作　　者： ; ; ; ;

机构地区： 燕山大学机械工程学院

出　　处： 《精密成形工程》 2009年第2期23-29,共7页

摘　　要： 通过Dynaform有限元模拟,制定了高速铁路承轨台模板两次拉深成形工艺方案。采用均匀设计法,选择出了预成形最佳压边力与坯料尺寸的组合。预成形实验结果与模拟结果符合较好,法兰外边缘宽度方向尺寸最大相对误差为1.22%,长度方向尺寸最大相对误差为4.86%。通过该拉深成形工艺方案获得了表面质量和尺寸均合格的高速铁路承轨台模板零件,并进行了小批量生产,已应用于工程实际。 The track template is a crucial part of the high-speed railway＇s track constructing, and the manufacture experiences are still lacked in China. In this paper, the two-step drawing process scheme is established by FEA of Dynaform. The preforrning is the key step of the whole process. The best combination of blank hold force and blank size is obtained by uniform design method. The preformation＇s experimental results and simulation results are well coincided. The maximum relative error of width direction size reaches 1.22 % , and the maximum relative error of length direction size is less than 4.86 %. The eligible parts were formed by the drawing process and pilot production was carried out. The process has been applied to engineering practice.

关 键 词： 高速铁路承轨台模板 压边力 坯料尺寸

领　　域： [金属学及工艺]