锻压技术

2024铝合金筒形件拉深成形试验与有限元仿真

英文标题：Cylindrical deep drawing test and finite element simulation of 2024 aluminum alloy sheet

作者：王巍刘春李东升

关键词：铝合金拉深凸耳回弹有限元

分类号：TP391.9；TG386

出版年,卷(期):页码：2014,39(11):1-5

摘要：

基于NUMISHEET 2002会议提出的杯形件拉深Benchmark试验方案，在5和30 kN两种压边力工况下，对2 mm厚2024铝合金板料的拉深性能、凸耳现象、回弹现象及板厚变化进行试验研究，采用 DYNAFORM 软件对拉深过程进行有限元仿真。试验和仿真结果比较表明，在两种不同压边力工况下，2024铝合金具有较好的拉深性能，拉深件均出现凸耳、回弹及板料厚度变化不均等现象。在与板料轧制方向成0°、90°、180°和270°产生了4个凸耳；在低压边力工况下，与板料轧制方向垂直方向回弹量最大，为3.14%；随着凸模行程的增加，拉深力增大，当凸模行程为26 mm时，拉深力呈平缓趋势。

Based on the Benchmark test scheme of a cylindrical cup deep drawing proposed by the NUMISHEET 2002 conference, the drawing properties, lug behavior, springback phenomenon and thickness variation of 2024 aluminum alloy sheet with 2 mm thickness were researched respectively under 5 and 30 kN blank holder force（BHF）conditions, and the drawing process was simulated by DYNAFORM software. Comparing the test with simulation results, 2024 aluminum alloy is of better drawing properties, and drawing parts have issues such as springback and lugs and uneven change of thickness under two different BHF conditions. Four lugs are produced along the sheet rolling direction 0°, 90°, 180° and 270°, and the maximum springback of transverse sheet rolling direction is 3.14% under low BHF conditions. Drawing force increases with the increasing of punch stroke, and when the punch stroke is 26 mm, the trend of drawing force is flat.

基金项目：

国家自然科学基金资助项目（50905008）

王巍（1978-），女，博士研究生，讲师

参考文献：

［1］朱向哲,林伟. 影响板料冲压成形质量因素的有限元分析[J].辽宁石油化工大学学报,2005,25(2):46-50.Zhu X Z, Lin W. Finite element analysis of quality factor influencing sheet drawing [J]. Journal of Liaoning University of Petroleum & Chemical Technology, 2005, 25(2):46-50.
［2］赵亦希,于忠奇. 汽车用铝合金板拉伸性能与成形能力的相关性[J].材料科学与工艺,2007,15(1):98-101.Zhao Y X, Yu Z Q. Correlation between uniaxial tension properties and form ability of automotive aluminum alloy sheet [J]. Materials Science & Technology, 2007, 15(1):98-101.
［3］杨平,周杰,朱若岭，等. 金属板料拉深回弹成因及回弹补偿研究[J].机械设计与制造, 2009，(9):134-136.Yang P, Zhou J, Zhu R L, et al. A study on the cause and compensation of sheet metal spring back during drawing process [J]. Machinery Design ＆ Manufacture, 2009，(9):134-136.
［4］周朝辉,吉卫,曹海桥，等. 5A06合金壳体拉深成形及性能评价[J].锻压技术,2013,38(3):38-40.Zhou Z H, Ji W, Cao H Q, et al. Drawing and performance evaluation of 5A06 alloy shell[J]. Forging & Stamping Technology, 2013,38(3):38-40.
［5］杨立军,齐艳梅,党新安. 基于DYNAFORM的筒形件拉深成形数值模拟技术[J].机械设计与制造, 2011, (10):228-230.Yang L J, Qi Y M, Dang X A. Technology of numerical simulation for deep drawing cylindrical parts based on DYNAFORM [J]. Machinery Design ＆ Manufacture, 2011, (10):228-230.
［6］徐虹,仝晓辉,谷诤巍, 等.顶端板拉深回弹控制与影响因素分析[J].模具工业,2014,40(1):26-30.Xu H, Tong X H, Gu Z W, et al. Control of drawing springback of top plate and analysis of influencing factors [J]. Die & Mould Industry, 2014, 40(1):26-30.
［7］闫康康,胡平,郭威. 铝合金板冲压成形Benchmark试验与有限元仿真[J].农业机械学报,2009,40(11):232-235.Yan K K, Hu P, Guo W. Benchmark test and FEM simulation of aluminum alloy sheet forming [J].Transactions of the Chinese Society for Agricultural Machinery, 2009,40(11):232-235.
［8］刘瑞军,褚亚旭,闫康康. 不同压边工况下汽车用高强度钢板拉深性能研究[J].农业机械学报,2011,42(10):230-234.Liu R J, Chu Y X, Yan K K. Deep draw-ability of high strength steel sheet under different blank holder force conditions [J]. Transactions of the Chinese Society for Agricultural Machinery, 2011, 42(10):230-234.
［9］孙成智,罗思东,王东川, 等.变压边力对铝合金板冲压成形的影响研究[J].塑性工程学报,2005,12(3):41-45.Sun C Z, Luo S D, Wang D C, et al. Mechanism investigation of variable blank-holder forces improving the formability of aluminum alloy sheets during sheet metal forming[J]. Journal of Plasticity Engineering, 2005,12(3): 41-45.
［10］王巍,李东升,李小强.铝合金板弯曲回弹试验与有限元仿真[J].锻压技术,2013,38(3):160-164.Wang W, Li D S, Li X Q. Test and FEM simulation of sheet metal bending springback [J]. Forging & Stamping Technology, 2013, 38(3):160-164.
［11］GB/T 15825.3—2008，金属薄板成形性能与试验方法第3部分：拉深与拉深载荷试验[S].GB/T 1582.3—2008, Sheet metal formability and test methods-Part 3: Drawing and drawing load test[S].
［12］傅建,赵侠,李金艳. 发动机罩外板拉深回弹的数值模拟分析[J].塑性工程学报,2007,14(5):5-9.Fu J, Zhao X, Li J Y. Numerical simulation about springback drawn engine hood panel [J]. Journal of Plasticity Engineering, 2007,14(5):5-9.

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