Papers

Modelling of formation of stock surface and subsurface layers in breakdown rolling of aluminium alloy

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Modelling of formation of stock surface and subsurface layers in breakdown rolling of aluminium alloy Michal Krzyzanowski1, Michael F. Frolish1, W. Mark Rainforth1, John H. Beynon2 1Institute for Microstructural and Mechanical Process Engineering, The University of Sheffield S1 3JD, UK. 2Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, Hawthorn, VIC 3122, Australia. DOI: … Read more

Modelling of the kinetics of mx-type carbides precipitation process in low – carbon bainitic steels

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Modelling of the kinetics of mx-type carbides precipitation process in low – carbon bainitic steels Roman Kuziak, Valery Pidvysotskyy Instytut Metalurgii Żelaza im. St. Staszica, K. Miarki Street 12, 44-100 Gliwice, Poland. DOI: https://doi.org/10.7494/cmms.2007.1.0164 Abstract: The paper focuses on the modelling of MX-type carbides precipitation processes in low-carbon precipitation strengthend bainitic steels. The precipitation of … Read more

On partial hydrodynamic lubrication effects in the journal bearings

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On partial hydrodynamic lubrication effects in the journal bearings Tomasz Szolc, Włodzimierz Sosnowski Institute of Fundamental Technological Resrearch of the Polish Academy of Sciences 00-049 Warsaw, ul. Świętokrzyska 21. DOI: https://doi.org/10.7494/cmms.2007.1.0126 Abstract: The objective of this research is to include mixed friction effects into existing models of hydrodynamic journal bearings. The considerations in this paper … Read more

Influence of micro asperity-valley on the surface of forging tools on tribological conditions

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Influence of micro asperity-valley on the surface of forging tools on tribological conditions Hiroyuki Saiki, Yasuo Marumo, Liqun Ruan, Junpei Kozasa Department 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.2007.1.0127 Abstract: The relationship between apparent coefficient of friction, surface roughness and the yield stress … Read more

The use of an artificial neural network to estimate tool costs in cold roll-forming processes

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The use of an artificial neural network to estimate tool costs in cold roll-forming processes Anthony Downes, Peter Harley Department of Mechanical Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK. DOI: https://doi.org/10.7494/cmms.2006.3.0173 Abstract: The cold roll-forming industry is extremely competitive and the majority of work tenders that are submitted are unsuccessful. There are several … Read more

Simulation model of the finishing mill hydraulic gap control system

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Simulation model of the finishing mill hydraulic gap control system Beata Jakubiec Częstochowa University of Technology, Faculty of Electrical Engineering, al. Armii Krajowej 17, 42-200 Częstochowa, Poland. DOI: https://doi.org/10.7494/cmms.2006.3.0172 Abstract: This paper deals with a hydraulic gap control system modelling of four-high finishing mill. Control system model has been worked out on the basis of … Read more

Determination of drawbead contacts with variable bead penetration

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Determination of drawbead contacts with variable bead penetration N. K. B. Manjula, P. Nanayakkara, Peter D. Hodgson Centre for Material and Fibre Innovation Deakin University, Geelong, Victoria, Australia, 3217. DOI: https://doi.org/10.7494/cmms.2006.3.0171 Abstract: In stamping operations, the sliding of the sheet metal over the drawbeads is of great importance. The geometry of the drawbead and the … Read more

Forming limits of austenitic stainless steel sheets

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Forming limits of austenitic stainless steel sheets A.S. Korhonen, T. Manninen, K. Kanervo Helsinki University of Technology, P.O. Box 6200, 02015 HUT, Finland. DOI: https://doi.org/10.7494/cmms.2006.3.0170 Abstract: The forming limits of austenitic stainless steel sheets were studied. It was found that the observed limit of straining in stretch forming, when both of the principal stresses are … Read more

Thermal contact formulation based on the mortar method

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Thermal contact formulation based on the mortar method José M. A. César De Sá1, Sébastien Grégoire2, Philippe Moreau2, Dominique Lochegnies2 1Faculty of Engineering of the University of Porto Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal. 2Laboratoire d’Automatique, de Mécanique et d’Informatique Industrielles et Humaines, UMR CNRS 8530 Université de Valenciennes, Le Mont-Houy, Jonas 2 … Read more

Dimensional reduction for a lattice-like massspring polymer model using hp-adaptivity

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Dimensional reduction for a lattice-like massspring polymer model using hp-adaptivity Chetan Jhurani, Leszek Demkowicz Institute for Computational Engineering and Sciences The University of Texas at Austin, Austin, Texas 78712. DOI: https://doi.org/10.7494/cmms.2006.3.0168 Abstract: We present a method for dimensional reduction of the solution of the static equilibrium of a lattice-like network of point masses and harmonic … Read more