柔性压辊拉形中压辊下压位移量的数值解析

李永丰; 付文智; 李明哲

doi:10.7652/xjtuxb201401014

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柔性压辊拉形中压辊下压位移量的数值解析

更新时间：2025-07-09

- 柔性压辊拉形中压辊下压位移量的数值解析
- Numerical Solution of Press Amount of Roller in Flexible Roller Stretch Forming
- 西安交通大学学报 2014年48卷第1期页码：84-89+122
- 作者机构：
  
  吉林大学无模成形技术开发中心,长春,130025
- 作者简介：
- 基金信息：
  
  : 2013-04-16。作者简介: 李永丰(1987—),男,硕士生;付文智(通信作者),男,教授,博士生导师。基金项目: 欧盟第六框架协议计划国际合作项目(ASTS-CT-2006-030877)
- DOI：10.7652/xjtuxb201401014
  中图分类号： TG386.3
- 网络首发：2014-01-10，
  
  纸质出版：2014
- 稿件说明：
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李永丰, 付文智, 李明哲. 柔性压辊拉形中压辊下压位移量的数值解析[J]. 西安交通大学学报, 2014,48(1):84-89+122.

Numerical Solution of Press Amount of Roller in Flexible Roller Stretch Forming[J]. 2014, 48(1): 84-89+122.
李永丰, 付文智, 李明哲. 柔性压辊拉形中压辊下压位移量的数值解析[J]. 西安交通大学学报, 2014,48(1):84-89+122. DOI： 10.7652/xjtuxb201401014.

Numerical Solution of Press Amount of Roller in Flexible Roller Stretch Forming[J]. 2014, 48(1): 84-89+122. DOI： 10.7652/xjtuxb201401014.

摘要

利用柔性压辊拉形的几何关系

得出了使板料完全贴模时压辊的最小下压量及其所对应的板料最小延伸率

并根据不同截面上板料在拉伸方向延伸率相等的原则

建立了压辊最大下压量与延伸率的关系。采用位移加载对08AL马鞍形件和球面件的成形过程进行了数值模拟

并与力加载的成形结果进行了对比

结果表明:位移加载成形曲面件的等效应力和等效塑性应变分布更均匀

成形质量更稳定。利用柔性压辊拉形装置拉伸成形了马鞍形件和球面件

结果表明

采用数值计算所得的压辊下压位移量进行加载是可行的。与力加载相比

压辊下压位移量的数值求解方法可快速计算出对应于不同延伸率时各个压辊加载所需的下压位移量

节省了加载力的调试时间

可应用于柔性压辊拉形工艺参数的调试。

Abstract

Utilizing the geometrical relationship of flexible roller stretch forming

the minimum press amount of roller and the corresponding minimum sheet elongation were calculated in the case of completer sheet-die joint. Noting that the elongations of a sheet in stretching direction are equal in different cross sections

the relationship of the maximum press amount and elongation was established. The forming processes of 08AL saddle-shaped and spherical parts were simulated by displacement loading method

and the result was compared with the analytical result of the force loading. It reveals that the distributions of both the equivalent stress and equivalent plastic strain of the curvature parts obtained by the displacement loading method are more uniform

and the forming quality more stable. The saddle-shaped and spherical parts were formed by a flexible roller stretch forming device

and the experiment shows that the numerical solution to displacement loading is feasible. The required displacement of each roller corresponding to different elongations can be quickly calculated with shorter force load debugging period. The proposed method could be applied to debugging the parameters of flexible roller stretch forming process.

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references

张彦敏, 周贤宾. 蒙皮拉形加载轨迹优化[J]. 北京航空航天大学学报, 2007, 33(2): 201-205.

ZHANG Yanmin, ZHOU Xianbin. Optimization of loading trajectory in skin stretch forming process[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(2): 201-205.

CAI Zhongyi, WANG Shaohui, XU Xudong, et al. Numerical simulation for the multi-point stretch forming process of sheet metal[J]. Journal of Materials Processing Technology, 2009, 209: 396-407.

申丽娟, 杨军, 赵宇. 基于方差传递模型的飞机蒙皮拉形工艺稳健设计[J]. 机械工程学报, 2011, 47(1): 145-151.

SHEN Lijuan, YANG Jun, ZHAO Yu. Robust design of aircraft skin stretch forming process based on transmitted variance model[J]. Chinese Journal of Mechanical Engineering, 2011, 47(1): 145-151.

付文智, 朱必章, 张昊晗, 等. 柔性压辊拉伸成形球形件的解析法[J]. 吉林大学学报: 工学版, 2012, 42(4): 930-935.

FU Wenzhi, ZHU Bizhang, ZHANG Haohan, et al. Analytic method for stretch forming spherical part with flexible roller[J]. Journal of Jilin University: Engineering and Technology Edition, 2012, 42(4): 930-935.

WANG Shaohui, CAI Zhongyi, LI Mingzhe. Numerical simulation on the local stress and local deformation in multi-point stretch forming process[J]. Int J Adv Manuf Technol, 2012, 60: 901-911.

白笛, 周贤宾, 李东生, 等. 飞机复杂蒙皮拉形数值模拟系统开发及关键技术研究[J]. 航空学报, 2004, 25(6): 606-610.

BAI Di, ZHOU Xianbin, LI Dongsheng, et al. Key technology research and system development of complex aircraft skin stretch forming simulation[J]. Acta Aeronautical et Astronautic Sinica, 2004, 25(6): 606-610.

LIU Wei, YANG Yuyong, LI Mingzhe. Numerical simulation of multi-point stretch forming and controlling on accuracy of formed workpiece[J]. Int J Adv Manuf Technol, 2010, 50: 61-66.

张昊晗, 李明哲, 付文智, 等. 多辊下压式拉形柔性浮动夹持数值模拟与实验[J]. 农业机械学报, 2012, 43(6): 230-234.

ZHANG Haohan, LI Mingzhe, FU Wenzhi, et al. Numerical simulation and experiment of flexible floating clamping in multi-roll stretch forming process[J]. Transactions of the Chinese Society for Agricultural Machinery, 2012, 43(6): 230-234.

李永丰, 丛晓霜, 何鑫华, 等. 柔性压辊拉形中回弹的数值模拟[J]. 塑性工程学报, 2010, 17(6): 46-50.

LI Yongfeng, CONG Xiaoshuang, HE Xinhua, et al. Numerical simulation research on springback of flexible-roller stretch forming[J]. Journal of Plasticity Engineering, 2010, 17(6): 46-50.

曹金凤, 石亦平. ABAQUS有限元分析常见问题解答[M]. 北京: 机械工业出版社, 2009.

彭赫力,刘纯国,李明哲.马鞍面件柔性夹钳多点拉形实验与数值模拟[J].2012,46(5):109-113.[doi:10.7652/xjtuxb 201205019]

范淑琴,赵升吨,张琦,等.直角法兰双辊夹持扩旋成形有限元模型的确定[J].2010,44(5):66-70.[doi:10.7652/xjtuxb 201005014]

谭富星,许旭东,李光俊,等.柔性夹持多点拉形过程的数值模拟[J].2008,42(9):1160-1164.[doi:10.7652/xjtuxb 200809021]

谭富星,李明哲,蔡中义,等.钛合金网板多点成形起皱缺陷的数值模拟[J].2007,41(9):1026-1030.[doi:10.7652/xjtuxb200709005]

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