留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

新淬火状态铝合金板的成形极限

高宏志 周贤宾

高宏志, 周贤宾. 新淬火状态铝合金板的成形极限[J]. 北京航空航天大学学报, 2006, 32(09): 1083-1086.
引用本文: 高宏志, 周贤宾. 新淬火状态铝合金板的成形极限[J]. 北京航空航天大学学报, 2006, 32(09): 1083-1086.
Gao Hongzhi, Zhou Xianbin. Forming limits for as-quenched aluminum alloy sheet[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(09): 1083-1086. (in Chinese)
Citation: Gao Hongzhi, Zhou Xianbin. Forming limits for as-quenched aluminum alloy sheet[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(09): 1083-1086. (in Chinese)

新淬火状态铝合金板的成形极限

基金项目: 教育部博士点基金资助项目(20040006022)
详细信息
    作者简介:

    高宏志(1974-),男,河北蔚县人,博士生,gaohongzhi@yeah.net.

  • 中图分类号: TG 389; V 261.2+8

Forming limits for as-quenched aluminum alloy sheet

  • 摘要: 论述了硬铝合金成形工艺中应变路径、固溶热处理和时效过程对成形极限的影响,由试验得到了单向拉伸预应变和固溶热处理后时效过程中的成形极限图FLD(Forming Limit Diagram),重点研究了固溶热处理后时效过程中成形极限的变化,并得到了铝合金在时效过程中的成形极限应力图FLSD(Forming Limit Stress Diagram).结果表明,原始退火状态材料的成形极限高于新淬火状态材料的成形极限,且新淬火状态材料的成形极限随时效时间增加而降低,原因主要在于固溶热处理过程中材料组织状态的变化和应变硬化指数n在时效过程中的降低;成形极限应变的降低导致成形极限应力也随时效时间增加而降低.

     

  • [1] 《中国航空材料手册》编辑委员会.中国航空材料手册(第三卷)[M].北京:中国标准出版社,2002 Aeronautical Materials Handbook of China Compilation Committee. Aeronautical materials handbook of China(third volume) [M]. Beijing:Standards Press of China, 2002(in Chinese) [2] 高宏志,周贤宾,李东升.硬铝合金预拉伸、热处理后成形性能的正交试验研究[J].航空材料学报,2004,24(4):1-7 Gao Hongzhi, Zhou Xianbin, Li Dongsheng. Drthogonal test study of formability for 2D12 alumininm alloy after pre-stretch and solution heat-treatment[J].Journal of Aeronautical Materials, 2004,24(4):1-7(in Chinese) [3] Graf A, Hosford W. Effect of changing strain path on forming limit diagram of Al2008-T4[J].Metallurgical Materials Transaction,1993,24A(9):2503-2512 [4] 谢英,万敏,韩非.成形极限应变与成形极限应力的转换关系[J].塑性工程学报,2004,11(3):55-58 Xie Ying, Wan Min, Han Fei. Transformation relation between limit strain and limit stress in sheet metal forming[J].Journal of Plasticity Engineering, 2004,11(3):55-58(in Chinese) [5] Obermeyer E J,Majlessi S A. A review of recent advances in the application of blank-holder force towards improving the forming limits of sheet metal parts[J]. Journal of Materials Processing Technology,1998(75):222-234 [6] Kleemola J, Pelkkikangas M T. Effect of an intrinsic forming limit of steel copper and brass[J]. Sheet Metal Industry,1977(63):591-599 [7] Arrieus R, Bdrin C, Boivin M. Determination of an intrinsic forming limit stress diagram for isotropic sheets P Timossi. 12th Biennial IDDRG Congress. Santa Margherita:International Deep Drawing Research Group, 1982:61-71 [8] 张京,周贤宾.板料成形极限应力图的研究 中国机械工程学会锻压学会.第七届全国锻压学术年会.北京:航空工业出版社,1999:299-302 Zhang Jing, Zhou Xianbin. Study of forming limit stress in sheet metal forming Chinese Mechanical Engineering Society Forging and Stamping Institution.The 7th China Conference on Foging and Stamping. Beijing:Aviation Industry Press,1999:299-302(in Chinese) [9] Gronostajski J. Sheet metal forming limits for complex strain paths[J]. Journal of Materials Processing Technology,1984 (10):349-362
  • 加载中
计量
  • 文章访问数:  2953
  • HTML全文浏览量:  33
  • PDF下载量:  1216
  • 被引次数: 0
出版历程
  • 收稿日期:  2005-10-25
  • 网络出版日期:  2006-09-30

目录

    /

    返回文章
    返回
    常见问答