Title: Limiting upsetting conditions in a three-slide forging press

Authors: Wieslaw Stefan Weronski, Andrzej Gontarz, Zbigniew Pater

Addresses: The Lublin University of Technology, Nadbystrzycka 36, Lublin 20-618, Poland. ' The Lublin University of Technology, Nadbystrzycka 36, Lublin 20-618, Poland. ' The Lublin University of Technology, Nadbystrzycka 36, Lublin 20-618, Poland

Abstract: The aim of this research was to determine the limiting values of upsetting ratio in the free upsetting processes and in the cylindrical impression in a Three-Slide Forging Press (TSFP). Obtaining the assumed aim was based mainly on experimental research made on lead. The limiting values of upsetting ratio were determined on the basis of obtained results. Experimental researches were preceded by numerical simulations based on Finite Element Method (FEM). It was stated, however, that they have limited usefulness in the case of the analysis of the processes in which the limiting phenomenon is buckling. The obtained results concerning the limiting conditions of the analysed processes constitute the basis for designing of elongated forgings with thickening. The research results presented in this paper constitute a part of original, systematical research of forgings manufacturing in a prototype forging press with three working slides. [Received 31 March 2006; Accepted 15 March 2007]

Keywords: manufacturing; processing; plastic forming; three-slide forging press; TSFP; upsetting ratio; limiting values; simulation; finite element method; FEM; elongated forgings.

DOI: 10.1504/IJCMSSE.2007.016431

International Journal of Computational Materials Science and Surface Engineering, 2007 Vol.1 No.3, pp.383 - 403

Published online: 28 Dec 2007 *

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