LPDC Process Optimization of Copper-Alloy Taps Based on CAE Technique

Abstract:

Low pressure die casting (LPDC) process of a copper-alloy tap was simulated by the finite element software ProCAST. The casting defect and its reason were analyzed. The optimized design was discussed and the simulation was validated against the low pressure die casting experiment. Results showed that the main defect is misrun and its reason is that the melt solidifies too fast. It’s well solved by increasing the wall thickness of the relational pipe properly. The result agrees with the experiment.

• Periodical: Advanced Materials Research (Volumes 479-481)
• Pages: 2457-2461
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.479-481.2457
• Online since: February 2012
• Authors: Lei Tian, Qing Feng Wang, Hui Zhen Duan, Jiang Nan Shen, Yan Ping Li
• Keywords: Computer Aided Engineering (CAE), Copper Alloy, LPDC, Process Optimization

References

[1] Y.-M. Deng Y.C. Lam,S,B.Tor and G.A. Britton. A CAD-CAE Integrated Injection Molding Design System.ENGINEERING WITH COMPUTERS. Vol. 18(2002),Num.1,p.82

DOI: 10.1007/s003660200007

[2] D.M. Maijer,w.s.Owen R.A. Vetter.An investigation of predictive control for aluminum wheel casting via a virtual process model.Journal of Processing Thecnology[J].2009:1965-1979

DOI: 10.1016/j.jmatprotec.2008.04.057

[3] B.Zhang, D.M. Maijer, S.L. Cockcroft.Development of a 3-D thermal model of the low-pressure die-cast (LPDC) process of A356 aluminum alloy wheels. Materials Science and Engineering.[J].2007:295-305

DOI: 10.1016/j.msea.2007.02.018

[4] K..Anzai.A Cast CAE System with Flow and Solidification Simulation to Wheel Casting. Proceedings of Modeling of Casting and Solidification Processes[J],1995:279-286

[5] K.Kubo.SCAST-Integrated Simulation System for Casting Design.Proceedings of Modeling of Casting and Solidification Processes[J],1995:173-181

[6] Liqiang Zhang,Luoxing,Li,shiuping Wang and Biwu Zhu.Optimization of LPDC Process Parameters Using the Combination of Artificial Neural Network and Grnrtic Algrithm Method.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE.2011.

DOI: 10.1007/s11665-011-9933-0

[7] Khajed,Ehsan,Shi,Xinmei,Maijer,Daan M.Modeling the formation of porosity during low pressure die casting(LPDC) of aluminum a356. Shape Casting:3rd Intranal Symposium 2009,pp.297-304

[8] Zhang,b.Cockcroft,S.L,Maijer D.M. Zhu J.D.A thermal model of the Low-Pressure-Die-Casting(LPDC)process and its application to predict porosity formation in aluminum alloy wheels.  TMS Annual Meeting, v 2006, pp.111-120

DOI: 10.1016/j.msea.2007.02.018

[9] Zhang Liqiang,Li Luoxing, Zhu Biwu.Simulation study on the LPDC process for thin-walled aluminum alloy casting. Materials and Manufacturing Processes, v 24, n 12, pp.1349-1353, December (2009)

DOI: 10.1080/10426910902997159

[10] Mi Guofa,Liu Xiangyu,Wang Kuangfei1,Niu, Jitai. Materials Science Forum, v 575-578 PART 2, pp.1389-1395, 2008.