皮尔格冷轧管机关键工艺参数周期送进量研究
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摘要
针对目前皮尔格冷轧中关键工艺参数周期送进量无定量计算、选择随机性大的缺点,在分析周期送进量对轧制过程无缝钢管变形特点影响的基础上,以轧制304不锈钢管为例,通过理论计算获得送进量数值,建立周期送进量数值模拟模型,研究其对轧制过程金属变形及成品质量的影响规律,为其工艺参数选择提供依据。利用三维有限元软件建立数值仿真模型,以之前求得的周期送进量为依据,开展轧制过程仿真,得到轧制成形过程中应力状态、成品管尺寸以及残余应力等关键数据,并结合现场轧制试验共同验证成品管能否达到预期的性能。通过理论计算、数值模拟及试验验证相结合的方法,为周期送进量的选取提供支持。有限元模拟与实际试验测量得到的结果相差不大,误差不超过8%,证明了有限元模拟结果的准确性。通过理论计算得出的10 mm送进量下的残余应力比依据生产经验选取的12 mm送进量下的残余应力要减小10%以上,进一步验证了周期送进量为10 mm能够在一定程度上提高实际生产成品管的质量。
Aiming at the problem that there is big randomness and no quantitative calculation of the key parameters cycle feed range in the Pilger cold-rolling process at present,on the basis of analyzing the influence of the cycle feed range on the deformation characteristics seamless steel tube in the rolling process,taking 304 stainless steel pipe rolling as an example,the numerical simulation model of cycle feed range was established by theoretical calculation to study the influence law of cycle feed range on the metal deformation and the quality of the finished product in the rolling process,and to provide the basis for selecting process parameters.Using three-dimensional finite element software to establish the numerical simulation model,based on the cycle feed range obtained before,the rolling process simulation was carried out.The key data such as the stress state,finished pipe size and residual stress in the rolling forming process were obtained,and combined with the field rolling test to verify whether the finished product can achieve the expected performance.The method of combining theoretical calculation,numerical simulation and experimental verification can be used to provide support for the selection of periodic feed.The error between the finite element simulation results and the experimental results is less than 8%,which verifies the accuracy of the finite element simulation results.The residual stress under the 10 mm feed range calculated by theoretical calculation is reduced by more than 10% compared with the residual stress of 12 mm feed range according to the production experience,which further verifies that the cycle feed range of 10 mm can improve the finished pipe quality in a certain dagree.
Aiming at the problem that there is big randomness and no quantitative calculation of the key parameters cycle feed range in the Pilger cold-rolling process at present,on the basis of analyzing the influence of the cycle feed range on the deformation characteristics seamless steel tube in the rolling process,taking 304 stainless steel pipe rolling as an example,the numerical simulation model of cycle feed range was established by theoretical calculation to study the influence law of cycle feed range on the metal deformation and the quality of the finished product in the rolling process,and to provide the basis for selecting process parameters.Using three-dimensional finite element software to establish the numerical simulation model,based on the cycle feed range obtained before,the rolling process simulation was carried out.The key data such as the stress state,finished pipe size and residual stress in the rolling forming process were obtained,and combined with the field rolling test to verify whether the finished product can achieve the expected performance.The method of combining theoretical calculation,numerical simulation and experimental verification can be used to provide support for the selection of periodic feed.The error between the finite element simulation results and the experimental results is less than 8%,which verifies the accuracy of the finite element simulation results.The residual stress under the 10 mm feed range calculated by theoretical calculation is reduced by more than 10% compared with the residual stress of 12 mm feed range according to the production experience,which further verifies that the cycle feed range of 10 mm can improve the finished pipe quality in a certain dagree.
引文
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[13]李恒,魏栋,杨恒,等.高性能管材二辊皮尔格冷轧成形研究动态及存在问题[J].航空制造技术,2018,61(21):16-24.LI Heng,WEI Dong,YANG Heng,et al.Research trends and existing problems of two-roll Pierger cold rolling for high performance pipes[J].Aviation Manufacturing Tecchnology,2018,61(21):16-24.
[14]朱景清,傅晨光,刘玉坤,等.轧管过程中变形量的计算及其应用[J].钢管,2000,(5):17-22.ZHU Jingqing,FU Chenguang,LIU Yukun,et al.Calculation of deformation during pipe rolling and its application[J].Steel Tube,2000,(5):17-22.
[15]HUANG L,XU Z,DAI C,et al.Three-dimensional FE simulation of multi-strokes cold Pilgering of TA18 titanium alloy tube:I theoretical analysis,modeling and validation[J].Rare Metal Materials&Engineering,2013,42(3):524-529.
[16]LI H,ZHANG H Q,YANG H,et al.Anisotropic and asymmetrical yielding and its evolution in plastic deformation:Titanium tubular materials[J].International Journal of Plasticity,2017,90:177-211.
