Inconel718切削过程的有限元仿真研究  

Study on High Speed Cutting Process of Inconel 718 Based on Finite Element Method

作　　者：黄雪红[1] 

机构地区：[1]滨州职业学院电气工程学院,山东滨州256603

出　　处：《组合机床与自动化加工技术》2011年第6期98-101,106,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金项目(50575126)

摘　　要：为了研究高速切削Inconel 718的切削机理,应用有限元软件DEFORM-2D模拟了高速切削Inconel 718的切削过程,分析了切削速度对切削温度、切削力和剪切角的影响规律以及切削过程中刀具和工件的应力场分布情况。仿真结果表明:切削力随着刀具的切入先迅速线性增大,然后趋于稳定,切削力随切削速度的增大呈下降趋势。切削温度的最高点总是位于前刀面上距离刀刃不远的地方。最高切削温度随着切削速度的增大而增高。最大刀具等效应力出现在前刀面上切削刃的周围,工件上最大等效应力出现在第一变形区。切削过程中,剪切角随切削速度的增加而增大。In order to study the mechanism of high speed cutting Inconel 718,high speed cutting of Inconel 718 is simulated using finite element software DEFORM-2D.The effects of cutting speed on cutting temperature,cutting force and shear angle as well as the stress distribution of tool and workpiece during cutting process are analyzed.Finite element simulation results show that cutting force increases linearly at first,and then stabilized.The cutting force showed a downward trend with the cutting speed increases.The highest cutting temperature point is always at face near the cutting edge.The maximum cutting temperature increases with the increase in cutting speed.The maximum tool effective stress is located in the flank face near cutting edge and the shear deformation zone on the workpiece.Shear angle increases with the increase in cutting speed.

关 键 词：INCONEL718 有限元仿真 切削速度 应力场分布 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]