张静,宋德军,朱强,马荻,王剑锋

• 1:郑州大学材料科学与工程学院
• 2:中国船舶集团公司第七二五研究所

摘要(Abstract)：

为了研究高温环境下温度、助推速度、弯曲速率对钛合金Ti75管材弯曲成形质量的影响,并确定最佳的加热温度。采用有限元软件ABAQUS对Ti75钛合金管在高温环境下的数控弯成形过程进行了有限元模拟。由于模型中涉及到热和力,所以有限元模拟使用顺序耦合热应力分析法。首先分析传热问题,然后将得到的温度场作为已知条件,进行热应力分析,得到应力应变场。结果表明:助推速度对Ti75钛合金管热弯成形有显著影响,助推速度比值为1时成形质量最佳;450℃为最佳成形温度;在满足使用要求的前提下,选择较短弯曲时间能获得相对较好的成形质量,并提高生产效率。此外,实验成形的管材形状与模拟结果相吻合,验证了有限元仿真模拟技术的可靠性。

关键词(KeyWords)： Ti75合金;有限元模拟;ABAQUS软件;弯曲成形

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 张静,宋德军,朱强,马荻,王剑锋

DOI: 10.13289/j.issn.1009-6264.2019-0589

参考文献(References)：

• [1] Yang H,Li H,Zhang Z,et al.Advances and trends on tube bending forming technologies[J].Chinese Journal of Aeronautics,2012,25(1):1-12.
• [2] 皇涛,詹梅,曹刚,等.TA18高强钛管数控弯曲变形历史特征[J].塑性工程学报,2014(2):81-87.HUANG Tao,ZHAN Mei,CAO Gang,et al.Research on variation characteristic of stress and strain in NC bending of TA18 high strength titanium alloy tube[J].Journal of Plasticity Engineering,2014(2):81-87.
• [3] 贾美慧,唐承统.管材塑性弯曲成形的有限元数值模拟分析[J].沈阳大学学报,2013,25(3):193-197.JIA Mei-hui,TANG Cheng-tong.Analysis of tube plastic bending deformation based on finite element numerical simulation[J].Journal of Shenyang University,2013,25(3):193-197.
• [4] 吴建军,何朝阳,张萍.大直径薄壁钛管加热弯曲成形的数值模拟[J].锻压技术,2008,33(4):150-153.WU Jian-jun,HE Zhao-yang,ZHANG Ping.Numerical simulation of thin wall Ti-tube heating bending process with large diameter[J].Forging Stamping Technology,2008,33(4):150-153.
• [5] Lou H,Stelson K.Three-dimensional tube geometry control for rotary draw tube bending,part 1:bend angle and overall tube geometry control[J].Journal of Manufacturing Science and Engineering,2001,123(2):258-265.
• [6] Leu D K.A simplified approach for evaluating bendability and springback in plastic bending of anisotropic sheet metals[J].Journal of Materials Processing Technology,1997,66(1/3):9-17.
• [7] 詹梅,杨合,栗振斌.管材数控弯曲回弹规律的有限元分析[J].材料科学与工艺,2004,12(4):349-352.ZHAN Mei,YANG He,LI Zhen-bin.FEM numerical analysis of springback law of NC tube bending[J].Materials Science and Technology,2004,12(4):349-352.
• [8] Paulsen F,Welo T.Application of numerical simulation in the bending of aluminium-alloy profiles[J].Journal of Materials Processing Technology,1996,58(2/3):274-285.
• [9] 鲁世强,方军,唐金星,等.不同模具组合对0Cr21Ni6Mn9N不锈钢管数控弯曲成形质量的影响[J].中国机械工程,2016,27(12):1673-1678.LU Shi-qiang,FANG Jun,TANG Jin-xing,et al.Effects of different die sets on forming quality of 0Cr21Ni6Mn9N stainless steel tube during NC bending[J].China Mechanical Engineering,2016,27(12):1673-1678.
• [10] 李毅,詹梅,王建光,等.CP3薄壁焊管数控弯曲成形有限元分析[J].航空制造技术,2011(16):86-89.LI Yi,ZHAN Mei,WANG Jian-guang,et al.FE analysis of NC bending of thin-walled CP3 welded tubes[J].Aeronautical Manufacturing Technology,2011(16):86-89.
• [11] 葛伟伟,马玉华,邵瑞影,等.基于Abaqus有限元分析软件的材料力学辅助教学[J].电子质量,2019(8):4-6.GE Wei-wei,MA Yu-hua,SHAO Rui-ying,et al.Mechanics of materials based on abaqus finite element analysis software analysis[J].Electronics Quality,2019(8):4-6.
• [12] 叶福民,章威.薄壁圆管绕弯壁厚减薄数值模拟研究[J].江苏科技大学学报(自然科学版),2013,27(1):39-42.YE Fu-min,ZHANG Wei.Numerical simulation of outwall thinning in the thin-wall pipe rotary bending[J].Journal of Jiangsu University of Science and Technology(Natural Science Edition),2013,27(1):39-42.
• [13] 石伟,王雪刚,刘庄,等.缠绕拉拔式弯管过程中弯头截面变形的有限元分析[J].电站系统工程,2003,19(4):409-413.SHI Wei,WANG Xue-gang,LIU Zhuang,et al.FE analysis of elbow section deformation during winding and drawing bending[J].Power station system engineering,2003,19(4):409-413.
• [14] 熊淑元.圆管弯曲的弯曲变形规律和弯曲回弹的研究[D].重庆:重庆大学,2001.XIONG Shu-yuan.Research on bending deformation law and bending springback of circular tube bending[D].Chongqing:Chongqing University,2001.
• [15] Tao Z,Li H,Ma J,et al.FE modeling of a complete warm-bending process for optimal design of heating stages for the forming of large-diameter thin-walled Ti-6Al-4V tubes[J].Manufacturing Review,2017,4:8.

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