锻压技术

拉延筋结构对椭球瓜瓣构件充液拉深过程的影响

英文标题：Influence of drawbead structure on ellipsoidal scalloped segment component in hydraulic drawing process

作者：田恕张杰刚李倩杨声伟于弘喆郎利辉

分类号：TG394

出版年,卷(期):页码：2019,44(3):77-82

摘要：

基于大型薄壁瓜瓣构件充液拉深现场实验结果，分析了缺陷产生的原因，由于瓜瓣大端角部局部区域拉力不足，材料流料量过大产生了缺陷，其无法单纯依靠整体调整工艺参数解决。针对缺陷产生的原因，提出了3种模具拉延筋优化方案并分别进行了模拟，对比分析了3种方案的流料和起皱情况。结果表明，方案3在解决大端角部起皱的基础上，整体成形效果更优。最终确认方案3为最优方案，并进行了现场生产，与模拟结果一致，通过模具拉延筋优化，解决了瓜瓣构件充液拉深成形过程易出现的局部起皱及拉裂缺陷，获得了合格产品。

Based on the field experiment results of hydraulic drawing for large thin-walled scalloped segment, the reason of the defect was analyzed. Because of the insufficient local pulling force at large end corner of scalloped segment and excessive material flow, the defects could not be solved simply by adjusting the technological parameters as a whole. According to the above reasons of defects, three kinds of die optimization schemes were proposed and simulated respectively, and material flow and wrinkle were compared. The results show that on the basis of solving the wrinkling of the large end corner, scheme 3 is better on the overall forming effect. Finally, scheme 3 was regarded as the best scheme and field production was carried out, which was consistent with the simulation result. The local wrinkling and cracking defects of scalloped segment in hydraulic drawing process were solved by die optimization,and the qualified products were obtained.

基金项目：

天津市科技计划项目（17YFZCGX00530）

田恕（1987-），女，硕士，工程师，E-mail：tian6shu@163.com

参考文献：

［1］Siegert K，Hussermann M，Lsch B，et al. Recent developments in hydroforming technology
［J］. Journal of Materials Processing Technology，2000，98(2):251-258.

［2］Hartl C. Research and advances in fundamentals and industrial applications of hydroforming
［J］. Journal of Materials Processing Technology，2005，167(2-3): 383-392.

［3］Zhang S H，Wang Z R，Xu Y，et al. Recent developments in sheet hydrofoming technology
［J］. Journal of Materials Processing Technology，2004，151(1-3): 238-241.

［4］李涛，郎利辉，周贤宾. 先进板材液压成形技术及其进展
［J］.塑性工程学报，2006，13(3):30-34.

Li T，Lang L H，Zhou X B. Recent developments of the advanced sheet hydroforming
［J］. Journal of Plasticity Engineering，2006，13(3):30-34.

［5］苑世剑. 现代液压成形技术
［M］. 北京：国防工业出版社，2009.

Yuan S J. Modern Hydroforming Technology
［M］. Beijing: National Defense Industry Press，2009.

［6］刘欣，徐永超，苑世剑. 铝合金复杂曲面薄壁件液压成形技术
［J］.精密成形工程，2010，2(1):42-45,56.

Liu X，Xu Y C，Yuan S J.Hydro-forming for aluminum alloy complex-shaped components
［J］.Journal of Netshape Forming Engineering，2010，2(1): 42-45,56.

［7］郎利辉，王永铭，谢亚苏，等.铝合金盒形件充液成形法兰变形特性及其失稳影响分析
［J］.材料科学与工艺，2013，21(4): 37-43.

Lang L H，Wang Y M，Xie Y S，et al. The flange deformation characteristics and its effect on failure in the hydroforming process of aluminum alloy rectangular cup
［J］. Materials Science and Technology, 2013, 21(4): 37-43.

［8］孟宝，万敏，吴向东，等.复杂型面零件充液拉深失效控制研究
［J］.航空学报，2010，31(12):2457-2463.

Meng B，Wan M，Wu X D，et al. Research on failure control of hydroforming deep drawing for complex surface part
［J］. Acta Aeronautica et Astronautica Sinica，2010，31(12): 2457-2463.

［9］郎利辉，丁少行，杨希英，等.汽车后备箱门内板充液成形数值模拟与试验验证
［J］.汽车工程，2015，37(5):599-604.

Lang L H，Ding S X，Yang X Y，et al. Numerical simulation and test verification of hydroforming for the inner panel of vehicle trunk door
［J］.Automotive Engineering，2015，37(5):599-604.

［10］彭成允，邹强，李小平，等.基于数值模拟的盒形件拉深成形变拉深筋技术研究
［J］. 精密成形工程，2011，3(4):4-6.

Peng C Y，Zou Q，Li X P，et al.Study of variable draw bead technology for rectangular box drawing based on numerical simulation
［J］. Journal of Netshape Forming Engineering，2011，3(4):4-6.

［11］胡心平，苏合新，王言德.基于DYNAFORM的汽车前防撞梁支撑板的拉延模具设计
［J］. 锻压技术，2017，42(9):118-122.

Hu X P，Su H X，Wang Y D. Design on drawing die of automotive front anti-collision beam support plate based on DYNAFORM
［J］. Forging ＆ Stamping Technology，2017，42(9):118-122.

服务与反馈：

【文章下载】【加入收藏】