[2]STINNERTZ H.Cold reducing of non-ferrous metal tubes by the cold-pilgering process[J].Tube Pipe Technology,1988,1:27-31.
[3]李恒,许杰,杨恒,等.不确定因素下薄壁铝合金管弯曲的多目标连续稳健优化设计[J].中国有色金属学报(英文版),2017,27(3):608-615.LI Heng,XU Jie,YANG Heng,et al.Multi objective continuous robust optimization design for bending of thin-walled aluminum alloy tubes under uncertain factors[J].Chinese Journal of Nonferrous Metals(English Edition),2017,27(3):608-615.
[4]LODEJ B,NIANG K,MONTMITONNET P,et al.Accelerated3D FEM computation of the mechanical history of the metal deformation in cold pilgering of tubes[J].Journal of Materials Processing Tech.,2006,177(1-3):188-191.
[5]MULOT S,HACQUIN A,MONTMITONNET P.A fully 3D finite element simulation of cold piligering[J].Journal of Materials Processing Technology,1996,60(1-4):505-512.
[6]DANCHENKO V N,FROLOV Y V,DEKHT-YAREV V S,et al.Development of pipe cold pilger rolling mode computation method with account of metal properties change[J].Pipe&Tube Production,2011,3(3):110-113.
[7]MONTMITIONNET P.3D elastic-plastic finite element simulation of cold pilgering of zircaloy tubes[J].Journal of Materials Processing Technology,2002,125-126(2):814-820.
[8]詹梅,李宏伟,孙新新,等.基于晶体塑性的难变形材料不均匀变形多尺度建模研究进展[J].塑性工程学报,2018,25(1):1-14.ZHAN Mei,LI Hongwei,SUN Xinxin,et al.Research progress of the multi-scale modeling of heterogeneous deformation for hard-todeform material based on crystal plasticity[J].Journal of Plasticity Engineering,2018,25(1):1-14.
[9]廖喜平,谢其军,胡成亮,等.304奥氏体不锈钢热变形行为及热加工图[J].锻压技术,2017,42(12):150-156.LIAO Xiping,XIE Qijun,HU Chengliang,et al.Hot deformation behavior and processing map of austenite stainless steel 304[J].Forging&Stamping Technology,2017,42(12):150-156.
[10]楚志兵,魏栋,杨彦龙,等.不同送进量对皮尔格轧制成形的影响及验证[J].工程科学学报,2017,39(5):747-755.CHU Zhibing,WEI Dong,YANG Yanlong,et al.Influence of different feeding quantities on the roll forming of Pelger and verification[J].Engineering Science Journal,2017,39(5):747-755.
[11]吴圣华,张世宏.皮尔格冷轧管工艺的三维热力耦合有限元模拟[C]//美国MSC软件公司北京代表处.MSC Software虚拟产品开发(VPD)中国用户大会.北京:2010:1-9.WU Shenghua,ZHANG Shihong.Three-dimensional finite element simulation of coupled thermal Pilger cold rolling process[C]//American MSC Software Corporation Beijing Representative Office.MSC Software Virtual Product Development(VPD)China User Conference.Beijing,2010:1-9.
[12]楚志兵,张铎,魏栋,等.皮尔格冷轧无缝钢管成形过程组织演变过程研究[J].工程科学与技术,2017,49(6):163-170.CHU Zhibing,ZHANG Duo,WEI Dong,et al.Study on microstructure evolution of pilger cold rolled seamless steel tube[J].Advanced Engineering Sciences,2017,49(6):163-170.
[13]李恒,魏栋,杨恒,等.高性能管材二辊皮尔格冷轧成形研究动态及存在问题[J].航空制造技术,2018,61(21):16-24.LI Heng,WEI Dong,YANG Heng,et al.Research trends and existing problems of two-roll Pierger cold rolling for high performance pipes[J].Aviation Manufacturing Tecchnology,2018,61(21):16-24.
[14]朱景清,傅晨光,刘玉坤,等.轧管过程中变形量的计算及其应用[J].钢管,2000,(5):17-22.ZHU Jingqing,FU Chenguang,LIU Yukun,et al.Calculation of deformation during pipe rolling and its application[J].Steel Tube,2000,(5):17-22.
[15]HUANG L,XU Z,DAI C,et al.Three-dimensional FE simulation of multi-strokes cold Pilgering of TA18 titanium alloy tube:I theoretical analysis,modeling and validation[J].Rare Metal Materials&Engineering,2013,42(3):524-529.
[16]LI H,ZHANG H Q,YANG H,et al.Anisotropic and asymmetrical yielding and its evolution in plastic deformation:Titanium tubular materials[J].International Journal of Plasticity,2017,90:177-211.