Abstract
This article presents a study of the effects of process parameters in bulk-forming bimetallic watchcase components using finite-element (FE) simulation. This study aimed to determine the suitable forming temperature T and ram speed S for attaining the complete die filling of bimetals. A complicated watchcase component made of 3-mm-thick AISI 316L stainless steel (SS316L) and 6-mm-thick 6063 aluminum alloy (AA6063) was used as the example. The processes were simulated with T of 400°C, 500°C, 600°C, 700°C, 800°C, and 900°C and S of 20 mm/s, 40 mm/s, and 60 mm/s. Although the AA6063 was not heated in the beginning, it flowed faster than the SS316L during the process, and hence, the incomplete die filling was found mainly in the SS316L region. To avoid the incomplete die filling and strengthen the intermetallic bond between two dissimilar metals, the T of 900°C was suggested. The S of 40 mm/s was recommended also because this could save much forming energy and prevent the damage of tools. The experimental verification was carried out under process conditions that were employed in the simulations. An infrared thermal imaging camera and a 300-ton mechanical press were used to monitor the T and testify the bulk-forming operation, respectively. The data acquired from the experiments, on average, agreed strongly with those predicted by the simulations. On the basis of the results in this study, engineers can gain a better understanding of bulk-forming bimetallic components and be able to determine the T and S efficiently for similar processes.
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P. Groche and D. Fritsche, Int. J. Mach. Tool. Manuf. 46, 1261 (2006).
P. Groche, D. Fritsche, E.A. Tekkaya, J.M. Allwood, G. Hirt, and R. Neugebauer, CIRP Ann-Manuf. Technol. 56, 635 (2007).
B.A. Behrens, E. Doege, S. Reinsch, K. Telkamp, H. Daehndel, and A. Specker, J. Mater. Process. Tech. 185, 139 (2007).
S.Z. Sapozhnikov, L.A. Perezhogin, and V.N. Kipriyanov, Met. Sci. Heat Treat. 24, 734 (1982).
D. Taylor and J. Pan, Int. J. Mater. Prod. Tech. 16, 430 (2001).
O. Yilmaz and H. Çelik, J. Mater. Process. Tech. 141, 67 (2003).
M. Şimşir, L.C. Kumruoğlu, and A. Özer, Mater. Des. 30, 264 (2009).
A.M. Torbati, R.M. Miranda, L. Quintino, S. Williams, and D. Yapp, J. Mater. Process. Tech. 211, 1112 (2011).
S. Yildirim and M.H. Kelestemur, Mater. Lett. 59, 1134 (2005).
K.K. Zhang, Y.L. Wang, H.X. Shi, H. Yu, and S. Liu, Mater. Sci. Eng. A 499, 97 (2009).
N. Kahraman, B. Gülenç, and F. Findik, J. Mater. Process. Tech. 169, 127 (2005).
S.A.A. Akbari Mousavi and P. Farhadi Sartangi, Mater. Des. 30, 459 (2009).
T. Altan, S.I. Oh, and H.L. Gegel, Metal Forming: Fundamentals and Applications (Materials Park, OH: ASM, 1983).
R. Neugebauer, K.D. Bouzakis, B. Denkena, F. Klocke, A. Sterzing, A.E. Tekkaya, and R. Wertheim, CIRP Ann-Manuf. Technol. 60, 627 (2011).
K. Osakada, K.K. Morib, T. Altan, and P. Groched, CIRP Ann-Manuf. Technol. 60, 651 (2011).
P. Groche, J. Stahlmann, J. Hartel, and M. Köhler, Tribol. Int. 42, 1173 (2009).
L. Manuel, J. Stahlmann, and P. Groche (Paper presented at Metal Forming 2012. Proceedings of 14th International Conference on Metal Forming 2012, Kraków, Poland, 2012).
A. Ahmad, and P. Groche, (Paper presented at NUMIFORM. Proceedings of 10th International Conference on Numerical Methods in Industrial Forming Processes, Pohang, Republic of Korea, 2010).
S. Berski, H. Dyja, G. Banaszek, and M. Janik, J. Mater. Process. Tech. 153–154, 583 (2004).
S. Berski, H. Dyja, A. Maranda, J. Nowaczewski, and G. Banaszek, J. Mater. Process. Tech. 177, 582 (2006).
S. Wohletz, M. Özel, and P. Groche, (Paper presented at New Developments in Forging Technology. Proceedings of International Conference on New Developments in Forging Technology, Stuttgart, 2013).
N.R. Chitkara and A. Aleem, Int. J. Mech. Sci. 43, 2833 (2001).
N.R. Chitkara and A. Aleem, Int. J. Mech. Sci. 43, 2857 (2001).
B.V. Krishna, P. Venugopal, and K. Prasad Rao, Mater. Sci. Eng. A. 407, 77 (2005).
I.J. Beyerlein, N.A. Mara, J. Wang, J.S. Carpenter, S.J. Zheng, W.Z. Han, R.F. Zhang, K. Kang, T. Nizolek, and T.M. Pollock, JOM 64, 1192 (2012).
C.A. Bronkhorst, J.R. Mayeur, I.J. Beyerlein, H.M. Mourad, B.L. Hansen, N.A. Mara, J.S. Carpenter, R.J. Mccabe, and S.D. Sintay, JOM 65, 431 (2013).
S. Raßbach and W. Lehnert, Comput. Mater. Sci. 19, 298 (2000).
T.F. Kong, L.C. Chan, and T.C. Lee, J. Mater. Process. Tech. 167, 472 (2005).
S.K. Mannam, V. Seetharman, and V.S. Raghunathan, Mater. Sci. Eng. 60, 79 (1983).
S. Sundaresan and K.G.K. Murti, Int. J. Joining. Mater. 5, 66 (1993).
C.M. Chen and R. Kovacevic, Int. J. Mach. Tool. Manuf. 44, 1205 (2004).
K. Bhanumurthy, R.K. Fotedar, D. Joyson, G.B. Kale, A.L. Pappachan, A.K. Grover, and J. Krishnan, Mater. Sci. Tech. Lond. 22, 321 (2006).
H. Suzuki, S. Hashizume, Y. Yabuki, Y. Ichihara, and S. Nakajima, Studies on the Flow Stress of Metals and Alloys (Tokyo: The Institute of Industrial Science, University of Tokyo, 1986).
Y.V.R.K. Prasad and S. Sasidhara, Hot Working Guide: A Compendium of Processing Maps (Materials Park, OH: ASM, 1997).
J. Fluhrer, DEFORM-3D Version 6.1 User’s Manual, (Columbus, OH: Scientific Forming Technologies Corporation, 2007).
F. Cverna, ed., ASM Ready Reference—Thermal Properties of Metals (Materials Park, OH: ASM, 2002).
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The work described in this article was supported by Grants from the Research Grant Council of the Hong Kong Special Administrative Region, China (Project No. PolyU 511511).
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Kong, T.F., Chan, L.C. Bulk-Forming Simulation of Bimetallic Watchcase Components. JOM 66, 2145–2155 (2014). https://doi.org/10.1007/s11837-014-1124-7
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DOI: https://doi.org/10.1007/s11837-014-1124-7