不同送进量对皮尔格轧制成形的影响及验证
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摘要
皮尔格冷轧无缝钢管过程中为了获得性能较好的成品需要选择合理的送进量数值,本文以冷轧304不锈钢为研究对象,借助有限元模拟软件对不同送进量下的皮尔格冷轧过程进行了完整的仿真,对比分析了送进量对金属流动速度、轧制力、等效应力、残余应力及管材回弹的影响规律.结果表明轧制过程中孔型背脊和与轧辊接触的孔型侧壁处管材金属流动速度随送进量增加而增加,轧制力、等效应力及残余应力均随送进量的增加而增大,并且送进量的增大还会显著增加管材的回弹量.借助试验轧机对不同送进量下皮尔格冷轧管进行轧制试验,对试验得到的管材进行尺寸和残余应力测量,测量结果与有限元仿真结果基本一致,为皮尔格轧制过程不同送进量的选择提供依据.
To achieve better performance in finished cold-pilger rolled stainless steel tubes,it is critical to select an appropriate feed range. In this study,cold-rolling 304 stainless steel tube was used as the research object to simulate the entire cold-pilgering process at different feed ranges. Using finite element software,it was comparatively analyzed that the feed range effects on the metal flow rate,rolling force,equivalent stress,residual stress,and piping spring-back. The results indicate that the metal flow rate increases with an increased feed range in the groove bottom and the contact of the groove flank with the roll. In addition,the rolling force,equivalent stress and residual stress increase with increases in the feed range,increments of which will increase the spring-back of the piping. Rolling tests at different feed ranges were performed with the help of experimental rolling mill and it is found that test results are roughly identical to the simulation results. experimental test results regarding the dimensions and residual stress of the piping provide evidence for optimizing the selection of the feed range in pilger rolling.
To achieve better performance in finished cold-pilger rolled stainless steel tubes,it is critical to select an appropriate feed range. In this study,cold-rolling 304 stainless steel tube was used as the research object to simulate the entire cold-pilgering process at different feed ranges. Using finite element software,it was comparatively analyzed that the feed range effects on the metal flow rate,rolling force,equivalent stress,residual stress,and piping spring-back. The results indicate that the metal flow rate increases with an increased feed range in the groove bottom and the contact of the groove flank with the roll. In addition,the rolling force,equivalent stress and residual stress increase with increases in the feed range,increments of which will increase the spring-back of the piping. Rolling tests at different feed ranges were performed with the help of experimental rolling mill and it is found that test results are roughly identical to the simulation results. experimental test results regarding the dimensions and residual stress of the piping provide evidence for optimizing the selection of the feed range in pilger rolling.
引文
[1]Zhang H Q,Wang X F,Wei B L,et al.Effect of tooling design on the cold pilgering behavior of zircaloy tube.Int J Adv Manuf Technol,2017:1
[2]Pociecha D,Boryczko B,Osika J,et al.Analysis of tube deformation process in a new pilger cold rolling process.Arch Civ Mech Eng,2014,14(3):376
[3]Abe H,Iwamoto T,Yamamoto Y,et al.Dimensional accuracy of tubes in cold pilgering.J Mater Process Technol,2016,231:277
[4]Gurao N P,Akhiani H,Szpunar J A.Pilgering of Zircaloy-4:experiments and simulations.J Nucl Mat,2014,453(1):158
[5]Lodej B,Niang K,Montmitonnet P,et al.Accelerated 3D FEM computation of the mechanical history of the metal deformation in cold pilgering of tubes.J Mat Process Technol,2006,177(1):188
[6]Abe H,Furugen M.Method of evaluating workability in cold pilgering.J Mat Process Technol,2012,212(8):1687
[7]Abe H,Nomura T,Kubota Y.Lubrication of tube in cold pilgering.J Mat Process Technol,2014,214(8):1627
[8]Liu J L,Zeng W D,Du Z L,et al.The influence rule of rolling process parameters on metal flow and forming load of TA18 alloy tube during cold rolling.Titanium Ind Prog,2015,32(3):21(刘江林,曾卫东,杜子龙,等.冷轧工艺参数对TA18钛合金管材金属流动及成形载荷的影响规律.钛工业发展,2015,32(3):21)
[9]Huang L,Xu Z,Dai C,et al.Three-dimensional FE simulation of multi-strokes cold pilgering of TAl8 titanium alloy tube:I theoretical analysis,modeling and validation.Rare Met Mat Eng,2013,42(3):524(黄亮,徐哲,代春,等.TAl8钛合金管材多行程皮尔格冷轧过程三维有限元模拟:I理论解析、模型建立与验证.稀有金属材料与工程,2013,42(3):524)
