Computer aided design of the best tr forging technology for crank shafts

Łukasz Sztangret¹ , Andrzej Milenin¹, Mateusz Sztangret¹, Wojciech Walczyk², Maciej Pietrzyk¹, Jan Kusiak¹

¹AGH-University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland. ²Metal Forming Institute, Jana Pawła II nr 14, 61-139, Poznań, Poland.

DOI:

https://doi.org/10.7494/cmms.2011.2.0338

Abstract:

Improvement of the TR crank shaft forging technology is the objective of the paper. New concept of forging of crank shafts is considered. Plastometric tests were performed for steels used for manufacturing of crank shafts and a rheological model for these steels was determined. This model was implemented in the finite element software and simulations of various variants of forging were performed. Results of simulations were used to select the best variant, which gives the lowest loses of the material and proper shape of the final product. Two technological parameters are selected as the optimization variables. Finite element simulations of the forging process for various values of the selected parameters were performed. Optimization of the forging process is performed using the surface response methodology. Optimal forging parameters are given in the paper.

Cite as:

Sztangret, Ł., Milenin, A., Sztangret, M., Walczyk, W., Pietrzyk, M., & Kusiak, J. (2011). Computer aided design of the best tr forging technology for crank shafts. Computer Methods in Materials Science, 11(2), 237 – 242. https://doi.org/10.7494/cmms.2011.2.0338

Article (PDF):

Keywords:

Forging of crank shafts, Finite element method, Inverse analysis

References:

Chenot, J.-L., Bellet, M., 1992, The viscoplastic approach for the finite-element modelling of metal forming processes, in Numerical Modelling of Material Deformation Proc¬esses, (eds) Hartley, P., Pillinger, I., Sturges, C.E.N., Springer-Verlag, London, Berlin, 179-224.

Hansel, A., Spittel, T, 1979, Kraft- und Arbeitsbedarf Bildsamer Formgebungs-verfahren, VEB Deutscher Verlag fur Grundstoffindustrie, Leipzig.

Hoff, N.J., 1954, Approximate Analysis of structures in the presence of moderately large steps deformation, Quart, Appl. Meek, 2, 49.

Milenin, A., Walczyk, W., Pietrzyk, M., 2009, Numeryczna analiza procesu kucia wałów korbowych, Rudy Metale, 54, 748-753 (in Polish).

Myers, R.H., Montgomery, D.C., 1995, Response Surface Meth-odology: Process and Product Optimization Using De-signed Experiments, New York.

Norton, F.H., 1929, Creep of Steel at High Temperature, McGraw Hill, New York.

Rut, T., Walczyk, W., 2000, Doskonalenie kucia wałów korbo-wych metodą TR, Obróbka plastyczna Metali, 11, 5-8. (in Polish).

Rut, T., Walczyk, W., 2002, Rozwój metody TR – urządzenia typu TR do kucia wałów korbowych, Archiwum Techno¬logii i Automatyzacji, 22, Część I: 177-186; Część II: 187-196. (in Polish).

Szeliga, D., Gawąd, J., Pietrzyk, M., 2006, Inverse analysis for identification of Theological and friction models in metal forming, Comp. Meth. Appl. Mech. Engrg., 195, 6778-6798.

Walczyk, W., Milenin, A., Pietrzyk, M., 2010, Computer aided design of new forging technology for crank shafts, Steel Res. Int., 81, n/a. doi: 10.1002/srin.201000121.