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- Tube hydroformation(THF) is complicated and requires in-tube pressurization and axial feeding to cooperate with each other so as to form high quality parts. 管液压成形(THF)过程非常复杂,它往往要求管内压力施加和管端轴向位移准确配合以成形出高品质的零件,为此需要配有管端轴向进给控制系统和昂贵的超高压泵给系统。
- A mold for thin-walled tube hydroforming experiment is designed. 设计了一套用于两端固定的薄壁管液压胀形试验的模具；
- It is important to design the loading path correctly during the tube hydroforming process. 确定合理的加载路径是管件液压成形工艺设计的关键。
- Tube hydroforming technology as an innovative process was more and more widely used in automobile industry recently. 液压挤胀成形工艺近年来发展迅速,尤其在汽车行业应用非常广泛。
- An algorithm for tube hydroforming was presented, which was based on the dynamical explicit method and BT element. 摘要根据动力显式增量有限元方法和BT壳单元提出了液压胀形模拟算法。
- The loading paths in the tube hydroforming have the critical effects on the final part quality. 加载路径对液压胀形件的最终质量有着至关重要的影响。
- The technology of tube hydroforming has gained wide range application over the last few years. 管材液压成形技术近来获得了广泛的应用。
- Based on the discussion of problems in the development of tube hydroforming, the development trend is presented. 在给出内高压成形工艺目前发展中存在的主要问题的基础上,指出了未来几年内高压成形工艺的发展趋势。
- The technology of tube hydroforming is new and has still many problems need to be studied. 管材液压成形技术是一个相对新颖的技术,其在应用过程中仍然有许多问题需要研究和解决。
- By using the explicit code LS-DYNA,the tube hydroforming process was simulated and reference was provided for the practical forming experiments. 应用LS-DYNA软件,实现圆管液压胀形的模拟仿真过程,为具体的成形实验提供了参考。
- It has been experimentally indicated that moderate wrinkle will make a contribution to enhancing the formability of the dieless tube hydroforming. 介绍了管材无模轴压胀形的实验,研究表明,适度的褶皱有助于提高成形极限。
- Relationship and control of axis sealing and internal pressure directly affects deformation process in tube hydroforming. 圆管液压成形过程中的轴向密封力与内压力的关系及控制直接影响到圆管的成形状态。
- The new development in tube hydroforming in China is introduced,including forming mechanism,process,press and application. 介绍近年来在内高压成形机理、工艺、设备和应用方面的最新进展。
- Abstract: Relationship and control of axis sealing and internal pressure directly affects deformation process in tube hydroforming. 摘 要: 圆管液压成形过程中的轴向密封力与内压力的关系及控制直接影响到圆管的成形状态。
- The simulation result compares well with the experimental result The FLSD is able to predict the forming limit of tube hydroforming with remarkable accuracy. 模拟结果与物理实验结果相吻合，证明FLSD可作为管材内高压成形等复杂应变路径下成形极限的判据。
- This FLSD was used in conjunction with LS -DYNA finite element simulation to predict the onset of fracture and limit forming pressure in tube hydroforming. 采用LS-DYNA软件对方截面汽车结构件内高压成形过程进行了模拟，应用FLSD预测胀形过程中破裂的发生及极限成形压力。
- A display device that uses a cathode ray tube. 一种使用阴极射线管的显示装置。
- He held the test tube in his hand thoughtfully. 他沉思地把试管拿在手里。
- For one thing, ERC/NSM, which he helped establish in 1986, has organized a consortium of 31 companies that is working on developments in tube hydroforming. 在他的帮助下于1986年成立的ERC/NSM组织了一个有31家公司的协会，旨在开发管液压成形。
- Centering on the tube hydroforming (THF) technology,this paper studies the methodology for the plastic forming process design and the stability of the plastic deformation. 本论文围绕管材内高压胀形工艺，针对塑性成形工艺设计方法和塑性变形稳定性等问题展开了研究。
