cmms

Computer aided design of manufacturing technology for copper-chromium alloys

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Computer aided design of manufacturing technology for copper-chromium alloys Jarosław Nowak1, Stanisław Węglarczyk1, Roman Kuziak2, Krzysztof Drozdowski3, Maciej Pietrzyk1 1AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland. 2Institute for Ferrous Metallurgy, ul. K. Miarki 12, 44-100 Gliwice, Poland. 3Zakład Obróbki Plastycznej, ul. Kuźnicza 13, 21-045 Świdnik k/Lublina, Poland. DOI: https://doi.org/10.7494/cmms.2008.4.0258 Abstract: … Read more

Three-dimensional upper bound analyses for extrusion from square billets through complex die-openings’ shapes

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Three-dimensional upper bound analyses for extrusion from square billets through complex die-openings’ shapes Joseph S. Ajiboye Department of Mechanical Engineering, University of Lagos, Lagos, Nigeria;,present address: KAIST Valufacture Institute of Mechanical Engineering, School of Mechanical,,Aerospace & Systems Engineering, Korea Advanced Institute of Science and Technology,Daejeon 305-701, Korea DOI: https://doi.org/10.7494/cmms.2008.4.0259 Abstract: A numerical model based on … Read more

Rectilinear viscoelastic flows in ducts

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Rectilinear viscoelastic flows in ducts Michel Beaulne1, Evan Mitsoulis2 1Department of Chemical Engineering, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada. 2School of Mining Engineering and Metallurgy, National Technical University of Athens, Zografou 157 80, Athens, Greece. DOI: https://doi.org/10.7494/cmms.2008.3.0195 Abstract: Axial flows in generalized ducts are studied for viscoelastic materials including a linear low-density polyethylene … Read more

Process simulation of stub shaft forging with local heating and cooling – an analysis with efg

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Process simulation of stub shaft forging with local heating and cooling – an analysis with efg Christoph Bröcker1, Kurt Steinhoff2, Anton Matzenmiller1 1Institute of Mechanics, Department of Mechanical Engineering, University of Kassel,,Mönchebergstr. 7, 34125 Kassel, Germany. 2Institute for Production Technology and Logistics, Chair of Metal Forming Technology,,University of Kassel, Kurt-Wolters-Str. 3, 34125 Kassel, Germany. DOI: … Read more

Homogenization of one dimensional elliptic system

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Homogenization of one dimensional elliptic system Paweł Mitkowski1, Wojciech Mitkowski2 1Faculty of Electrical Engineering, Automatics, Electronics and Computer Science, Akademia Górniczo-Hutnicza, al. Mickiewicza 30, 30-059 Kraków, Poland. 2Department of Automatics, Akademia Górniczo-Hutnicza al. Mickiewicza 30, 30-059 Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2008.3.0197 Abstract: The work presents problem of homogenization of one-dimenional mediums of periodic micrsotructure, and more … Read more

A finite element analysis of the superplastic blow-forming in an awl-shaped die with titanium alloy

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A finite element analysis of the superplastic blow-forming in an awl-shaped die with titanium alloy Dyi-Cheng Chen, Hsin-Neng Wang Department of Industrial Education and Technology, National Changhua University of Education, Changhua 500, Taiwan, R.O.C.. DOI: https://doi.org/10.7494/cmms.2008.3.0198 Abstract: This study employs commercial DEFORMTM 3D finite element analysis software to simulate the superplastic blowforming of Ti-6Al-4V titanium … Read more

Experimental study of v-bending process of steel-polymer-steel sheets at room temperature

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Experimental study of v-bending process of steel-polymer-steel sheets at room temperature Sergej Tipalin, Michael Nikitin, Nikolaj Shpunkin Moscow State Technical University “MAMI”, B.Semenovskay str. 38, 107023 Moscow, Russia. DOI: https://doi.org/10.7494/cmms.2008.3.0199 Abstract: The paper is linked to the investigation of formability of three-layer sheets. A sheet consists of two outer layers made of low carbon steel … Read more

A numerical study on the influence of bauschinger effect on springback in reverse bending

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A numerical study on the influence of bauschinger effect on springback in reverse bending Mehran Kadkhodayan, Iman Zafarparandeh Department of Mechanical Engineering, Ferdowsi University of Mashhad,,91775-1111, Mashhad, Iran. DOI: https://doi.org/10.7494/cmms.2008.3.0200 Abstract: It is essential to model the Bauschinger effect correctly for sheet metal forming process simulation and subsequent springback prediction when material points are subjected … Read more

A sensitivity analysis on artificial neural networks fracture predictions in sheet metal forming operations

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A sensitivity analysis on artificial neural networks fracture predictions in sheet metal forming operations Rosa Di Lorenzo, Giuseppe Ingarao, Fabrizio Micari Università di Palermo, Dipartimento di Tecnologia Meccanica, Produzione e Ingegneria Gestionale,,viale delle Scienze 90128, Palermo, Italy. DOI: https://doi.org/10.7494/cmms.2008.2.0188 Abstract: In the last years the investigation of formability limits in sheet metal forming operations was … Read more

Applicability of decision trees in manufacturing industry

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Applicability of decision trees in manufacturing industry Marcin Perzyk, Robert Biernacki, Artur Soroczyński Warsaw University of Technology, Institute of Materials Processing, Narbutta 85, 02-524 Warszawa. DOI: https://doi.org/10.7494/cmms.2008.2.0189 Abstract: In manufacturing companies large amounts of data are collected and stored, related to designs, products, equipment, materials, manufacturing processes etc. Utilization of that data for improvement of … Read more