模具工作带形状对半轴套管塑性成形晶粒尺寸的影响
|
摘要
为研究半轴套管热挤压变形的晶粒尺寸变化,根据动态再结晶理论,建立了材料的动态再结晶模型,并通过Deform-3D有限元分析软件研究了半轴套管在模具工作带形状不同的情况下,材料晶粒尺寸在热挤压变形过程中的变化规律。结果表明:在直线、圆弧和样条曲线三种工作带形状下进行的挤压成形,晶粒尺寸细化程度不同,圆弧型工作带模具使得材料晶粒尺寸更加细小匀称,其结果对半轴套性能和质量的提高有着重要意义。
To study the change of grain size for the hot extrusion deformation of half shaft bushing,according to the dynamic recrystallization theory,the paper establishes the dynamic recrystallization model of material and uses the finite element analysis software Deform-3 D to study the shape of half shaft bushing in the mold work under the condition of different variation of hot extrusion deformation process of material grain size. The results show that while doing the extrusion in the shape of straight line and circular arc and spline curve with three kinds of work,the grain sizes are at different levels of detail. The circular mold material makes grain size smaller and more symmetrical. The result has important significance on the improvement of performance and quality of the sleeve.
To study the change of grain size for the hot extrusion deformation of half shaft bushing,according to the dynamic recrystallization theory,the paper establishes the dynamic recrystallization model of material and uses the finite element analysis software Deform-3 D to study the shape of half shaft bushing in the mold work under the condition of different variation of hot extrusion deformation process of material grain size. The results show that while doing the extrusion in the shape of straight line and circular arc and spline curve with three kinds of work,the grain sizes are at different levels of detail. The circular mold material makes grain size smaller and more symmetrical. The result has important significance on the improvement of performance and quality of the sleeve.
引文
[1]郭运强,张克实,耿小亮,等.晶体塑性模型在单晶铜低周疲劳行为中的应用[J].机械强度,2009(02):276-281.GUO Yun Qiang,ZHANG Ke Shi,GENG Xiao Liang,et al.application of crystal plasticity theory for modelling low cyclic fatigue of single crystal copper[J].Journal of Mechanical Strength,2009(02):276-281(In Chinese).
[2]肖艳红,郭成,郭小艳.7A04铝合金热变形过程微观组织演变[J].塑性工程学报,2012,(03):94-97.XIAO Yan Hong,GUO Cheng,GUO Xiao Yan.Microstructure evolution of 7A04 during hot deformation process[J].Journal of Plasticity Engineering,2012(03):94-97(In Chinese).
[3]孙宝寿,彭文飞,束学道,等.高颈法兰精密轧制成形微观组织演变研究[J].热加工工艺,2014(19):87-90.SUN BaoShou,PENG Wen Fei,SHU Xue Dao,et al.Microstructure evolution of high-neck flange during precision rolling[J].Hot Working Technology,2014(19):87-90(In Chinese).
[4]汪泽轩,何涛,杨勇,等.T91钢楔横轧成形微观组织演变模拟分析[J].热加工工艺,2016,(09):137-140+144.WANG Ze Xuan,HE Tao,YANG Yong,et al.Microstructure evolution simulation analysis of T91 steel formed by cross wedge rolling[J].Hot Working Technology,2016(09):137-140+144.
[5]秦学枫,刘桥求,陈强,等.D8轴头套管成形工艺改进[J].热加工工艺,2010,39(23):126-128.QIN XueFeng,LIU Qiao Qiu,CHEN Qiang et al.Improvement of forming process for D8 shaft sleeve[J].Hot Working Technology,2010,39(23):126-128(In Chinese).
[6]周结魁,薛克敏,徐迎强,等.半轴套管热挤压成形数值模拟与实验[J].塑性工程学报,2011,18(6):15-21.ZHOU Jie Kui,XUE Ke Min,XU YingQiang,et al.Numerical simulation and experimental study on hot extrusion forming of half shaft bushing[J].Journal of Plasticity Engineering,2011,18(6):15-21(In Chinese).
[7]张如华,王沁军,王海华,等.凸缘远离大端的半轴套管成形工艺实验研究[J].锻压技术,2008,33(6):18-21.ZHANG RuHua,WANG QinJun,WANG Hai Hua,et al.Experimental research of forming process for axle shaft sleeve with flange far from big end[J].Forging&Stamping Technology,2008,33(6):18-21(In Chinese).
[8]陈伟,陈丹,李炳,等.基于DEFORM的半轴套管复合鐓挤模拟分析[J].铸造技术,2016,37(8):1727-1729.CHEN Wei,CHEN Dan,LI Bing,et al.Simulation analysis on composite upsetting extrusion for half shaft bushing based on DEFORM[J].Foundry Technology,2016,37(8):1727-1729(In Chinese).
[9]焦宪友,关小军,刘运腾,等.基于元胞自动机法的晶粒长大模拟[J].山东大学学报(工学版),2005,35(6):24-28JIAO Xian You,GUAN Xiao Jun,LIU YunTeng,et al.Simulation of grain growth based on cellular automata method[J].Journal of Shandong University(Engineering Science Edition),2005,35(6):24-28(In Chinese).
