轿车水槽零件拉延破裂成为稳定生产的主要障碍,采用网格试验法深入分析了毛坯在成形过程中危险部位的变形性质、变形路径、变形大小及安全裕度.用有限元数值模拟与试验分析方法确定出水槽零件破裂的危险区域,通过优化拉延筋高度和毛坯几何尺寸显著地增加了危险区域的安全裕度,提高了生产稳定性.
参考文献
| [1] | SWIFT H W .Plastic Instability Under Plane Stress[J].Journal of the Mechanics and Physics of Solids,1952,1:1-18. |
| [2] | HILLR .On Discontinuous Plastic States with SpecialReference to Localized Necking in Thin Sheets[J].Journal of the Mechanics and Physics of Solids,1952,1:19-30. |
| [3] | MARCINIAK Z;KUCZYNSKI K .Limit Strains in theProcesses of Stretch - Forming Sheet Metal Int[J].Journal of Mach Sci,1967,9:609-620. |
| [4] | SOREN S;RICE J R .Localised Necking in ThinSheets[J].Journal of the Mechanics and Physics of Solids,1975,23:421-441. |
| [5] | 後藤學.弹塑性構成式的一形式[A].,1983(49):92-95. |
| [6] | KEELER P.Circular Grid System -a Valuable Aid forEvaluating Sheet Metal Formability[J].SAE Transactions,1968(680092):371-379. |
| [7] | GOODWIN M.Application of Strain Analysis to SheetMetal Forming Problems in the Press Shop[J].SAE Transactions,1968(680093):380-387. |
| [8] | 汪承璞,冯苏宁,陆匠心.轿车零件应变分析与FLD选材预测[J].钢铁,1999(02):43-46. |
| [9] | 崔令江.汽车覆盖件结构特征与冲压成形性[J].塑性工程学报,2001(02):11-13. |
| [10] | 谭善锟.CA7220轿车薄板冲压件成形分类试验研究[J].汽车工艺与材料,1999(05):15-21. |
| [11] | Hongzhi D.;Zhongqin L. .Investigation of sheet metal forming by numerical simulation and experiment[J].Journal of Materials Processing Technology,2000(3):404-410. |
| [12] | Zhou D;WAGONER R H .Development and Application of Sheet Forming Simulation[J].Journal of Materials Processing Technology,1995,50(01):1-16. |
| [13] | MAKINOUCHI A .Sheet Metal Forming in Industry[J].Journal of Materials Processing Technology,1996,60:19-26. |
| [14] | 王凤琴,赵军,官英平,马丽霞.盒形件拉深过程中法兰区应力解析[J].哈尔滨工业大学学报,2003(04):488-490. |
| [15] | 田浩彬,康达昌.拉伸试件几何因素对延伸率影响的研究[J].哈尔滨工业大学学报,2003(08):962-965. |
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