由于Y型三通管结构不对称,内高压成形过程中左右冲头的轴向补料比对成形有较大的影响.利用数值模拟,基于Dynaform软件平台,建立了Y型三通管弹塑性模型,并利用该模型研究了镁合金Y型三通管热态内高压成形过程、塑性变形规律、失稳行为、各种成形缺陷以及补料比对成形的影响.结果表明；成形后零件左侧圆角过渡区壁厚最大,支管顶部壁厚最薄；随着补料比的增加,支管高度也随之增加,并在一定程度上能改善支管的壁厚减薄,但过度加大补料比会使支管顶部减薄严重.
参考文献
| [1] | Muammer Koc;Taylan Altan .An overall review of the tube hydroforming (THF) technology[J].Journal of Materials Processing Technology,2001(3):384-393. |
| [2] | 苑世剑.现代液压成形技术[M].北京:国防工业出版社,2009:4-9. |
| [3] | 渊泽定克.日本内高压成形技术进展[J].塑性工程学报,2007(05):171-179. |
| [4] | G. Nefussi;A. Combescure .Coupled buckling and plastic instability for tube hydroforming[J].International Journal of Mechanical Sciences,2002(5):899-914. |
| [5] | Ken-ichi Manabe;Masamitsu Suetake;Hiroshi Koyama;Ming Yang .Hydroforming process optimization of aluminum alloy tube using intelligent control technique[J].International Journal of Machine Tools & Manufacture: Design, research and application,2006(11):1207-1211. |
| [6] | P. Ray;B. J. Mac Donald .Experimental study and finite element analysis of simple X- and T-branch tube hydroforming processes[J].International Journal of Mechanical Sciences,2005(10):1498-1518. |
| [7] | P. Ray;B.J. Mac Donald .Determination of the optimal load path for tube hydroforming processes using a fuzzy load control algorithm and finite element analysis[J].Finite elements in analysis & design,2004(2):173-192. |
| [8] | B.J.Mac Donald;M.S.J.Hashmi .Three-dimensional finite element simulation of bulge forming using a solid bulging medium[J].Finite elements in analysis & design,2001(2):107-116. |
| [9] | Suwat Jirathearanat;Christoph Hartl;Taylan Altan .Hydroforming of Y-shapes--product and process design using FEA simulation and experiments[J].Journal of Materials Processing Technology,2004(1):124-129. |
| [10] | TANG Ze-jun,LIU Gang,HE Zhu-bin,YUAN Shi-jian.Wrinkling behavior of magnesium alloy tube in warm hydroforming[J].中国有色金属学报（英文版）,2010(07):1288-1293. |
| [11] | 查微微 .镁合金管材力学性能环向拉伸测试方法[D].哈尔滨工业大学,2007. |
| [12] | 徐爱军 .AZ31镁合金管材热态内高压成形极限的研究[D].哈尔滨:哈尔滨工业大学,2006. |
| [13] | 张彦敏,张学宾,宋志真.Y型三通管液压胀形工艺分析及有限元数值模拟[J].矿山机械,2008(24):88-91. |
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