Papers

Influence of forging parameters on tool temperature in hot forging

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Influence of forging parameters on tool temperature in hot forging Akihiro Minami1, Yasuo Marumo2, Hiroyuki Tanaka2 , Liqun Ruan2 , Hiroyuki Saiki2 1Department of Mechanical Engineering, Ariake National College of Technology,150 Higashihagio, Omuta, Fukuoka 836-8585, Japan.2Department of Mechanical System Engineering, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan. DOI: https://doi.org/10.7494/cmms.2007.2.0145 … Read more

Discrete element modelling of rock cutting

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Discrete element modelling of rock cutting Jerzy Rojek Institute of Fundamental Technological Research,Swietokrzyska 21, 00-049 Warszawa, Poland. DOI: https://doi.org/10.7494/cmms.2007.2.0147 Abstract: The present paper presents modelling of rock cutting processes using the discrete element method. Numerical algorithm of the discrete element method employing cylindrical and spherical elements has been implemented and numerical simulation of rock cutting … Read more

Application of physical and mathematical modelling to analysis of different forging processes of constant velocity joint body

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Application of physical and mathematical modelling to analysis of different forging processes of constant velocity joint body Zbigniew Gronostajski1, Marek Hawryluk1, Karol Jaśkiewicz1, Adam Niechajowicz1, Sławomir Polak1, Sławomir Walczak2, Andrzej Woźniak2 1Wrocław University of Technology, Department of Plastic Forming Process Engineering, ul. Łukasiewicza 3/5, 50 371 Wrocław, Poland.2GKN Automotive, ul. Południowa 5, 56 400 Oleśnica. … Read more

Numerical study to identify the material parameters of a damage model

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Numerical study to identify the material parameters of a damage model Renée Schwartz1, Sylvie Castagne2, Anne Marie Habraken1 1University of Liège, ArGEnCo Department, MS2F Division.2Chemin des Chevreuils, 1 4000 Liège, Belgium. DOI: https://doi.org/10.7494/cmms.2007.2.0149 Abstract: In the continuous casting (CC) process, transversal cracks happen. This type of macroscopic damage is due to the process loading in … Read more

Modelling the mechanical properties of multiphase steels

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Modelling the mechanical properties of multiphase steels Corinna Thomser1, Ulrich Prahl1, Henk Vegter2, Wolfgang Bleck1 1Institute of Ferrous Metallurgy, RWTH Aachen University, Germany. 2Corus RD&T, IJmuiden, Netherlands. DOI: https://doi.org/10.7494/cmms.2007.1.0118 Abstract: Due to economic, environmental and safety reasons the use of high strength steels for the automotive industry is increasing rapidly. For an optimal combination of … Read more

Finite element analysis of die wear in hot forging considering industrial processes

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Finite element analysis of die wear in hot forging considering industrial processes Bernd-Arno Behrens, André Hundertmark IFUM Hannover. DOI: https://doi.org/10.7494/cmms.2007.1.0134 Abstract: The efficiency of hot forging processes significantly depends on the service life of the dies. As a consequence of thermal and mechanical interactions between workpiece and tool surfaces during the forming process, adhesive and … Read more

Creep-fatigue of multi-part container during hot extrusion of copper – simulation and experimental comparison

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Creep-fatigue of multi-part container during hot extrusion of copper – simulation and experimental comparison Friedrich Krumphals1, Thomas Wlanis1, Christof Sommitsch1,2, Christian Redl3 1Christian Doppler Laboratory For Materials Modelling And Simulation, University of Leoben, Franz-Josef-Strasse 18, 8700, Leoben, Austria. 2Chair of Metal Forming, University of Leoben, Franz-Josef-Strasse 18, 8700, Leoben, Austria. 3Böhler Edelstahl GmbH, Mariazellerstrasse 25, … Read more

Development of numerical tools for the multiscale modelling of recrystallisation in metals, based on a digital material framework

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Development of numerical tools for the multiscale modelling of recrystallisation in metals, based on a digital material framework Marc Bernacki, Yvan Chastel, Hugues Digonnet, Heba Resk, Thierry Coupez, Roland E. Logé Centre de mise en forme des matériaux (CEMEF), Ecole Nationale Supérieure des Mines de Paris,,UMR CNRS 7635, BP 207, 06904 Sophia Antipolis Cedex, France. … Read more

Modelling the hardenability and tempering of high strength steels

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Modelling the hardenability and tempering of high strength steels Johan Eliasson1, Tadeusz Siwecki1, Björn Rodell2 1Corrosion and Metals Research Institute, KIMAB Drottning Kristinas väg 48, S-114 28 Stockholm, Sweden. 2SSAB Oxelösund AB, Sweden. DOI: https://doi.org/10.7494/cmms.2007.1.0120 Abstract: The aim of the present work was to develop hardenability and tempering models for various quenching and tempering treatments … Read more

Modelling of brittle damage nucleation by means of ca

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Modelling of brittle damage nucleation by means of ca Krzysztof Nowak Cracow University of Technology, ul. Warszawska 24, 31-155 Krakow, Poland. DOI: https://doi.org/10.7494/cmms.2007.1.0136 Abstract: The description of damage nucleation in metals subjected to creep conditions, on the level of material structure, is proposed. In classical approach of mechanics it is achieved by introducing scalar (or … Read more