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板料凸起成形的底部压缩拉深法
英文标题:Study on bottom compression-drawing of boss deforming on plate
作者:林启权 张学兵 王振球 
单位:湘潭大学 
关键词:凸起成形 底部压缩拉深法 数值模拟 Deform-3D 
分类号:TG386
出版年,卷(期):页码:2010,35(6):53-57
摘要:

介绍了凸起成形的一种新加工方法——底部压缩拉深法。利用有限元软件Deform-3D对薄板上凸起成形过程进行了数值模拟,分析了初始板厚、摩擦条件、背压对加工载荷和凸起高度的影响。结果表明:初始板厚、摩擦条件、背压对加工载荷和凸起高度有明显影响。初始板料越厚,极限凸起高度越高,缩孔缺陷越难发生;摩擦系数越小,极限凸起高度越高,越容易产生缩孔缺陷;施加的背压越大,极限凸起高度越高,越容易产生缩孔缺陷。选取合适的加工条件,可避免缩孔缺陷。

Bottom compression-drawing was introduced for boss deforming as a new processing method. Numerical simulation of boss deforming on the thin plate was made by means of finite element software Deform-3D. The affect of initial plate thickness, friction and backpressure on the load and boss height was analysed. The simulation result shows that the initial thickness, friction and back pressure have significant influence on the processing load and boss height; while the initial plate becomes thicker, the ultimate value of boss height increases and shrinkage defects reduces. As the friction coefficient decreases, the ultimate value of boss height increases and shrinkage defects occurres easily. The larger the backpressure is, the bigger the ultimate value of boss height and the less shrinkage defects will be. Shrinkage defects can be avoided if the parameters are appropriately chosen.

基金项目:
湖南省科技厅项目(2009WK3045)
作者简介:
参考文献:


[1]大贺乔一郎.分流方式によゐ精密型鍛造加工の研究\[A\].日本机械学会论文集C篇[C].东京,1982.
[2]Sequeira P D, Yoshimi Watanabe, Yasuyoshi Fukui.Backward extrusion of Al-Al3Ti functionally graded material: Volume fraction gradient and anisotropic orientation of Al3Ti platelets[J].Scripta Materialia,2005,53:687692.
[3]Shin T J,Lee  Y H, Yeom  J T,et al. Process optimal design in non-isothermal backward extrusion of a titanium alloy by the finite element method[J]. Comput. Methods Appl. Mech.Engrg.,2005,194: 38383869.
[4]Hura K D,Choib Y, Yeoc H T.A design method for cold backward extrusionusing FE analysis[J]. Finite Elements in Analysis and Design,2003,40:173185.
[5] 张学兵,林启权,王志刚,等.凸起成形的底部压缩拉深法研究[J].热加工工艺,2009,(23):148151.
[6]王平,崔建忠.金属塑性成形力学[M].北京:冶金工业出版社.2006.
[7]许兰贵,王自勇,阮峰. 超薄板料多次拉深成形数值模拟关键问题处理[J]. 锻压技术, 2009, 34(5): 3032.
[8]Kobayashi S,Oh  SI,Altan  T. Metal forming and the finite-element method[M].USA: Oxford University Press,1989.
[9]林新波.Deform-2D和Deform-3D CAE软件在模拟金属塑性变形过程中的应用[J].模具技术,2000,(3):7580.
[10]Saboori M,Bakhshi-Jooybari  M,Noorani-Azad  M,et al. Experimental and numerical study of energy consumption in forward and backward rod extrusion[J].Journal of Materials Processing Technology,2006, 177(13):612616.
[11]刘胜林.板料精冲与挤压复合成形研究[D]. 武汉:武汉理工大学,2007.

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