Melt Mold Casting Process Optimization of Train Coupler Based on ProCAST

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Abstract:

In order to solve production defects such as shrinkage and porosity inside a certain train coupler casting in Anhui Xinhong Machinery Co.,Ltd., the main reasons of defects are found through the process of CAE simulation analysis and physical X ray detection to determine the location and morphology of casting defects and to reflect the actual situation of coupler filling and solidification process. The main reasons are found as follows: uneven thickness of casting structure, insufficient original gating and feeding system and etc. Through the process optimization and apply multidimensional vibration, then test validation, the train coupler casting which meets the technical requirements has been successfully produced, ensuring the smooth mass production of the company. ProCAST numerical simulation results have confirmed the rationality of the proposed work in optimization process measures in reducing and eliminating the shrinkage defects.

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312-322

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February 2018

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© 2018 Trans Tech Publications Ltd. All Rights Reserved

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[1] L. X Lv. Common fault analysis of No. 13 coupler device [J]. Shanghai Railway Science & Technology. 1(2009): 31-32.

Google Scholar

[2] H. J Zhang, F. Yan, X. F Qin, Z.Q. Li, C.G. Tao, Z.X. Tan, X. Lu. Impact property of ZG25MnCrNiMo stell used for rail car coupler [J]. Heat Treatment of Metals. 7(2010)1-4.

Google Scholar

[3] X. Z, Wu Q, L. S, et al. Stabilizing mechanism and running behavior of couplers on heavy haul trains[J]. Chinese Journal of Mechanical Engineering, 2014, 27(6): 1211-1218.

DOI: 10.3901/cjme.2014.0905.146

Google Scholar

[4] WU Qing. The run-time behaviour of coupler/draft gear systems on heavy haul locomotives [D]. Cheng Du: Southwest Jiaotong University, 2012: 32-50.

Google Scholar

[5] Massa A, Stronati L, Aboubakr A K, et al. Numerical study of the noninertial systems: application to train coupler systems[J]. Nonlinear Dynamics, 2012, 68(1-2): 215-233.

DOI: 10.1007/s11071-011-0220-2

Google Scholar

[6] Wei L, Zeng J, Wang Q. Investigation of in-train stability and safety assessment for railway vehicles during braking[J]. Journal of Mechanical Science and Technology, 2016, 30(4): 1507-1525.

DOI: 10.1007/s12206-016-0304-5

Google Scholar

[7] F. Li, F.S. Z, G. Wang. etc. Numerical Simulation of Solidification Process for Impeller Investment Casting Based on ProCAST[J]. Hot Working Technology, 2013, 42(7): 55-57.

Google Scholar

[8] HU H, YANG M, Luo J, et al. Application of the software ProCAST in the casting of solidification simulation [J]. Materials Science and Technology, 2006, 3: 019.

Google Scholar

[9] Rywotycki M, Miłkowska-Piszczek K, Trębacz L. Identification of the boundary conditions in the continuous casting of steel[J]. Archives of Metallurgy and Materials, 2012, 57(1): 385-393.

DOI: 10.2478/v10172-012-0038-z

Google Scholar

[10] G.H. Guo. Process Improvement of tight-lock coupler based on numerical simulation [D]. BeiJing JiaoTong Univerdity, 2007: 41-48.

Google Scholar

[11] F. Li, F.Y. Zheng, Gang Wang. Numerical simulation of solidification process of impeller mold casting based on ProCAST[J]. Hot Working Technology. 7(2013)55-57.

Google Scholar

[12] N. Tang, Q.Y. Xu, B.C. Liu. Numerical simulation of investment casting process for heavy duty gas turbine blades[J]. Special Casting & Nonferrous Alloys. 11(2011)1028-1032.

Google Scholar

[13] B. Chen. Simulation: A review of the progress of foreign investment casting process numerical casting (11)[J]. 11(2015)683-686.

Google Scholar

[14] Sabau A S, Porter W D. Alloy shrinkage factors for the investment casting of 17-4PH stainless steel parts[J]. Metallurgical and Materials Transactions B, 2008, 39(2): 317-330.

DOI: 10.1007/s11663-007-9125-3

Google Scholar

[14] J.P. Luo. Numerical simulation and optimization of casting solidification process of coupler[D]. Harbin University Of Science And Technology. (2014)32-48.

Google Scholar

[16] Jones S, Yuan C. Advances in shell moulding for investment casting[J]. Journal of Materials Processing Technology, 2003, 135(2): 258-265.

DOI: 10.1016/s0924-0136(02)00907-x

Google Scholar

[17] J. Zhang, G. Wang, F.S. Zheng. Study on investment casting technology of high pressure water pump shell based on ProCAST [J]. Foundry. 11(2012) 1324-1326+ 1330.

Google Scholar