Al-Mg-Si基合金车身板材成形极限及数值应用
Forming Limit of Al-Mg-Si Based Alloy Automotive Outer Sheet and Its Numerical Application
摘 要
采用成形极限图(FLD)试验,运用网格应变自动测试分析系统ASAME,对Al-Mg-Si基合金车身板的成形极限进行了检测,同时,将FLD应用于有限元分析作为成形时出现破裂缺陷的判据,并分析车门外板在冲压成形过程中破裂危险部位主应变在FLD上分布.结果表明：Al-Mg-Si基合金板材的成形极限高于目前常用的AA6111铝合金车身板;拉延筋的形状和位置对成形过程的影响很大,采用双曲面法设计车门可以改善车门腹部拉深不充分引起的刚度问题.
成形极限
有限元模拟
车门外板
Al-Mg-Si based alloy
forming limit
finite simulation
automotive outer door panel
Abstract
The forming limit of Al-Mg-Si based alloy sheet was tested and the forming limit diagram (FLD) was determined by using FLD test and automated strain analysis and measurement system (ASAME).The result of comparison analysis showed that the forming limit of Al-Mg-Si based alloy sheet was higher than that of AA6111 sheet at the same thickness and heat treatment state (T4).The above result was also applied to the commercial finite element analysis to serve for the fracture criterion during forming.Automotive door panel was investigated in order to test the application formability of Al-Mg-Si based alloy sheet.Through analysing the distribution of principal strain in FLD,it was found that the shape and position of brake bead played vital role in forming processing and the rigidity problem could be solved by using the double surface designing method.
中图分类号 TG386 V261
所属栏目
基金项目 河南省杰出人才创新基金资助项目(0321001100);河南省科技攻关资助项目(0224360015)
收稿日期 2005/1/28
修改稿日期 2005/3/30
网络出版日期
作者单位点击查看
备注林敦文(1979-),男,福建龙溪人,硕士研究生.
引用该论文: LIN Dun-wen,GUAN Shao-kang,LU Guang-xi,CHEN Jing-yang. Forming Limit of Al-Mg-Si Based Alloy Automotive Outer Sheet and Its Numerical Application[J]. Materials for mechancial engineering, 2006, 30(4): 64～67
林敦文,关绍康,卢广玺,陈晶阳. Al-Mg-Si基合金车身板材成形极限及数值应用[J]. 机械工程材料, 2006, 30(4): 64～67
被引情况:
【1】史晓亮,邵刚勤,段兴龙,杨华,王天国, "热压烧结制备高密度钨铜合金",机械工程材料 31, 37-39(2007)
【2】刘奎武,边 巍, "卡车用铝镁合金油箱盖板拉深成形的有限元模拟",机械工程材料 39, 95-97(2015)
【3】陈国亮, "使用陶瓷颗粒介质进行拉深成型",机械工程材料 32, 33-35(2008)
【4】董节功,周旭东,朱锦洪,王国宣,高全德,白振拴,孟惠霞, "径向锻造三维成形锻透性的数值模拟",机械工程材料 31, 76-78(2007)
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】关绍康,姚 波,王迎新.汽车铝合金车身板材的研究现状及发展趋势[J].机械工程材料,2001,25(5):12-14.
【2】Miller W S,Zhang L,Bottema J,et al.Recent development in aluminum alloys for the automotive industry[J].Materials Science and Engineering,2000,A280:37-49.
【3】Keeler S P.Determination of forming limits in automotive stampings[J].Sheet Metal Industries,1965,42:683-691.
【4】Goodwin G M.Application of strain analysis to sheet metal forming problems in the press shop[R].New York:Society of Automotive Engineers Technical Paper No.680093,1968.
【5】Graf A,Hosford W.The influence of strain-path changes on forming limit diagrams of AA6111-T4[J].Int J Mech Sci,1994,36:897-910.
【6】Raghavan K S.A simple technique to generate in-plane forming limit curve and selected applications[J].Mat Trans,1995,26A:2075-2084.
【7】万敏,胡运斌,谢 英,等.飞机蒙皮铝合金板材成形极限及应用[J].中国有色金属学报,2002,12(铝合金专辑):180-183.
【8】Chow C L,Yu L G,Tai W H,et al.Prediction of forming limit diagrams for AL6111-T4 under non-proportional loading[J].Int J Mech Sci,2001,43:471-486.
【9】杨曦.板料成形工艺参数影响的数值模拟研究及主要成形缺陷的计算机仿真[D].上海:上海交通大学,2001.
【10】Dynaform-PC Application Manual[M].Engineering Technology Associates,Inc,1999.
【11】王新华,袁联富.冲模结构图册[M].北京:机械工业出版社,2003.
【2】Miller W S,Zhang L,Bottema J,et al.Recent development in aluminum alloys for the automotive industry[J].Materials Science and Engineering,2000,A280:37-49.
【3】Keeler S P.Determination of forming limits in automotive stampings[J].Sheet Metal Industries,1965,42:683-691.
【4】Goodwin G M.Application of strain analysis to sheet metal forming problems in the press shop[R].New York:Society of Automotive Engineers Technical Paper No.680093,1968.
【5】Graf A,Hosford W.The influence of strain-path changes on forming limit diagrams of AA6111-T4[J].Int J Mech Sci,1994,36:897-910.
【6】Raghavan K S.A simple technique to generate in-plane forming limit curve and selected applications[J].Mat Trans,1995,26A:2075-2084.
【7】万敏,胡运斌,谢 英,等.飞机蒙皮铝合金板材成形极限及应用[J].中国有色金属学报,2002,12(铝合金专辑):180-183.
【8】Chow C L,Yu L G,Tai W H,et al.Prediction of forming limit diagrams for AL6111-T4 under non-proportional loading[J].Int J Mech Sci,2001,43:471-486.
【9】杨曦.板料成形工艺参数影响的数值模拟研究及主要成形缺陷的计算机仿真[D].上海:上海交通大学,2001.
【10】Dynaform-PC Application Manual[M].Engineering Technology Associates,Inc,1999.
【11】王新华,袁联富.冲模结构图册[M].北京:机械工业出版社,2003.
相关信息
