网站首页期刊简介编委会过刊目录投稿指南广告合作征订与发行联系我们English
基于滑移线法求解的板料拉深凸缘区的应力
英文标题:Stress of sheet metal in drawing flange area solved by slipline method
作者:张晗 王敏 赵军 张丽桃 
单位:北华航天工业学院 
关键词:拉深 单位流动拉应力 滑移线法 凸缘区  微元体 
分类号:TG301
出版年,卷(期):页码:2018,43(6):71-73
摘要:

在金属板料拉深工艺设计中,拉深力的计算通常采用经验公式,不同参考资料上的经验公式有时差别很大。而滑移线法是求解理想刚塑性金属材料塑性变形力的方法之一。介绍了用滑移线法求解拉深力的方法,通过对金属板料拉深时凸缘区进行受力分析,利用滑移线理论建立了变形区的滑移线场,依据屈服准则和滑移线的沿线特性求解出了金属板料拉深时凸缘区的单位流动拉应力的计算公式,进而能够求出总变形力。通过实例进行了验证,滑移线法得到的拉深力是61 kN,经验公式法得到的拉深力是63 kN,结果表明,根据滑移线法求解的应力计算出来的拉深力符合工程要求,能够实现设备吨位的选择。
 

In the design of sheet metal drawing process, empirical formulas are usually used to calculate the drawing force, which are sometimes very different from different resources. However, slipline method is one of methods to solve the plastic deformation force for rigidperfectly plastic material. Then, a method of solving drawing force by slipline method was introduced, force analysis was carried out on flange area of sheet metal drawing and the slipline field of deformation zone was built by slipline theory. Furthermore, the calculating formula of unit flow tension was solved based on the yield criterion and the characteristics along slipline, and the total deformation force was obtained. Through the verification with examples, the drawing force of 61 kN was obtained by slipline method and 63 kN was obtained by empirical formula. The results show that drawing force calculated by the stress according to slipline method meets the engineering requirement, which can realize the choice of equipment tonnage.

基金项目:
河北省自然科学基金资助项目(E2013409002);廊坊市科技支撑计划项目资助(2016011081);北华航天工业学院科研基金重点项目资助(ZD-2016-03);华南理工大学国家金属材料近净成形工程技术研究中心开放基金资助项目(2011010)
作者简介:
张晗(1979-),女,硕士,讲师;Email:zhanghan790108@163.com
参考文献:


[1]胡心平,苏合新,王言德,等.基于DYNAFORM的汽车前防撞梁支撑板的拉延模具设计
[J].锻压技术,2017,42(9):118-122.


Hu X P, Su H X, Wang Y D, et al. Design on drawing die of automotive front anticollision beam support plate based on DYNAFORM
[J]. Forging & Stamping Technology,2017,42(9):118-122.



[2]胡成武,崔双好,李文元,等.变间隙拉深对圆筒形件拉深制耳影响的试验研究
[J].塑性工程学报, 2016,23(2):75-80.


Hu C W, Cui S H, Li W Y, et al. Experiment study on drawing earing of cylindrical cups by variable gap deep drawing
[J]. Journal of Plasticity Engineering,2016,23(2):75-80.



[3]刘海渔. 抽头外壳连续拉深模设计与制造
[J].锻压技术,2015,40(12):97-101.


Liu H Y. Design and manufacture of the continuous drawing mold for the tap shell
[J]. Forging & Stamping Technology,2015,40(12):97-101.



[4]江荧,彭炎荣.复杂滑移线场的三种理论求解方法及其应用
[J].常州工学院学报,2013,26(3-4):32-38.


Jiang Y, Peng Y R. Three solving processes for construction of the complex slipline fields and their application
[J]. Journal of Changzhou Institute of Technology,2013,26(3-4):32-38.



[5]严志远,雷步芳,李永堂,等. 基于滑移线理论计算板料弯曲变形力
[J].机械工程与自动化, 2011,(5):176-178.


Yan Z Y, Lei B F, Li Y T, et al. Calculation of deforming force of sheet metal bending based on slipline theory
[J]. Mechanical Engineering ﹠ Automation,2011,(5):176-178



[6]祖方遒.材料成形基本原理
[M].北京:机械工业出版社,2016.


Zu F Q. Fundamentals of Materials Forming Processes
[M]. Beijing:China Machine Press,2016.



[7]潘成刚,王华昌,王凯封,等.基于滑移线理论的工件塑性区的确定方法
[J].塑形工程学报, 2004,11(5):75-77.


Pan C G, Wang H C, Wang K F, et al. Determination of plastic section of workpiece based on the slipline field theory
[J]. Journal of Plasticity Engineering, 2004,11(5):75-77.



[8]官英平,王凤琴.板料弯曲变形应力的滑移线解法
[J].金属成形工艺,2002,20(6):16-18.


Guan Y P, Wang F Q. Slipline solution of bending stress to sheet metal
[J]. Metal Forming Technology,2002,20(6):16-18.



[9]钟毓斌.冲压工艺与模具设计
[M].北京:机械工业出版社, 2010.


Zhong Y B. Stamping Process and Mold Design
[M]. Beijing:China Machine Press,2010.

服务与反馈:
本网站尚未开通全文下载服务】【加入收藏
《锻压技术》编辑部版权所有

中国机械工业联合会主管 北京机电研究所有限公司 中国机械工程学会塑性工程分会主办
联系地址:北京市海淀区学清路18号 邮编:100083
电话:+86-010-62920652 +86-010-82415085 传真:+86-010-62920652
E-mail: fst@263.net(稿件) dyjsjournal@163.com(广告)
京ICP备09032115号-5