运输支板成形仿真及模具设计
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摘要
目的运输支板的曲线边较长,在钣金翻边过程中易开裂,为提高模具设计的合理性,避免重复试模、返修以及设计失败的风险,开展有限元仿真研究。方法使用仿真软件Pam-Stamp,并与模具实物、产品试验件相结合,确定单动压边、双动压边翻边两次成形工艺,并优化参数、设计新模具。结果新设计的模具经过产品试验件生产,无开裂问题,目前已用于正式产品生产。结论仿真结果的成形趋势与实际生产基本符合。在选择工艺、工装设计方案时,仿真结果具有较高的参考价值。
The curved edge of the transport support plate is long, and it is easy to crack in sheet metal flanging. To improve the rationality of die design and avoid the risk of repeated die testing, repairing and design failure, finite element simulation research was carried out. The simulation software Pam-Stamp was used in combination with the die and sample to determine the two forming processes of single-action blank holder and double-action blank holder, optimize the parameters were and design new die. The newly designed die has been manufactured by sample without cracking, and has been used in the production of formal products. The simulation results are in good agreement with the actual production.The simulation results have high reference value in selecting process and tooling design.
The curved edge of the transport support plate is long, and it is easy to crack in sheet metal flanging. To improve the rationality of die design and avoid the risk of repeated die testing, repairing and design failure, finite element simulation research was carried out. The simulation software Pam-Stamp was used in combination with the die and sample to determine the two forming processes of single-action blank holder and double-action blank holder, optimize the parameters were and design new die. The newly designed die has been manufactured by sample without cracking, and has been used in the production of formal products. The simulation results are in good agreement with the actual production.The simulation results have high reference value in selecting process and tooling design.
引文
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[2]HEIDUSCHKE K.Anelastic Isotropic Plastic Orthotropic Constitutive Model Based on Deviator Transformations[J].International Journal of Solids&Structures,1997,34(18):2339-2356.
[3]SHIN Y S,KIM H Y,JEON B H,et al.Prototype Tryout and Die Design for Automotive Parts Using Welded Blank Hydroforming[J].Journal of Materials Processing Technology,2002,130(2):121-127.
[4]MANABE K,AMINO M,NAKAMURA S.Fe Analysis on Local Thinning and Fracture Phenomenon in Hydroforming of Tubular Component[J].Advanced Technology of Plasticity,1999(2):1229-1234.
[5]WANG Z R.Numerical Simulation of Some New Integrated Hydroforming Process[J].Advanced Technology of Plasticity,1999(2):1253-1260.
[6]ZHANG S H,LANG L H,KANG D C,et al.Numerical Simulation of the Hydro-mechanical Deep Drawing Process[J].Advanced Technology of Plasticity,1999(2):1273-1278.
[7]HEIN P,GEIGER M.Advanced Process Control Strategies for the Hydroforming of Sheet Metal Pairs[J].Advanced Technology of Plasticity,1999(2):1267-1272.
[8]BOBBERT S.Process Limits for the Hydroforming of Sheet Metal Pairs[J].Advanced Technology of Plasticity,1999(2):1261-1266.
[9]DOHMANN F,HARTL C.Tube Hydroforming-research and Practical Application[J].Journal of Materials Processing Technology,1997,71(1):174-186.
[10]ZHAN M,YANG H,JIANG Z Q.A Study on a 3D Fe Simulation Method of the NC Bending Process of Thin-walled Tube[J].Journal of Materials Processing Technology,2002,129(1/2/3):273-276.
[11]AL-QURESHI H A.Elastic-plastic Analysis of Tube Bending[J].International Journal of Machine Tools&Manufacture:Design,Research and Application,1999,1(1):87-104.
[12]ELCHALAKANI M,ZHAO X L,GRZEBIETA R H.Plastic Mechanism Analysis of Circular Tubes under Pure Bending[J].International Journal of Mechanical Sciences,2002,6(6):1117-1143.
[13]WANG Xi,CAO Jian.Wrinkling Limit in Tube Bending[J].Journal of Engineering Materials and Technology,2001,4(4):430-435.
[14]古涛,鄂大辛,高小伟,等.管材弯曲成型的有限元模拟与实验分析[J].锻压装备与制造技术,2006(1):66-68.GU Tao,E Da-xin,GAO Xiao-wei,et al.Finite Element Simulation and Experimental Analysis of the Forming Process of Pipe-bending[J].China Metalforming Equipment&Manufacturing Technology,2006(1):66-68.
[15]白雪山,李雪罡,李小强,等.5B02铝合金管材数控弯曲成型试验与数值模拟研究[J].锻压技术,2015,40(7):68-72.BAI Xue-shan,LI Xue-gang,LI Xiao-qiang,et al.Experiment and Numerical Simulation Research on Numerical-controlled Bending for 5B02 Aluminum Alloy Tubes[J].Forging&Stamping Technology,2015,40(7):68-72.