锻压技术

圆角结构对新型金属桥塞密封件液压成形性能的影响

英文标题：Influence of fillet structure on the hydroformability of new metal bridge plug seal

作者：陈大勇徐勇张士宏陈岩马震尚晓峰

分类号：TG394

出版年,卷(期):页码：2017,42(3):123-129

摘要：

针对新型金属桥塞密封件的成形工艺开展研究，探究圆角结构对密封件液压成形性的影响。采用有限元模拟（MSC.Marc软件）和实验相结合的方法，选取零件的形状和中间薄壁弧形段壁厚作为调控对象。通过比较不同圆角半径对零件等效塑性应变分布和大小以及对液压成形力的影响作用，得出合理的圆角结构尺寸。结果表明，随着圆角半径增大，零件中间弧形薄壁段等效塑性应变更加均匀，数值也逐渐减小，液压成形力逐渐增大。模拟和实验结果基本一致，圆角半径为2.5 mm时，对密封件的成形效果最佳，圆角部位不仅未开裂，且外形尺寸满足要求，因此，利用液压成形工艺加工该类金属桥塞密封件可行且高效。

The hydroforming process of a new type metal bridge plug seal was studied, and the influences of fillet radius on the hydroformability of metal seal were researched. Then, for the part shape and thickness of middle arc segment, by combining FEM (software MSC.Marc) with actual hydroforming experiments, a reasonable fillet radius was obtained after analyzing the influences of different fillet radii on equivalent plastic strain and hydraulic forming force. FEM results
show that its equivalent plastic strain distributes more uniformly, its numerical value is gradually reduced and hydraulic forming force increases gradually with the increase of fillet radius. The simulation and experiment results are consistent, and the seal effect is the best for metal seal when the fillet radius is 2.5 mm, and the dimensions of part at the fillet positions meet the requirements without crack. Therefore, it is a feasible and efficient process to form the metal bridge plug seal parts.

基金项目：

国家自然科学基金资助项目（51304186）;中国博士后科学基金（2016M590454）

陈大勇（1987-），男，博士研究生徐勇（1983-），男，博士，副研究员

参考文献：

［1］徐建. 可取式桥塞研制与应用[J]. 石油钻采工艺，2009,31(3):114-118.Xu J. Development and application of retrievable bridge plugs [J]. Oil Drilling & Production Technology, 2009,31(3):114-118.
［2］张恩伦，刘化国，杨玉生. 桥塞封层工艺技术的发展[J]. 石油机械，2001, 29(10):47-50.Zhang E L, Liu H G, Yang Y S. The development of seal technology of bridge plug [J]. Petroleum Machinery,2001,29(10):47-50.
［3］蔺伟，李颖，陈宁，等. 一种新型可取式桥塞的研制与应用[J]. 石油矿场机械，2003,32(6):83-85.

Lin W, Li Y, Chen N, et al. Development and application of a new removable bridge plug [J]. Oil Field Equipment, 2003,32(6):83-85.
［4］王岩. 某型桥塞的力学分析及校核[D]. 长春：吉林大学，2013.Wang Y. Mechanical Analysis and Verification of a Certain Type of Bridge Plug[D]. Changchun: Jilin University,2013.
［5］冯定，檀便友，袁咏心，等.恶劣环境下的动密封结构设计[J].润滑与密封，2011,36(4): 87-89.Feng D, Tan B Y, Yuan Y X, et al. The structure design of dynamic sealing in the adverse circumstances[J]. Lubrication Engineering, 2011,36(4):87-89.
［6］赵志祥，陈春娟，马国富，等.耐高温高压封隔器胶筒的研制[J].特种橡胶制品，2009, 30(1): 49-50.Zhao Z X,Chen C J,Ma G F,et al. The development of the closed rubber bobbin with high temperature resistant-blow off proof[J].Special Purpose Rubber Products,2009,30(1): 49-50.
［7］李明晏，常静，李会雨，等.耐高温高压封隔器密封材料研究与应用[J].科技与企业， 2012, (20):284.Li M Y, Chang J, Li H Y, et al. Research and application of high temperature and high pressure packer sealing material[J]. Technology and Enterprise, 2012,(20):284.
［8］胡玉志，刘克勇，王黎阳.金属封隔器的试验研究[J].新疆石油学院学报，2004，16(4):85-89.Hu Y Z, Liu K Y,Wang L Y. The research on metal packers[J]. Journal of Xinjiang Petroleum Institute, 2004, 16(4):85-89.
［9］刘克勇，蔡伟，赵连城，等.金属封隔器原理性结构试验研究与分析[J].石油机械，2008, 36(10):16-18.Liu K Y, Cai W,Zhao L C,et al.Study and analysis of mechanism structure test of metal packer[J]. China Petroleum Machinery,2008, 36(10):16-18.
［10］王继飞，张瑞霞，刘建新，等. 新型油气井井下密封形式[J]. 润滑与密封，2016,41(1):134-137.Wang J F, Zhang R X, Liu J X, et al. New sealing styles in downhole for reservoir[J]. Lubrication Engineering, 2016, 41 (1):134-137.
［11］Zhang S H.Developments in hydroforming[J]. Journal of Material Processing Technology,1999, 91(1-3):236-244.
［12］张士宏，徐勇，程明，等. 脉动液压成形技术与设备[J].机械工程学报，2013,49(24):1-6.Zhang S H, Xu Y, Cheng M, et al. Technology and equipment of the pulsating hydroforming technology[J]. Journal of Mechanical Engineering, 2013,49(24):1-6.
［13］Xu Y, Zhang S H, Cheng M, et al. Formability improvement of austenitic stainless steel by pulsating hydroforming[J]. Proceedings of the Institution of Mechanical Engineers Part B: Journal of Engineering Manufacture, 2015, 229(4):609-615.

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