SUS304/Al1050/SUS430复合板拉深成形中法兰受力分析及临界压边力研究
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摘要
SUS304/Al1050/SUS430(简称S/A/S)复合板在拉深中经常出现起皱。它不同于单层板,S/A/S复合板在拉深过程中还存在层与层之间力的传递,所以受力情况更复杂。为了研究该复合板在拉深过程中的临界压边力,对S/A/S板在拉深过程中的法兰受力进行了分析,并通过主应力法和能量法推导出三层复合板起皱的临界压边力模型。通过Dynaform软件对临界压边力模型进行了验证。研究发现模拟结果和理论临界曲线符合,证明理论模型是可靠的。这能为实际生产提供指导。
The wrinkling of SUS304/Al1050/SUS430(S/A/S) composite sheet often occurs in deep drawing. It is different from the single layer sheet. In the process of S/A/S composite sheet drawing, there is the force transfer between layers, so the force situation is more complex. In order to study the critical blank holder force of the composite sheet in drawing process, the flange force of the S/A/S sheet during drawing process was analyzed. The critical blank holder force model for wrinkling of three-layer composite sheet was derived by principal stress method and energy method. The critical blank holder force model was verified by Dynaform software. It is found that the simulation results agree with the theoretical critical curves, which proves that the theoretical model is reliable. This can provide guidance for actual production.
The wrinkling of SUS304/Al1050/SUS430(S/A/S) composite sheet often occurs in deep drawing. It is different from the single layer sheet. In the process of S/A/S composite sheet drawing, there is the force transfer between layers, so the force situation is more complex. In order to study the critical blank holder force of the composite sheet in drawing process, the flange force of the S/A/S sheet during drawing process was analyzed. The critical blank holder force model for wrinkling of three-layer composite sheet was derived by principal stress method and energy method. The critical blank holder force model was verified by Dynaform software. It is found that the simulation results agree with the theoretical critical curves, which proves that the theoretical model is reliable. This can provide guidance for actual production.
引文
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[2] Hutchinson J M.Physical aging of shape memory polymers based upon epoxy-thiol"click"systems[J].Polymer Testing,2018,65:480-490.
[3] Cao Y,Hutchinson J W.Wrinkling phenomena in neo-hookean film/substrate bilayers[J].Journal of Applied Mechanics,2012,79(3):1019-1022.
[4] Zhang L C,Yu T X,Wang R.Investigation of sheet metal forming by bending-Part IV:Bending and wrinkling of circular sheets pressed by a hemispherical punch[J].International Journal of Mechanical Sciences,1989,31(5):335-348.
[5] Senior B W.Flange wrinkling in deep-drawing operations[J].Journal of the Mechanics&Physics of Solids,1956,4(4):235-246.
[6] Yu T X,Zhang L C.The plastic wrinkling of an annular plate under uniform tension on its inner edge[J].International Journal of Mechanical Sciences,1988,28(11):729-737.
[7] Yossifon S,Tirosh J,Kochavi E.On suppression of plastic buckling in hydroforming processes[J].International Journal of Mechanical Sciences,1984,26(6/8):389-402.
[8]殷艳树.圆锥形件拉深成形智能化控制中侧壁起皱的研究[J].燕山大学学报,2008,32(4):330-333.
[9]张小会.复合板筒形件固体颗粒介质成形工艺研究[D].秦皇岛:燕山大学,2014.
[10] Geckeler J W.Plastisches Knickender Wandung von Hohlzylindern and einige andere faltungser scheinungen an schalenund blechen[J].Zamm Journal of Applied Mathematics&Mechanics Zeitschrift Fur Angewandte Mathematik And Mechanik,1928,8(5):341-352.
[11] Morovvati M R,Mollaei-Dariani B,Asadian-Ardakani M H.A theoretical,numerical,and experimental investigation of plastic wrinkling of circular two-layer sheet metal in the deep drawing[J].Journal of Materials Processing Technology,2010,210(13):1738-1747.
[12] Johnson W H,Meller P B.Engineering plasticity[M].New York:Van Nostrand Reinhold Co,1973.
[13] Hill R.Elastic properties of reinforced solids:some theoretical principles[J].Journal of the Mechanics&Physics of Solids,1963,11(5):357-372.
[2] Hutchinson J M.Physical aging of shape memory polymers based upon epoxy-thiol"click"systems[J].Polymer Testing,2018,65:480-490.
[3] Cao Y,Hutchinson J W.Wrinkling phenomena in neo-hookean film/substrate bilayers[J].Journal of Applied Mechanics,2012,79(3):1019-1022.
[4] Zhang L C,Yu T X,Wang R.Investigation of sheet metal forming by bending-Part IV:Bending and wrinkling of circular sheets pressed by a hemispherical punch[J].International Journal of Mechanical Sciences,1989,31(5):335-348.
[5] Senior B W.Flange wrinkling in deep-drawing operations[J].Journal of the Mechanics&Physics of Solids,1956,4(4):235-246.
[6] Yu T X,Zhang L C.The plastic wrinkling of an annular plate under uniform tension on its inner edge[J].International Journal of Mechanical Sciences,1988,28(11):729-737.
[7] Yossifon S,Tirosh J,Kochavi E.On suppression of plastic buckling in hydroforming processes[J].International Journal of Mechanical Sciences,1984,26(6/8):389-402.
[8]殷艳树.圆锥形件拉深成形智能化控制中侧壁起皱的研究[J].燕山大学学报,2008,32(4):330-333.
[9]张小会.复合板筒形件固体颗粒介质成形工艺研究[D].秦皇岛:燕山大学,2014.
[10] Geckeler J W.Plastisches Knickender Wandung von Hohlzylindern and einige andere faltungser scheinungen an schalenund blechen[J].Zamm Journal of Applied Mathematics&Mechanics Zeitschrift Fur Angewandte Mathematik And Mechanik,1928,8(5):341-352.
[11] Morovvati M R,Mollaei-Dariani B,Asadian-Ardakani M H.A theoretical,numerical,and experimental investigation of plastic wrinkling of circular two-layer sheet metal in the deep drawing[J].Journal of Materials Processing Technology,2010,210(13):1738-1747.
[12] Johnson W H,Meller P B.Engineering plasticity[M].New York:Van Nostrand Reinhold Co,1973.
[13] Hill R.Elastic properties of reinforced solids:some theoretical principles[J].Journal of the Mechanics&Physics of Solids,1963,11(5):357-372.