Papers

A comparison of models for ductile fracture prediction in forging processes

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A comparison of models for ductile fracture prediction in forging processes Cai Zheng, Jose M.A. Cesar De Sa, F.M. Andrade Pires IDMEC-Institute for Mechanical Engineering, Faculty of Engineering, University of Porto,Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal. DOI: https://doi.org/10.7494/cmms.2007.4.0180 Abstract: The possibility of predicting ductile fracture plays an important role in the design of … Read more

Explicit microscopic fatigue analysis of forged components

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Explicit microscopic fatigue analysis of forged components Marc Milesi, Yvan Chastel, Marc Bernacki, Roland E. Logé, Pierre-Olivier Bouchard CEMEF – ENSMP, Centre de Mise en Forme des Matériaux,,UMR CNRS 7635, BP 207, 06904 Sophia Antipolis Cedex, France. DOI: https://doi.org/10.7494/cmms.2007.4.0181 Abstract: Numerical modelling of fatigue behavior for anisotropic structures has become critical for design applications. This … Read more

Mapping microstructure in ac and psc testpieces deformed at high temperature

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Mapping microstructure in ac and psc testpieces deformed at high temperature Bryan Roebuck1, Ken P. Mingard1, Matthew Brooks1, Eric J. Palmiere2, Brad P. Wynne2, Matthew J. Thomas2 1NPL, Teddington, Middlesex, London, UK. 2IMMPETUS, Institute for Microstructural and Mechanical Process Engineering, The University of Sheffield, Sheffield, UK. DOI: https://doi.org/10.7494/cmms.2007.4.0182 Abstract: Good measurement infrastructure is vital for … Read more

Optimisation strategies to determine process parameters in tube hydroforming

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Optimisation strategies to determine process parameters in tube hydroforming Rosa Di Lorenzo, Giuseppe Ingarao, Fabrizio Micari Università di Palermo, Dipartimento di Tecnologia Meccanica, Produzione e Ingegneria Gestionale, Palermo. DOI: https://doi.org/10.7494/cmms.2007.3.0174 Abstract: In tube hydroforming the concurrent actions of pressurized fluid and mechanical feeding allows to obtain tube shapes characterized by complex geometries such as different … Read more

Comparison of mathematical models for the turbulent fluid flow, heat transfer and solidification in the continuous casting process

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Comparison of mathematical models for the turbulent fluid flow, heat transfer and solidification in the continuous casting process Rodrigo Ottoni Da Silva Pereira, Roberto Parreiras Tavares Federal University of Minas Gerais, Belo Horizonte, Brazil. DOI: https://doi.org/10.7494/cmms.2007.3.0175 Abstract: In the present work a mathematical model for the continuous casting process and its principal phenomena was developed. … Read more

On the support uml diagrams understanding during the software maintenance

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On the support uml diagrams understanding during the software maintenance Leszek Kotulski, Artur Basiura Department of Automatics, AGH – University of Science and Technology, al. Mickiewicza 30, Kraków, Poland,DRQ S.A., ul. Podwale 3, Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2007.3.0176 Abstract: “UML diagrams are generally accepted technique of supporting computing modeling and maintenance systems that are independent from … Read more

An influence of some process parameters on lateral forces in forging dies

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An influence of some process parameters on lateral forces in forging dies Andrzej Kocańda, Piotr Czyżewski Institute of Materials Processing, Warsaw University of Technology,Narbutta 85, 02-524 Warsaw, Poland. DOI: https://doi.org/10.7494/cmms.2007.2.0144 Abstract: The lateral forces are relatively high in production of nonsymmetrical or extended forgings what results in an offset of the upper and lower dies. … Read more

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