不同形貌微织构钛合金切削刀具性能比较研究  

Comparative study on the performance of micro texture tools with different morphologies in cutting titanium alloys

作　　者：祁志旭 陈兴媚 刘洋 王利 QI Zhixu;CHEN Xingmei;LIU Yang;WANG Li(Institute of Intelligent Manufacturing,Guangdong Technology College,Zhaoqing,Guangdong 526114,China)

机构地区：[1]广东理工学院智能制造学院,广东肇庆526114

出　　处：《河北工业科技》2023年第1期10-17,共8页Hebei Journal of Industrial Science and Technology

基　　金：广东理工学院“创新强校工程”科研计划项目(2021GKJZK007)。

摘　　要：为了提升钛合金切削刀具的切削性能,设计了3种不同形貌的微织构刀具,并基于不同切削参数,利用有限元软件对钛合金切削过程进行模拟仿真。对比研究了钛合金切削过程中切削力、切削温度和刀具磨损等主要切削性能要素的变化规律。研究结果表明:在设定的切削参数下,微织构刀具的切削温度和刀具磨损均低于无织构刀具,但其切削力略高于无织构刀具。微织构刀具对切削温度和刀具磨损分布的影响优于无织构刀具。其中V形凹槽织构刀具(T-V)将切削温度降低了25%~37%,刀具磨损降低了27%~39%,综合评价表明其综合切削性能优于T-H,T-N和T-K 3种刀具。不同形貌的微织构刀具的研究可提升刀具的切削性能,为微织构刀具设计提供理论参考。In order to improve the cutting performance of cutting titanium alloy,micro-texture tools with different morphologies were designed.Based on different cutting parameters,the cutting process of titanium alloy was simulated by finite element software.The changing rules of key cutting performance factors,such as cutting force,cutting temperature and tool wear during titanium alloy cutting were studied.The results show that the cutting temperature and tool wear of the micro-texture tools are lower than those of the untextured tools,but the cutting force of micro-texture tools is slightly higher than that of the untextured tools.The influence of micro textured tools on cutting temperature and tool wear distribution is better than that of the untextured tools.Tool of T-V reduces the cutting temperature by 25%~37%.The tool wear is reduced by 27%~39%.The comprehensive cutting performance of T-V is better than that of T-H,T-N and T-K tools by analytic hierarchy process.The research of micro-textured tools with different morphologies can improve the cutting performance of tools,and provides a theoretical reference for the textured tools.

关 键 词：切削刀具 微织构刀具 钛合金 有限元 层次分析 

分 类 号：TG506.9[金属学及工艺—金属切削加工及机床]