为探明高强钢冲压成形过程中的粘模机理，利用数值模拟与工艺试验相结合的方法系统评估了其宏观粘模行为。以高强钢SPFC590为研究对象，采用方盒拉深成形工艺，基于FEM?Archard磨损模型研究了弯曲－拉深复合变形模式下界面压力与滑移距离对粘模行为的影响规律。研究结果表明，方盒拉深过程中模具的宏观粘模行为主要集中在界面压力较大的拉深圆角与弯曲直边相接处附近，并随着拉深次数的增加（即滑移距离的增大），粘模量不断增大且不断向拉深方向扩展。同时，基于FEM?Archard磨损模型得到的粘模评估结果与方盒拉深试验结果相一致。
To determine the galling mechanism in HSS sheet metal forming, the macro?galling behaviors in square cup drawing process were assessed by combining with FEM and experiments. In this paper, the influences of contact pressure and sliding distance on macro?galling behavior in square?cup drawing process with SPFC590 are investigated based on the FEM?Archard wear model. The results show that the main galling zones are concentrated on the neighboring zone between drawing radii and bending straight where refers to the larger contact pressure, and the galling range grows downwards as the drawing numbers increases (which refers to the larger sliding distance). Besides, the experimental results fit well with our FEM?Archard wear model.
参考文献
| [1] | Dong W. Fan;Han S. Kim;Bruno C. De Cooman .A Review of the Physical Metallurgy related to the Hot Press Forming of Advanced High Strength Steel[J].Steel Research International,2009(3):241-248. |
| [2] | P. Groche;M. Christiany .Evaluation of the potential of tool materials for the cold forming of advanced high strength steels[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2013(1/2):1279-1285. |
| [3] | Hyunok Kim;Jihyun Sung;Frank E. Goodwin;Taylan Altan .Investigation of galling in forming galvanized advanced high strength steels (AHSSs) using the twist compression test (TCT)[J].Journal of Materials Processing Technology,2008(1/3):459-468. |
| [4] | 温诗铸;黄平.摩擦学原理[M].北京:清华大学出版社,2012:333-352. |
| [5] | N. Bay;D. D. Olsson;J. L. Andreasen .Lubricant test methods for sheet metal forming[J].Tribology International,2008(9/10):844-853. |
| [6] | Michael P. Pereira;Wenyi Yan;Bernard F. Rolfe .Sliding distance, contact pressure and wear in sheet metal stamping[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2010(11/12):1275-1284. |
| [7] | Michael P. Pereira;John L. Duncan;Wenyi Yan;Bernard F. Rolfe .Contact pressure evolution at the die radius in sheet metal stamping[J].Journal of Materials Processing Technology,2009(7):3532-3541. |
| [8] | Michael P. Pereira;Wenyi Yan;Bernard F. Rolfe.Wear at the die radius in sheet metal stamping[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2012:355-367. |
| [9] | CHRISTIANSEN S;De CHIFFRE L .Topographic char-acterization of progressive wear on deep drawing dies[J].Tribology Transactions,1997,40:346-352. |
| [10] | JENSEN M R;DAMBORG F F;NIELSEN K B et al.Applying the finite-element method for determination of tool wear in conventional deep-drawing[J].Journal of Materials Processing Technology,1998,83:98-105. |
| [11] | A. R. Shahani;I. Salehinia .Analysis of wear in deep-drawing process of a cylindrical cup[J].Journal of Materials Processing Technology,2008(1-3):451-459. |
| [12] | 于忠奇,陈新平,侯英苛,李淑慧.拉伸-弯曲条件下DP590钢板抗拉伤性能[C].第十二届全国塑性工程学术年会暨第四届全球华人塑性加工技术研讨会论文集,2011:102-104. |
| [13] | 侯英岢,张卫刚,于忠奇,李淑慧,陈新平.模具硬度对高强度钢板拉毛缺陷的影响规律研究[J].塑性工程学报,2008(06):43-47. |
| [14] | 陈新平,侯英岢,蒋浩民,孙芳钟,鲍平.薄板成形中模具硬度对拉毛影响的实验研究[J].锻压技术,2008(02):31-33. |
| [15] | 王成勇,鲁志兵,张鹏,李亨,李伟.高强钢弯曲凹模型面接触应力分布及演化[J].塑性工程学报,2014(02):102-107. |
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