Ti6A14V高效切削加工中绝热剪切带内微观组织演变及其形成机制
|
摘要
为了给钛合金的切削加工工艺制定提供参考,对Ti6A14V高效切削加工中绝热剪切带内微观组织演变及其形成机制进行研究。将Ti6Al4V看作被切削材料,在不同情况下完成切削,选择有代表性的切屑当成制作金相的样本,给出切削实验工艺参数。选用蔡司金相显微镜对金相组织进行观察,通过Digimizer对锯齿金相的齿距、自由表面、带倾角和带宽进行测量,以体现锯齿化程度。针对金相样本,通过绝热剪切带内微观组织演变方法研究了切削速度和刀具前角对切屑的影响;以及进给速度对锯齿成形的影响。分析了Ti6Al4V切屑形成机制。结果表明,在切削速度与进给速度逐渐增加,刀具前角从正值变化至负值的情况下,Ti6Al4V切削锯齿化程度增强;在切削速度、进给速度增加,刀具前角降低的情况下,绝热剪切程度增强;Ti6Al4V切削形成符合热(黏)塑性失稳机制。
In order to provide a reference for the formulation of cutting process for titanium alloy,the microstructure evolution and formation mechanism of adiabatic shear band in Ti6A14V high efficiency cutting were studied. Taking Ti6Al4V as cutting material,cutting was completed under different conditions,and representative chips were selected as metallographic samples. The cutting experimental parameters were given. Zeiss metallographic microscope was used to observe the metallographic structure. The tooth pitch,free surface,band inclination and bandwidth were measured by Digimizer to reflect the degree of sawtooth. For metallographic samples,the effect of cutting speed and tool rake angle on chip formation and feed rate on sawtooth forming were studied by means of microstructure evolution in adiabatic shear band. The cutting mechanism of Ti6Al4V was analyzed. The results show that the sawtooth degree of Ti6Al4V cutting increases with the increase of cutting speed and feed speed and the change of tool rake angle from positive value to negative value system.
In order to provide a reference for the formulation of cutting process for titanium alloy,the microstructure evolution and formation mechanism of adiabatic shear band in Ti6A14V high efficiency cutting were studied. Taking Ti6Al4V as cutting material,cutting was completed under different conditions,and representative chips were selected as metallographic samples. The cutting experimental parameters were given. Zeiss metallographic microscope was used to observe the metallographic structure. The tooth pitch,free surface,band inclination and bandwidth were measured by Digimizer to reflect the degree of sawtooth. For metallographic samples,the effect of cutting speed and tool rake angle on chip formation and feed rate on sawtooth forming were studied by means of microstructure evolution in adiabatic shear band. The cutting mechanism of Ti6Al4V was analyzed. The results show that the sawtooth degree of Ti6Al4V cutting increases with the increase of cutting speed and feed speed and the change of tool rake angle from positive value to negative value system.
引文
1索涛,汪存显,杭超,等.材料动态变形中的绝热剪切带研究现状[J].机械科学与技术,2016,35(1):1-9Suo Tao,Wang Cunxian,Hang Chao,et al. The research status of adiabatic shear band in dynamic deformation[J]. Mechanical Science and Technology for Aerospace Engineering,2016,35(1):1-9
2 王军,黄杰飞,程勇.基于大数据处理的农业气象灾害分类模型[J].计算机仿真,2017,34(5):353-356Wang Jun,Huang Jiefei,Cheng Yong. Classification model of agrometeorological disaster based on the big data processing[J]. Computer Simulation,2017,34(5):353-356
