/min,进给速度70 mm/min;增材成形件的铣削力与锻件相比受铣削深度的影响程度更小,更容易切削加工。
In order to study the variation of cutting force of the structure of aviation titanium alloy prepared by selective laser melting technology in the cutting process,we have designed orthogonal test based on milling processing of TC4 titanium alloy with added mateiral forming parts.Through range analysis method,grey correlation analysis method and advantage analysis method,we have explored the changes on milling process parameters on the milling force strength,and compared the machinability of titanium alloy forgings.The results show that the milling force increases with the increase of milling depth,milling width and feed speed,and decreases with the increase of spindle speed.Milling depth has the greatest influence on milling force,followed by milling width,and spindle speed and feed speed are very small.The optimal milling parameter combinations are:milling depth 1 mm,milling width 1 mm,spindle speed 3200 r/min,feed speed 70 mm/min.The milling force of the forming part with added materials is less affected by the milling depth than that of the forging part and is easier to be machined.
作者
鲍骏
白海清
安熠蔚
任礼
秦望
BAO Jun;BAI Hai-qing;AN Yi-wei;REN Li;QIN Wang(School of Mechanical Engineering,Shaanxi University of Technology,Hanzhong 723000,China;Shaanxi Key Laboratory of Industrial Automation,Hanzhong 723000,China)
出处
《陕西理工大学学报（自然科学版）》
2020年第6期7-16,共10页
Journal of Shaanxi University of Technology:Natural Science Edition
关键词
激光选区熔化
增材成形
TC4钛合金
正交
铣削力
selective laser melting
forming with added materials
TC4 titanium alloy
orthogonal
milling force
