锻压技术

基于MSC.MARC的板材多点渐进成形数值模拟研究

英文标题：Research on numerical simulation of plate multi-point incremental forming based on MSC.MARC

作者：蔡改贫姚子茂熊洋王俊

单位：江西理工大学

关键词：板材多点渐进成形数值模拟

分类号：TG306

出版年,卷(期):页码：2015,40(3):36-40

摘要：

板材多点渐进成形过程复杂、影响因素多，各种参数的选择对成形质量和效率有很大影响。在MSC.MARC环境中对四棱锥体的多点渐进成形过程建立了有限元模型，建立相应的实验方案，探讨了板材在渐进成形过程中不同参数对等效应变的影响情况，并对分布情况进行了分析。研究结果表明：进给量的增大使得等效应变随之增大，离工具头越近的点影响越显著；进给速度增大使得等效应变随之增大，但增大到一定的数值以后，对等效应变的影响显著降低；成形角度对于等效应变的影响不大。

For the complex deformation and numerous influenctial factors in plate multi-point incremental forming process, the selection of different parameters has a great influence on the quality and efficiency of the forming process. The finite element model of multi-point incremental forming process for pyramidal cone was established by MSC.MARC software, and then the test scheme was designed accordingly. The influences of different parameters on equivalent strain were studied and their distributions were analyzed. The results show that the equivalent strain increases with the increasing amount of feed and becomes more significant when the point is closer to the tool. Although the equivalent strain increases with the increasing speed of feed, the influences will decrease significantly when the feed speed increases to a certain extend, and the forming angle has little influence on the equivalent strain.

基金项目：

国家自然科学基金资助项目(50975131)

蔡改贫(1964-)，男，博士，教授

参考文献：

［1］松原茂夫.板材の逐次张出し·绞り成形[A].平成7年度塑性加工春季讲演会论文集[C].东京：日本塑性加工学会，1995．Matsuhara Shigeo.Sheet sequential forming·Mixed forming[A]. The Proceedings of Plastic Processing Spring Lecture at HeiSei 7 year
［C］.Tokyo：1995.
［2］崔振，高霖，陆启建. 复杂钣金零件渐进成形方法[J].机械工程学报，2007，43（12）：235-239.Cui Z,Gao L,Lu Q J. Increment forming methods on complicated sheet part[J].Chinese Journal of Mechanical Engineering,2007,43(12):235-239.
［3］莫建华，韩飞. 金属板材数字化渐进成形技术研究现状[J]. 中国机械工程，2008,19(4）：491-497.Mo J H, Han F.State of the arts and latest research on incremental sheet NC forming technology[J]. China Mechanical Engineering, 2008,19(4）：491-497.
［4］Yamashit A M, Got Oh M, Atsumi S Y. Numerical simulation of incremental forming of sheet metal[J]. Journal of Materials Processing Technology, 2008, 199:163-172.
［5］蔡改贫，朱宏亮，姜志宏，等. 板材多点对衬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.
［6］龚学鹏，李明哲，胡志清. 连续多点成形过程中应力应变场数值分析 [J]. 北京理工大学学报，2008,28（12）：1043-1047.Gong X P, Li M Z, Hu Z Q. Numerical analysis on the stress and strain fields of continuous multi-point forming process[J]. Transactions of Beijing Institute of Technology, 2008,28（12）：1043-1047.
［7］周杰，胡建标，张旭，等. 两道次板材渐进成形过程仿真与实验验证[J].重庆大学学报，2011,36（7）：46-50.Zhou J, Hu J B, Zhang X. Numerical simulation and experimental investigation of double-stage sheet incremental forming[J]. Journal of Chongqing University,2011,36（7）：46-50.
［8］刘振勇，李亚光，李大水. 5754-H111铝合金板材成形极限实验及数值模拟[J].锻压技术，2014，39（1）：35-40.Liu Z Y, Li Y G, Li D S. Forming limit experiment and numerical simulation of 5754-H111 aluminum alloy sheet[J]. Forging & Stamping Technology, 2014，39（1）：35-40.

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