锻压技术

锥形件一次成形不起皱条件下的质点径向位移

英文标题：Radial displacement of mass point without wrinkle for one-step forming conical part

作者：李娜张文文李群赵石岩闫文云

分类号：TG316.2

出版年,卷(期):页码：2017,42(8):33-37

摘要：

针对锥形件在一次成形过程中易出现起皱缺陷，分析了锥形件的成形特征，给出锥形件的成形机理，定义一次成形中锥壁上质点靠模位移最大点为不起皱关键点，并依据材料性能和几何条件，给出了锥形件一次成形极限不起皱关键点径向位移的计算条件。利用网格应变测试仪，分别对3种材料进行锥形件成形实验分析验证，得出锥形件一次成形不起皱条件下不同相对锥顶直径的径向位移实验值，并与计算条件得出的理论计算值进行对比分析，计算两者的误差，初步判定计算条件的适用性。给出计算条件的修正值和修正后的计算值与实验值的误差，最终获得计算条件的修正结果和适用范围。

Since wrinkling is the main defect during the one-step forming process of conical part, the forming characteristics of conical parts were analyzed, and the corresponding forming mechanism was discussed. Meanwhile, the maximum displacement points of mass on the cone wall were defined as the key point without wrinkling. In consideration of material properties and geometric conditions, the calculated conditions of the radial displacement for the key point without wrinkle during the one-step forming limit of conical part were obtained. Then, the conical parts forming experiments based on three materials were verified by the grid strain tester, and experiments values of different relative cone top diameter were given. Compared the calculated values with experimental values, the errors were calculated, and the applicability was preliminary determined. Finally, the revised values and the revised error were put forward, and the final results and range of application were carried out.

基金项目：

河北省科技计划项目（152176315）

李娜（1982-），女，硕士，助理研究员

参考文献：

［1］陈齐广.圆锥形件拉深成形侧壁起皱预测[D]. 湘潭：湘潭大学，2015.Chen Q G. Prediction of Wall Wrinkling in Deep Drawing of Conical Parts[D]. Xiangtan:Xiangtan University,2015.
［2］Zhang S H, Zhou L X, Wang Z T. Technology of sheet hydroforming with a movable female die[J]. Machine Tools and Manufacture, 2003, 43(8): 781-785.
［3］杨嵩.锥形件智能化拉深仿真系统的研究[D].秦皇岛：燕山大学，2009.Yang S. Research of Conical Workpiece Intelligent Deep Drawing Simulation System[D].Qinhuangdao:Yanshan University,2009.
［4］王博，张凯锋，赖小明，等. SiCp/2024Al复合材料板材脉冲电流辅助拉深成形[J]. 锻压技术，2012，37(5)：22-26.Wang B, Zhang K F, Lai X M，et al. Pulse current auxiliary deep drawing of SiCp/2024Al composites sheet[J]. Forging & Stamping Technology, 2012，37(5):22-26.
［5］万敏，杨玉英，李硕本. 圆锥形件冲压过程力学建模及数值解析[J]. 塑性工程学报,2000,7(4):20-23.Wan M, Yang Y Y，Li S B. Echanical modeling and numerical analysis of conical part stamping process[J]. Journal of Plasticity Engineering,2000,7(4):20-23.
［6］Wan M, Yang Y Y, Li S B. Determination of the limiting drawing coefficient in the deep drawing of conical cups[J]. Journal of Materials Processing Technology, 2001, 114(2): 114-117.
［7］秦泗吉,杨莉,盖玢玢.平面应力条件下轴对称拉深成形法兰区起皱和破裂分析[J]. 中国机械工程, 2014, 25(23): 3221-3226.Qin S J,Yang L,Gai F F. Analysis of wrinking in flange region and rupture in axisymmetric deep drawing under stress model[J]. China Mechanical Engineering, 2014, 25(23): 3221-3226.
［8］秦泗吉,邓超,杨莉,等.圆锥形件拉深成形应力应变的直接积分解法[J]. 中国机械工程, 2016, 27(2): 251-257.Qin S J, Deng C, Yang L, et al.A direct integral method to solve stress and strain of conical parts in deep drawing process[J]. China Mechanical Engineering, 2016, 27(2):251-257.
［9］孔晓华,秦泗吉,陆宏,等.圆锥形凹模径向分块压边拉深工艺实验研究[J]. 中国机械工程, 2015, 26(18): 2528-2532.Kong X H,Qin S J, Lu H, et al. Experimental research on deep drawing process using radial segmental blank holders with conical die[J]. China Mechanical Engineering, 2015, 26(18): 2528-2532.

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