双金属板拉深性能影响因素的模拟及分析  

Numerical simulation and analysis of effect factors on deep-drawing property for bimetal-laminated sheet

作　　者：邹冬平[1] 刘勇[1] 

机构地区：[1]江西蓝天学院电子与制造系,江西南昌330029

出　　处：《锻压技术》2008年第2期120-124,共5页Forging & Stamping Technology

摘　　要：双金属叠层板由于其特殊的结合特性以及组员金属材料在力学性能上存在差异,导致该复合材料板拉深成形比单一金属板复杂,且影响其拉深成形性能的因素也较多。本文用ANSYS软件模拟了不锈钢/铝双金属叠层板在不同压边条件以及组员金属层不同厚度比的情况下的拉深成形过程,分析研究了压边和金属层厚度比对双金属叠层板拉深性能的具体影响。结果表明,采用适当的压边力和压边间隙均能有效地改善双金属叠层板在拉深过程中起皱现象的发生,并且不锈钢和铝金属层厚度比为3∶1时该类叠层板的拉深性能较好。Bimetal-laminated sheet deep-drawing is much more complicated than single sheet due to its special combined technology and the differences between the mechanics characteristics of two component metals, and there are many effect factors on its deep-drawing property. Deep-drawing process of stainless-steel-aluminum sheet was simulated under different setting conditions and different thickness ratios of the two component metals based on the elastic-plastic code ANSYS software, and the influences of the setting condition and metal thickness ratio on the bimetal-laminated sheet deep-drawing property were discussed. The result shows that both appropriate blank-holder force and appropriate blank-holder gap can avoid wrinkling on bimetal-laminated sheet deep-drawing effectively, and the deep-drawing property of this kind of sheet is better when the thickness ratio of stainless-steel layer to aluminum layer is 3 ： 1.

关 键 词：双金属叠层板 拉深性能 数值模拟 ANSYS 

分 类 号：TG386.32[金属学及工艺—金属压力加工]