3 杨柳青,杨延清,陈爽,等. TC4钛合金绝热剪切带的微观组织及织构[J].金属热处理,2014,39(11):15-19Yang Liuqing,Yang Yanqing,Chen Shuang,et al. Microstructure and texture of adiabatic shear band in TC4 titanium alloy[J]. Heat Treatment of Metals,2014,39(11):15-19
4 Mao P,Liu C,Liu Z,et al. Microstructure evolution of adiabatic shear bands in AZ31 magnesium alloy[J]. Rare Metal Materials&Engineering,2015,44(5):1181-1184
5 何红玉,熊毅,李鹏燕,等.高应变速率下共析珠光体钢的微观组织演变[J].材料热处理学报,2014,35(9):55-59He Hongyu,Xiong Yi,Li Pengyan,et al. Microstructure evolution of eutectoid pearlitic steel under high strain rate deformation[J]. Transactions of Materials and Heat Treatment,2014,35(9):55-59
6 梁娟.多元化全民健身效益指数异构数据挖掘模型[J].科技通报,2015,31(8):108-110Liang Juan. Heterogeneous data mining model of national fitness benefit index diversification[J]. Bulletin of Science and Technology,2015,31(8):108-110
7 蔡志芳,纪箴,崔景毅,等.粉末冶金60Al-30Fe-10Bi合金在高速冲击下的变形行为与微观组织演化[J].粉末冶金技术,2017,35(5):352-357Cai Zhifang,Ji Zhen,Cui Jingyi,et al. Deformation behaviors and microstructure evolution of 60Al-30Fe-10Bi alloy under high speed impact[J]. Powder Metallurgy Technology,2017,35(5):352-357
8 胡剑波,刘端,李飞,等.惯性测量数据在线均值均衡处理方法研究与检验[J].计算机测量与控制,2014,22(2):598-600Hu Jianbo,Liu Duan,Li Fei,et al. Reaearch and test of an on line average balance process method of inertial measurement[J]. Computer Measurement&Control,2014,22(2):598-600
9 毛萍莉,孙庆海,刘正,等.微观组织状态对Ti-6Al-4V合金动态力学性能和绝热剪切敏感性的影响[J].稀有金属,2016,40(12):1207-1213Mao Pingli,Sun Qinghai,Liu Zheng,et al. Mechanical properties and adiabatic shear sensitivity of Ti-6Al-4V alloy with different microstructures[J]. Chinese Journal of Rare Metals,2016,40(12):1207-1213
10 Wang B,Li J,Sun J,et al. Adiabatic shear bands in Ti-6Al-4V alloy with lamellar microstructure[J]. Journal of Materials Engineering&Performance,2014,23(5):1896-1903
11 贾琳,王理林,申洁楠,等.聚乙烯醇水溶液二维定向凝固的微观组织演化[J].物理学报,2017,66(19):228-234Jia Lin, Wang Lilin,Shen Jienan,et al. Microstructure evolution of polyvinyl alcohol aqueoussolution solidated in two-dimensional direction[J]. Acta Physica Sinica,2017,66(19):228-234
12 苟文博,于强.基于My SQL的数据管理系统设计与实现[J].电子设计工程,2017,25(6):62-65Gou Wenbo,Yu Qiang. Design and implementation of data management system based on My SQL[J]. Electronic Design Engineering,2017,25(6):62-65
13 周蕾,史庆南,王军丽.异步累积叠轧制备超细晶纯铜微观组织演化规律及细化机制[J].航空材料学报,2014,34(5):49-54Zhou Lei,Shi Qingnan,Wang Junli. Microstructure evolution and refinement mechanism of ultra-fine copper prepared by asymmetrical accumulative roll bonding[J]. Journal of Aeronautical Materials,2014,34(5):49-54
14 葛小宁,刘连光,陈剑,等.轨道电路的地磁感应电流监测数据分析[J].科学技术与工程,2017,17(12):103-107Ge Xiaoning,Liu Lianguang,Chen Jian,et al. Analysis of the geomagnetically induced crrent monitored in the track circuit[J]. Science Technology and Engineering,2017,17(12):103-107
15 Wang B,Liu Z,Wang B,et al. Microstructural evolution in adiabatic shear band in the ultrafine-grained austenitic stainless steel processed by multi-axial compression[J]. Materials Science&Engineering A,2014,611(9):100-107
2 王军,黄杰飞,程勇.基于大数据处理的农业气象灾害分类模型[J].计算机仿真,2017,34(5):353-356Wang Jun,Huang Jiefei,Cheng Yong. Classification model of agrometeorological disaster based on the big data processing[J]. Computer Simulation,2017,34(5):353-356