[10]Davies R W,Khaleel M A,Kinsel W C,et al.Anisotropic yield locus evolution during cold pilgering of titanium alloy tubing.J Eng Mat Technol,2002,124:125
[11]He Y H,Liu Y L,Deng G C,et al.Numerical simulation of influence of process parameters on aluminum plate's temperature drop during hot rolling.J Central S Univ Sci Technol,2007,38(4):728(何玉辉,刘义伦,邓高潮,等.工艺参数对铝板带热轧过程总温降影响的数值模拟.中南大学学报(自然科学版),2007,38(4):728)
[12]Yi Y P,Liu C,Huang S Q.Simulation of dynamic recrystallization for 7050 aluminium alloy on platform of DEFORM--3D using cellular automaton.J Central S Univ Sci Technol,2010,41(5):1814(易幼平,刘超,黄始全.基于DEFORM--3D的7050铝合金动态再结晶元胞自动机模拟.中南大学学报(自然科学版),2010,41(5):1814)
[13]Mulot S,Hacquin A,Montmitonnet P.A fully 3D finite element simulation of cold piligering.J Mat Process Technol,1996,60(1):505
[14]Montmitonnet P,LogéR,Hamery M,et al.3D elastic-plastic finite element simulation of cold pilgering of zircaloy tubes.J Mat Process Technol,2002,125:814
[15]Feng Z X,Zhang J Z,Yang J J,et al.Plastic deformation propagation characteristic of metals under cyclic loading.Acta Metall Sinica,1995,31(8):351(冯忠信,张建中,杨建军,等.金属材料在循环加载下塑性变形的传播特性.金属学报,1995,31(8):351)
[16]Chu Z B,LüY Y,Huang Q X,et al.Establishment and verification of pilger mill cold rolled stainless steel tube springback prediction model.J Sichuan Univ Eng Sci Ed,2015,47(2):165(楚志兵,吕阳阳,黄庆学,等.皮尔格轧机冷轧不锈钢管回弹预测模型的建立与验证.四川大学学报(工程科学版),2015,47(2):165)
[2]Pociecha D,Boryczko B,Osika J,et al.Analysis of tube deformation process in a new pilger cold rolling process.Arch Civ Mech Eng,2014,14(3):376
[3]Abe H,Iwamoto T,Yamamoto Y,et al.Dimensional accuracy of tubes in cold pilgering.J Mater Process Technol,2016,231:277
[4]Gurao N P,Akhiani H,Szpunar J A.Pilgering of Zircaloy-4:experiments and simulations.J Nucl Mat,2014,453(1):158
[5]Lodej B,Niang K,Montmitonnet P,et al.Accelerated 3D FEM computation of the mechanical history of the metal deformation in cold pilgering of tubes.J Mat Process Technol,2006,177(1):188
[6]Abe H,Furugen M.Method of evaluating workability in cold pilgering.J Mat Process Technol,2012,212(8):1687
[7]Abe H,Nomura T,Kubota Y.Lubrication of tube in cold pilgering.J Mat Process Technol,2014,214(8):1627
[8]Liu J L,Zeng W D,Du Z L,et al.The influence rule of rolling process parameters on metal flow and forming load of TA18 alloy tube during cold rolling.Titanium Ind Prog,2015,32(3):21(刘江林,曾卫东,杜子龙,等.冷轧工艺参数对TA18钛合金管材金属流动及成形载荷的影响规律.钛工业发展,2015,32(3):21)
[9]Huang L,Xu Z,Dai C,et al.Three-dimensional FE simulation of multi-strokes cold pilgering of TAl8 titanium alloy tube:I theoretical analysis,modeling and validation.Rare Met Mat Eng,2013,42(3):524(黄亮,徐哲,代春,等.TAl8钛合金管材多行程皮尔格冷轧过程三维有限元模拟:I理论解析、模型建立与验证.稀有金属材料与工程,2013,42(3):524)
[10]Davies R W,Khaleel M A,Kinsel W C,et al.Anisotropic yield locus evolution during cold pilgering of titanium alloy tubing.J Eng Mat Technol,2002,124:125
[11]He Y H,Liu Y L,Deng G C,et al.Numerical simulation of influence of process parameters on aluminum plate's temperature drop during hot rolling.J Central S Univ Sci Technol,2007,38(4):728(何玉辉,刘义伦,邓高潮,等.工艺参数对铝板带热轧过程总温降影响的数值模拟.中南大学学报(自然科学版),2007,38(4):728)
[12]Yi Y P,Liu C,Huang S Q.Simulation of dynamic recrystallization for 7050 aluminium alloy on platform of DEFORM--3D using cellular automaton.J Central S Univ Sci Technol,2010,41(5):1814(易幼平,刘超,黄始全.基于DEFORM--3D的7050铝合金动态再结晶元胞自动机模拟.中南大学学报(自然科学版),2010,41(5):1814)
[13]Mulot S,Hacquin A,Montmitonnet P.A fully 3D finite element simulation of cold piligering.J Mat Process Technol,1996,60(1):505
[14]Montmitonnet P,LogéR,Hamery M,et al.3D elastic-plastic finite element simulation of cold pilgering of zircaloy tubes.J Mat Process Technol,2002,125:814
[15]Feng Z X,Zhang J Z,Yang J J,et al.Plastic deformation propagation characteristic of metals under cyclic loading.Acta Metall Sinica,1995,31(8):351(冯忠信,张建中,杨建军,等.金属材料在循环加载下塑性变形的传播特性.金属学报,1995,31(8):351)
[16]Chu Z B,LüY Y,Huang Q X,et al.Establishment and verification of pilger mill cold rolled stainless steel tube springback prediction model.J Sichuan Univ Eng Sci Ed,2015,47(2):165(楚志兵,吕阳阳,黄庆学,等.皮尔格轧机冷轧不锈钢管回弹预测模型的建立与验证.四川大学学报(工程科学版),2015,47(2):165)