[10]陈飞,崔振山,董定乾.微观组织演变元胞自动机模拟研究进展[J].机械工程学报,2015,51(4):30-39.CHEN Fei,CUI Zhen Shan,DONG Ding Qian.Research Progress in Cellular Automaton Simulation of Microstructure Evolution[J].Journal of Mechanical Engineering,2015,51(4):30-39(In Chinese).
[11]卢瑜,张立文,邓小虎等.纯镍动态再结晶过程的元胞自动机模型[J].塑性工程学报,2008,15(2):70-75.LU Yu,ZHANG Li Wen,DENG Xiao Hu et al.Modeling dynamic recrystallization of pure nickel by cellular automaton[J].Journal of Plasticity Engineering,2008,15(2):70-75.
[12]刘超.基于DEFORM-3D的7050铝合金大锻件成形工艺与晶粒尺寸演化研究[D].长沙:中南大学,2009:21-23.LIU Chao.Study on the forming process and grain size evolution of7050 aluminum alloy forgings based on DEFORM-3D[D].Changsha:Central South University,2009:21-23(In Chinese).
[2]肖艳红,郭成,郭小艳.7A04铝合金热变形过程微观组织演变[J].塑性工程学报,2012,(03):94-97.XIAO Yan Hong,GUO Cheng,GUO Xiao Yan.Microstructure evolution of 7A04 during hot deformation process[J].Journal of Plasticity Engineering,2012(03):94-97(In Chinese).
[3]孙宝寿,彭文飞,束学道,等.高颈法兰精密轧制成形微观组织演变研究[J].热加工工艺,2014(19):87-90.SUN BaoShou,PENG Wen Fei,SHU Xue Dao,et al.Microstructure evolution of high-neck flange during precision rolling[J].Hot Working Technology,2014(19):87-90(In Chinese).
[4]汪泽轩,何涛,杨勇,等.T91钢楔横轧成形微观组织演变模拟分析[J].热加工工艺,2016,(09):137-140+144.WANG Ze Xuan,HE Tao,YANG Yong,et al.Microstructure evolution simulation analysis of T91 steel formed by cross wedge rolling[J].Hot Working Technology,2016(09):137-140+144.
[5]秦学枫,刘桥求,陈强,等.D8轴头套管成形工艺改进[J].热加工工艺,2010,39(23):126-128.QIN XueFeng,LIU Qiao Qiu,CHEN Qiang et al.Improvement of forming process for D8 shaft sleeve[J].Hot Working Technology,2010,39(23):126-128(In Chinese).
[6]周结魁,薛克敏,徐迎强,等.半轴套管热挤压成形数值模拟与实验[J].塑性工程学报,2011,18(6):15-21.ZHOU Jie Kui,XUE Ke Min,XU YingQiang,et al.Numerical simulation and experimental study on hot extrusion forming of half shaft bushing[J].Journal of Plasticity Engineering,2011,18(6):15-21(In Chinese).
[7]张如华,王沁军,王海华,等.凸缘远离大端的半轴套管成形工艺实验研究[J].锻压技术,2008,33(6):18-21.ZHANG RuHua,WANG QinJun,WANG Hai Hua,et al.Experimental research of forming process for axle shaft sleeve with flange far from big end[J].Forging&Stamping Technology,2008,33(6):18-21(In Chinese).
[8]陈伟,陈丹,李炳,等.基于DEFORM的半轴套管复合鐓挤模拟分析[J].铸造技术,2016,37(8):1727-1729.CHEN Wei,CHEN Dan,LI Bing,et al.Simulation analysis on composite upsetting extrusion for half shaft bushing based on DEFORM[J].Foundry Technology,2016,37(8):1727-1729(In Chinese).
[9]焦宪友,关小军,刘运腾,等.基于元胞自动机法的晶粒长大模拟[J].山东大学学报(工学版),2005,35(6):24-28JIAO Xian You,GUAN Xiao Jun,LIU YunTeng,et al.Simulation of grain growth based on cellular automata method[J].Journal of Shandong University(Engineering Science Edition),2005,35(6):24-28(In Chinese).
[10]陈飞,崔振山,董定乾.微观组织演变元胞自动机模拟研究进展[J].机械工程学报,2015,51(4):30-39.CHEN Fei,CUI Zhen Shan,DONG Ding Qian.Research Progress in Cellular Automaton Simulation of Microstructure Evolution[J].Journal of Mechanical Engineering,2015,51(4):30-39(In Chinese).
[11]卢瑜,张立文,邓小虎等.纯镍动态再结晶过程的元胞自动机模型[J].塑性工程学报,2008,15(2):70-75.LU Yu,ZHANG Li Wen,DENG Xiao Hu et al.Modeling dynamic recrystallization of pure nickel by cellular automaton[J].Journal of Plasticity Engineering,2008,15(2):70-75.
[12]刘超.基于DEFORM-3D的7050铝合金大锻件成形工艺与晶粒尺寸演化研究[D].长沙:中南大学,2009:21-23.LIU Chao.Study on the forming process and grain size evolution of7050 aluminum alloy forgings based on DEFORM-3D[D].Changsha:Central South University,2009:21-23(In Chinese).