【作者】 高嵩； 梁继才； 李奇涵； 于鹏； 孙荧力；

【Author】 Gao Song;Liang Ji-cai;Li Qi-han;Yu Peng;Sun Ying-li;Changchun University of Technology;Jilin University;

【机构】 长春工业大学； 吉林大学；

【摘要】 柔性多点三维拉弯成形工艺是一种采用离散多点模具,通过渐进加载增量成形方式,适用于型材二维或三维弯曲,且快速、低成本开发的三维弯曲成形技术。本文介绍了该成形工艺的基本原理,成形装备中关键部件单元体和多自由度的三维拉弯机械臂结构,并针对高铁车头骨架结构件进行了数值仿真计算。模拟结果与实验结果基本吻合,达到了高铁列车车头关键骨架结构件的成形精度要求。更多还原

【Abstract】 Based on the idea of multi-points forming and the conventional stretch-bending process, the flexible 3D stretch-bending technology was developed in recent year. According to the incremental forming method, the new process is suitable to 2D or 3D stretch-bending, which is a low cost and fast forming process. In this paper, the forming principle and the key components of the new process was introduced. The numerical simulation of the forming process for the structural parts of Chinese high-speed trains was conducted, nicer simulated results were gained.更多还原