3 杨柳青,杨延清,陈爽,等. TC4钛合金绝热剪切带的微观组织及织构[J].金属热处理,2014,39(11):15-19Yang Liuqing,Yang Yanqing,Chen Shuang,et al. Microstructure and texture of adiabatic shear band in TC4 titanium alloy[J]. Heat Treatment of Metals,2014,39(11):15-19
4 Mao P,Liu C,Liu Z,et al. Microstructure evolution of adiabatic shear bands in AZ31 magnesium alloy[J]. Rare Metal Materials&Engineering,2015,44(5):1181-1184
5 何红玉,熊毅,李鹏燕,等.高应变速率下共析珠光体钢的微观组织演变[J].材料热处理学报,2014,35(9):55-59He Hongyu,Xiong Yi,Li Pengyan,et al. Microstructure evolution of eutectoid pearlitic steel under high strain rate deformation[J]. Transactions of Materials and Heat Treatment,2014,35(9):55-59
6 梁娟.多元化全民健身效益指数异构数据挖掘模型[J].科技通报,2015,31(8):108-110Liang Juan. Heterogeneous data mining model of national fitness benefit index diversification[J]. Bulletin of Science and Technology,2015,31(8):108-110
7 蔡志芳,纪箴,崔景毅,等.粉末冶金60Al-30Fe-10Bi合金在高速冲击下的变形行为与微观组织演化[J].粉末冶金技术,2017,35(5):352-357Cai Zhifang,Ji Zhen,Cui Jingyi,et al. Deformation behaviors and microstructure evolution of 60Al-30Fe-10Bi alloy under high speed impact[J]. Powder Metallurgy Technology,2017,35(5):352-357
8 胡剑波,刘端,李飞,等.惯性测量数据在线均值均衡处理方法研究与检验[J].计算机测量与控制,2014,22(2):598-600Hu Jianbo,Liu Duan,Li Fei,et al. Reaearch and test of an on line average balance process method of inertial measurement[J]. Computer Measurement&Control,2014,22(2):598-600
9 毛萍莉,孙庆海,刘正,等.微观组织状态对Ti-6Al-4V合金动态力学性能和绝热剪切敏感性的影响[J].稀有金属,2016,40(12):1207-1213Mao Pingli,Sun Qinghai,Liu Zheng,et al. Mechanical properties and adiabatic shear sensitivity of Ti-6Al-4V alloy with different microstructures[J]. Chinese Journal of Rare Metals,2016,40(12):1207-1213
10 Wang B,Li J,Sun J,et al. Adiabatic shear bands in Ti-6Al-4V alloy with lamellar microstructure[J]. Journal of Materials Engineering&Performance,2014,23(5):1896-1903
11 贾琳,王理林,申洁楠,等.聚乙烯醇水溶液二维定向凝固的微观组织演化[J].物理学报,2017,66(19):228-234Jia Lin, Wang Lilin,Shen Jienan,et al. Microstructure evolution of polyvinyl alcohol aqueoussolution solidated in two-dimensional direction[J]. Acta Physica Sinica,2017,66(19):228-234
12 苟文博,于强.基于My SQL的数据管理系统设计与实现[J].电子设计工程,2017,25(6):62-65Gou Wenbo,Yu Qiang. Design and implementation of data management system based on My SQL[J]. Electronic Design Engineering,2017,25(6):62-65
13 周蕾,史庆南,王军丽.异步累积叠轧制备超细晶纯铜微观组织演化规律及细化机制[J].航空材料学报,2014,34(5):49-54Zhou Lei,Shi Qingnan,Wang Junli. Microstructure evolution and refinement mechanism of ultra-fine copper prepared by asymmetrical accumulative roll bonding[J]. Journal of Aeronautical Materials,2014,34(5):49-54
14 葛小宁,刘连光,陈剑,等.轨道电路的地磁感应电流监测数据分析[J].科学技术与工程,2017,17(12):103-107Ge Xiaoning,Liu Lianguang,Chen Jian,et al. Analysis of the geomagnetically induced crrent monitored in the track circuit[J]. Science Technology and Engineering,2017,17(12):103-107
15 Wang B,Liu Z,Wang B,et al. Microstructural evolution in adiabatic shear band in the ultrafine-grained austenitic stainless steel processed by multi-axial compression[J]. Materials Science&Engineering A,2014,611(9):100-107