|
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.
|
|
基金项目：
|
|
|
|
作者简介：
|
|
|
|
参考文献：
|
[1]郭成.铝-钢复合板材的力学性能与拉深成形性能[J].机械工程学报,1995,31(6):91-95.
[2]Choongho Lee,Jian Cao.Shell element formulation of multi-step inverse analysis for axisymmetric deep drawing process[J].International Journal for Numerical Methods in Engi-neering,2001,(50):681-706.
[3]Takuda H,Mori K,Fuji moto H,et al.Prediction of form-ingli mit in deep drawing of Fe/Al laminated composite sheetsusing ductile fracture criterion[J].Journal of Materials Pro-cessing Technology,1996,(60):291-296.
[4]孙惠学,胡金华,李春科,等.方盒形件拉深弹塑性有限元分析[J].燕山大学学报,1998,22(3):210-213.
[5]刘永军,任中全,刘金衣.板材成形的有限元分析[J].煤矿机械,2001,(8):24-25.
[6]王凤琴,赵军,官英平.毛坯外形对盒形件拉深成形的影响[J].中国机械工程,2003,14(7):619-622.
[7]孙希延,李泉永,杨连发.板料拉伸成形数值模拟中动态接触的处理[J].模具工业,2002,(8):10-13.
[8]Mohammad Habibi Parsa,Katsuhiko Yamaguchi,Norio Takak-ur.Redrawing analysis of aluminum-stainless-steel(laminatedsheet)using FEMsi mulations and experi ments[J].Internation-al Journal of Mechanical Sciences,2001,(43):2331-2347.
[9]刘罡,包友霞,徐伟力,等.薄板拉延成形的固定压边间隙控制方式研究[J].金属成形工艺,2000,18(5):6-10.
[10]张海明,董湘怀,李志刚.板料成形模拟中压边力处理的研究[J].金属成形工艺,2001,19(5):8-10.
[11]宁爱林,刘学敏,申奇志.复合板的厚向异性问题[J].邵阳高等专科学校学报,2001,14(3):176-177.
[12]宁爱林,朱旭霞,彭大暑.不锈钢/铝合金/不锈钢多层复合板的成形性能[J].模具工业,2001:45-47.
[13]韩森和.冷冲压工艺及模具设计与制造[M].北京:高等教育出版社,2006.
|
|
服务与反馈：
|
|
【本网站尚未开通全文下载服务】【加入收藏】
|
|
|
|
