Continuous-forming method for three-dimensional surface parts combining rolling process with multipoint-forming technology
Continuous-forming method for three-dimensional surface parts combining rolling process with multipoint-forming technology
复制标题
滚压工艺与多点成形技术相结合的三维曲面零件连续成形方法
DOI：
10.1007/s00170-014-5660-7
复制
发表时间：
2014-02
影响因子：
3.4
通讯作者：
Cai, Zhongyi
中科院分区：
文献类型：
--
作者：
Wang, Daming;Li, Mingzhe;Cai, Zhongyi
柔性滚压成形是将滚压成形与多点成形技术相结合的一种新型三维曲面零件成形工艺。该工艺采用一对成形辊作为成形工具。通过控制上下成形辊之间的差距，使板材纵向不均匀伸长产生的残余应力使板材产生三维变形。本文介绍了在成形过程中辊缝中间曲线半径远大于成形面横向曲率半径的工艺改进。由于弯曲变形小，成形辊容易绕其自身轴线旋转，这适合于生产包括具有相对小的横向曲率半径的宽金属板的三维表面部件。阐述了其形成原理，并给出了相应的公式.建立了有限元分析模型，并对球面和马鞍面进行了仿真。通过仿真结果分析了成形精度和形状误差产生的原因。设计了相应的实验装置，并给出了实验结果。仿真结果与实验结果吻合较好，验证了用仿真指导实验的可行性。数值模拟和实验结果表明，该工艺是一种可行的、有效的三维曲面零件成形方法。
Flexible rolling is a novel forming process for three-dimensional surface parts, which combines the rolling process with multipoint-forming technology. This process employs a pair of forming rolls as a forming tool. By controlling the gap between the upper and lower forming rolls, residual stress caused by the longitudinal non-uniform elongation of sheet metal makes the sheet metal generate three-dimensional deformation. In this paper, the improvement of the process is introduced that the middle curve radius of the roll gap is much larger than the transverse curvature radius of the forming surface in the forming process. The forming roll rotates around its own axis easily because of the small bending deformation which is suitable for producing three-dimensional surface parts including the wide sheet metal with a relatively small transversal curvature radius. The forming principle is set forth, and corresponding formulations are presented. Finite element analysis model is established, and spherical and saddle surface are simulated. The forming precision and the causes of the shape errors are analyzed through simulated results. The experimental equipment is designed and their experimental results are obtained. Simulation results are in well agreement with the experimental results, which verifies the feasibility of using simulation to guide the experiment. The results of both numerical simulations and experiments show that the proposed process is a feasible and effective way of forming three-dimensional surface parts.
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DOI：
10.1007/s00170-011-3537-6
发表时间：
2012-03
期刊：
The International Journal of Advanced Manufacturing Technology
影响因子：
--
作者：
Menghan Wang;D. Xiang;Chuan Xiao;J. Zhou;Zhi Jia
通讯作者：
Menghan Wang;D. Xiang;Chuan Xiao;J. Zhou;Zhi Jia
基于柔性辊弯的三维板材连续成形工艺：原理与实验
DOI：
10.1016/j.jmatprotec.2011.08.014
发表时间：
2012-01-01
影响因子：
6.3
作者：
Cai, Zhong-Yi;Li, Ming-Zhe;Lan, Ying-Wu
通讯作者：
Lan, Ying-Wu
影响因子：
4.1
作者：
Shim, D. S.;Yang, D. Y.;Chung, S. W.
通讯作者：
Chung, S. W.
影响因子：
6.8
作者：
D. Hardt;D. Gossard
通讯作者：
D. Hardt;D. Gossard
影响因子：
6.3
作者：
K. Mori;M. Yamamoto;K. Osakada
通讯作者：
K. Mori;M. Yamamoto;K. Osakada