锻压技术

环件轧制过程鼓形毛坯变化规律及塌边缺陷分析

英文标题：Study on deformation law of drum-shaped blank and collapse defect in rolling process

作者：贺佳阳王雷刚黄瑶孔德智

单位：江苏大学

关键词：环件轧制鼓形毛坯塌边

分类号：TG379

出版年,卷(期):页码：2014,39(3):47-51

摘要：

基于有限元模拟软件Simufact.Forming，建立径、轴向轧制模型,针对某一环件产品，通过对不同鼓出量的鼓形毛坯进行数值模拟，揭示鼓形毛坯在轧制过程的变化规律，分析了塌边缺陷的形成过程及消除措施。结果表明：轧制初期鼓形消失速度远大于轧制后期，鼓形越到后期越难消除，最终导致环件塌边缺陷。环坯鼓形鼓出量≥120 mm时,最终环件会产生塌边缺陷；环坯鼓形鼓出量≤90 mm时,最终环件不会产生塌边缺陷。为了避免塌边缺陷，当鼓形较小时，采用轧制初期大的径向进给量，当鼓形较大时，必须增加一道滚圆工序。

Based on the FEM software Simufact.Forming, a finite element model of radial-axial rolling for one ring product was constructed and the rolling process of different drum-shaped blanks were simulated, which revealed the variation of drum-shaped blank in the rolling process and analyzed the formation process and eliminating measures of collapse defect. The results show that the drum disappearing rate in initial rolling stage is greater than the one in later stage and more difficult to disappear, which leads to collapse defect in the end. When the drum-shaped ring blank is equal or greater than 120 mm, the drum-shape will lead to collapse defect finally; while the drum-shaped ring blank is equal or less than 90 mm, the drum-shape will not lead to collapse defect finally. Aiming at the collapse defect being avoided, the drum-shape can be reduced by adopting greater radial feed in initial rolling stage in the case of small drum-shape or adding one rolling process in the case of large drum-shape.

基金项目：

江苏省企业研究生工作站资助项目

参考文献：

［1］胡正寰，刘晋平.零件轧制技术的现状与展望[J].航空制造技术，2004，(3):49-51.Hu Zhenghuan，Liu Jinping. Present status and prospect of part rolling technology[J].Aeronautical Manufacturing Technology，2004，(3):49-51.
［2］蒲思洪，孙莉芳，王龙祥，等.径-轴双向环轧工艺的研究进展[J].精密成形工程，2010，2(4):43-47.Pu Sihong，Sun Lifang，Wang Longxiang，et al. Research progress in radial-axial ring rolling[J].Journal of Netshap Forming Engineering，2010，2(4):43-47.
［3］胡正寰，华林.零件轧制成形技术[M].北京:化学工业出版社，2010.Hu Zhenghuan，Hua Lin. Technology of Rotary Metal Forming[M].Beijing: Chemical Industry Press，2010.
［4］李洪伟，付建华.大型环件热辗扩数值模拟与实验研究[J].山西冶金，2007，(4):19-21.Li Hongwei，Fu Jianhua.Research and numerical simulation on hot rolling large ring[J].Shanxi Metallurgy，2007，(4):19-21.
［5］王敏，杨合，郭良刚，等.环件热辗扩成形有限元建模仿真研究进展[J].中国有色金属学报，2011，(7):1647-1655.Wang Min，Yang He，Guo Lianggang，et al. Research development of finite element modeling and simulation of hot ring rolling[J].The Chinese Journal of Nonferrous Metals，2011，(7):1647-1655.
［6］王泽武，袁海伦，曾青，等.大型锥形环件成型制造新工艺及其数值模拟[J].核动力工程，2007，28(2):69-72.Wang Zewu, Yuan Hailun, Zeng Qing， et al. New techniques for prototype manufacturing of great conical ring and its numerical simulation[J]. Nuclerar Power Engineering，2007，28(2):69-72.
［7］郭建.异形环轧制工艺研究[D].武汉：华中科技大学,2006.Guo Jian. Study on Rolling Process of Heterotypicring[D]. Wuhan: Huazhong University of Science and Technology,2006.
［8］韩星会，华林，兰箭，等.LD10内台阶锥形环件热轧模拟和实验研究[J].武汉理工大学学报，2007，29(11):7-10.Han Xinghui，Hua Lin，Lan Jian，et al. Simulation and experimental study of hot rolling of LD10 conical ring with inner steps[J].Journal of Wuhan University of Technology，2007，29(11):7-10.
［9］孙琦昊，王雷刚，吴君三，等.L形截面环形锻件的制坯工艺研究[J].锻压技术，2011，36(5):14-18.Sun Qihao, Wang Leigang, Wu Junsan， et al. Blocking technology research on L-shaped section ring forgings[J].Forging & Stamping Technology，2011，36(5):14-18.
［10］龚小涛，杨帆，郭红星，等.复杂异形环件毛坯优化设计方法研究[J].锻压技术，2012，37(2):75-78.Gong Xiaotao，Yang Fan，Guo Hongxing，et al. Optimal design method study on blank of complicated profile ring[J]. Forging & Stamping Technology，2012，37(2):75-78.
［11］龚小涛，杨帆.台阶锥形环件冷辗压中等效塑性应变规律研究[J].锻压技术，2012，37(5):140-143.Gong Xiaotao，Yang Fan. Deformation behavior of conical ring with outer steps for cold ring rolling[J]. Forging & Stamping Technology，2012，37(5):140-143.
［12］姚泽坤.锻造工艺学与模具设计[M].西安: 西北工业大学出版社,1998.Yao Zekun. Forging Technology and Die Design[M].Xian: Northwestern Polytechnical University Press,1998.
［13］中国机械工程学会塑性工程学会.锻压手册:第1卷[M].北京:机械工业出版社,2008.The China Society for Technology of Plasticity, Chinese Mechanical Engineering Society. Forging Handbook: the First Volume[M].Beijing: China Machine Press,2008.
［14］华林，黄兴高，朱春东.环件轧制理论和技术[M].北京: 机械工业出版社，2001.Hua Lin，Huang Xinggao，Zhu Chundong. Theory and Technology of Ring Rolling[M].Beijing: China Machine Press，2001.

服务与反馈：

【文章下载】【加入收藏】