Finite Element Simulation and Experimental Study on Defects in CuZn40Pb2 Brass Alloy Water Valve Covers During Hot Forging M. Ceviz, I. Cetintav∗ Department of Electric and Energy, Trakya University, Edirne 22300, Turkey ∗ isikcetintav@trakya.edu.tr Keywords: hot forging, brass, simulation This study aimed to analyze the numerical simulation of the closed die hot forging process of a CuZn40Pb2 brass alloy water valve cover. The hot forging process of the brass alloy water valve cover, carried out in a conventional single stroke forging press, was found to result in various defects in the material geometry. The primary factors influencing these defects were identified as the temperature of the cylindrical billet and the die[1]. To investigate and optimize these factors, finite element simulations were conducted utilizing Deform 3D software, encompassing considerations such as geometry and force. [2]. Observations revealed that lubricant application reduced the coefficient of friction, improving material flow and minimizing defects in the valve cover during the hot forging process[3]. Thorough analysis of experimental processes and finite element simulations identified the causes of defects in the die and valve cover. Results showed the significant influence of temperature and friction coefficient on forging defects, enabling optimization of forging parameters. The experimental findings were consistent with the simulation results, enhancing understanding of the hot forging process for the CuZn40Pb2 brass alloy water valve cover and providing insights for process optimization and defect prevention. References [1] Poloczek, Ł., et al. (2021) Physical and Numerical Simulations of Closed Die Hot Forging and Heat Treatment of Forged Parts. Materials, 14. [2] Ji, H., et al., (2020). DRX behavior and microstructure evolution of 33Cr23Ni8Mn3N: Experiment and finite element simulation. J. Mater. Res. Technol., 9(3): p. 4340-4355. [3] Dworzak, Ł., M. Hawryluk, and M. Janik (2021). The Impact of the Lubricant Dose on the Reduction of Wear Dies Used in the Forging Process of the Valve Forging. Materials, 14(1), 212. 114
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