Affiliation:
1. University Constantin Brancusi of Targu-jiu
2. University Constantin Brancusi of Targu Jiu
Abstract
It is proposed to study the state of deformation of the material subjected to cutting technological operations. The study is based on finite deformation theory, according to which an elementary sphere imagined in the material subjected to deformation is transformed into an elementary ellipsoid. It used the method of grids or networks division applied semi-finished which was cut by two types of punches made from improved, unused OSC 10 and used OSC 10 after 15.000 cuttings. Also are analyzed the metallographic structures of the samples that are in different stages of penetration of the active cutting tool in semi-finished material. It is observed the deformation, the appearance and the structure for the action of the both punches on the semi-finished.
Publisher
Trans Tech Publications, Ltd.
Reference8 articles.
1. N. Chandrasekaran, A new computational strategy for analyzing plastic deformation processes, Bulletin of Materials Science, Volume 15, Issue 4, August 1992, pp.321-331.
2. A. Stancioiu, S. Sontea, Studies/investigations concerning the durability of the nitride cutting tools within the technological process of the punching/stamping, Vrnjacka Banja, Yugoslavia, Volume 2, 01-04 september 2002, pp.408-412.
3. K. Narasimhan, R. H. Wagoner, Finite element modeling simulation of in-plane forming limit diagrams of sheets containing finite defects, Metallurgical Transactions A, Volume 22, Issue 11, November 1991, pp.2655-2665.
4. C. Ciocîrdia, Cold pressing technology, Didactic and Pedagogic Publishing, Bucharest, (1991).
5. W. F. Hosford, R. M. Caddell, Metal forming, mechanics and metallurgy, Cambridge University Press, (2007).