Transactions of Materials and Heat Treatment

Title：Analysis on local vertical force during the process of sheet metal incremental forming

Authors： Cai Gaipin Chen Zongyu Jiang Zhihong

Unit： Jiangxi University of Science and Technology

KeyWords： incremental forming strain analysis horizontal force vertical force

ClassificationCode：TG386

year,vol(issue):pagenumber：2014,39(9):31-35

Abstract：

According to the hierarchical processing characteristics of sheet incremental forming, forces that formed in local area were analyzed in the process of incremental forming and divided into horizontal force and vertical force. Based on the different strains caused by each feed, reasonable hypothesis and simplification were given and the vertical force was expressed when the material of each layer was machined. Furthermore, the shortcoming of general calculation and mismatch with actual hierarchical processing was avoided and the forming force model for every layer was set up accurately. Comparing the calculated results with the experimental data, it is proved that the vertical force produced from every layer can be calculated accurately through the calculated model.

Funds：

国家自然科学基金资助项目（50975131）

蔡改贫（1964-），男，博士，教授，硕士生导师

Reference：

［1］周六如.金属板料数控渐进成形机理及工艺的研究[D]. 武汉：华中科技大学，2004.Zhou L R. The Research of Sheet Metal Numerical Control Incremental Forming Mechanism And Process[D]. Wuhan: Hua zhong University of Science and Technology,2004.
［2］彭大署.金属塑性加工原理[M].长沙：中南大学出版社,2004.Peng D S. Principle of Metal Plastic Processing[M].Changsha:Central South University Press,2004.
［3］高光藩，丁信伟.轴对称胀形双曲金属薄壳非线性静力分析[J]. 工程力学，2007，24(8)：72-76.Gao G F,Ding X W. Nonlinear static analysis of axisymetric bulged hyperbolic thin-metal shell[J]. Engineering Mechanicai,2007，24(8):72-76.
［4］孙东继，林建平，胡巧声,等.金属板料幂指型硬化模型应变强化系数K值研究[J]. 塑性工程学报，2009，16(1)：149-152.Sun D J, Lin J P,Hu Qiaosheng, et al. Research on strength coefficient in power hardening model of sheet metal[J]. Journal of Plasticity Engineering,2009，16(1):149-152.
［5］胡志忠，曹淑珍.形变硬化指数与强度的关系[J].西安交通大学学报,1993，27(6)：71-75.Hu Z Z, Cao S Z. Relation between strain-hardening exponentand strength[J]. Journal of Xi'an Jiao Tong University,1993，27(6):71-75.
［6］尚福林，王子昆.塑性力学基础[M].西安：西安交通大学出版社，2011.Shang F L, Wang Z K. Plastic Mechanics[M]. Xi'an:Xian Jiao Tong University Press,2011.
［7］廖强.金属板材多点复合渐进成形控制系统研究[D]. 赣州：江西理工大学,2010.Liao Q. The Research of Sheet Metal Multi-Point Composite Incremental Forming Control System[D]. Ganzhou:Jingbang University of Science And Technology,2010.
［8］蔡改贫，朱宏亮，姜志宏. 板材多点对称式渐进成形过程模拟研究[J].锻压技术,2012，37(6)：26-29.Cai G P，Zhu H L，Jiang Z H. Simulation research on plate multi-point symmetric type incremental forming process[J].Forging & Stamping Technology,2012，37(6)：26-29.
［9］蔡改贫，廖强，姜志宏. 板材多点渐进成形控制系统设计[J].锻压技术,2013，38(5)：42-45.Cai G P，Liao Q，Jiang Z H. Design of control system for sheet metal multi-point incremental forming[J].Forging & Stamping Technology,2013，38(5)：42-45.

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