Stress Analysis in the Extrusion of Bimetallic Tubes

Stress analysis of the flow of a bimetallic tube in the process of extrusion through a conical die is presented in this paper. Two materials are involved in the process, one of them being of lower thickness and exhibiting finer properties than the other. The stress field is determined by assuming an...

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Main Authors: J.L. Alcaraz, J.M. Martínez-Esnaola, J. Gil-Sevillano
Format: Article
Language:English
Published: Institute of Fundamental Technological Research 2015-06-01
Series:Engineering Transactions
Online Access:https://et.ippt.pan.pl/index.php/et/article/view/679
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author J.L. Alcaraz
J.M. Martínez-Esnaola
J. Gil-Sevillano
author_facet J.L. Alcaraz
J.M. Martínez-Esnaola
J. Gil-Sevillano
author_sort J.L. Alcaraz
collection DOAJ
description Stress analysis of the flow of a bimetallic tube in the process of extrusion through a conical die is presented in this paper. Two materials are involved in the process, one of them being of lower thickness and exhibiting finer properties than the other. The stress field is determined by assuming an axially-symmetric radial flow and material incompressibility, with no velocity discontinuity along the material interface and including friction between the bimetallic tube and the tools. Different extrusion conditions and different material combinations are compared to assess their influence on the stress levels in critical zones for the two possible locations of the finer material. It is concluded that the most influential parameters seem to be the yield stress ratio and the friction with the die.
format Article
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institution Kabale University
issn 0867-888X
2450-8071
language English
publishDate 2015-06-01
publisher Institute of Fundamental Technological Research
record_format Article
series Engineering Transactions
spelling doaj-art-ef86ebcb21074022853bf3eb9031d7ad2025-08-20T03:49:54ZengInstitute of Fundamental Technological ResearchEngineering Transactions0867-888X2450-80712015-06-0145110.24423/engtrans.679.1997Stress Analysis in the Extrusion of Bimetallic TubesJ.L. Alcaraz0J.M. Martínez-Esnaola1J. Gil-Sevillano2Escuela Tecnica Superior de Ingenieros, BilbaoUniversidad de Navarra, San SebastianUniversidad de Navarra, San SebastianStress analysis of the flow of a bimetallic tube in the process of extrusion through a conical die is presented in this paper. Two materials are involved in the process, one of them being of lower thickness and exhibiting finer properties than the other. The stress field is determined by assuming an axially-symmetric radial flow and material incompressibility, with no velocity discontinuity along the material interface and including friction between the bimetallic tube and the tools. Different extrusion conditions and different material combinations are compared to assess their influence on the stress levels in critical zones for the two possible locations of the finer material. It is concluded that the most influential parameters seem to be the yield stress ratio and the friction with the die.https://et.ippt.pan.pl/index.php/et/article/view/679
spellingShingle J.L. Alcaraz
J.M. Martínez-Esnaola
J. Gil-Sevillano
Stress Analysis in the Extrusion of Bimetallic Tubes
Engineering Transactions
title Stress Analysis in the Extrusion of Bimetallic Tubes
title_full Stress Analysis in the Extrusion of Bimetallic Tubes
title_fullStr Stress Analysis in the Extrusion of Bimetallic Tubes
title_full_unstemmed Stress Analysis in the Extrusion of Bimetallic Tubes
title_short Stress Analysis in the Extrusion of Bimetallic Tubes
title_sort stress analysis in the extrusion of bimetallic tubes
url https://et.ippt.pan.pl/index.php/et/article/view/679
work_keys_str_mv AT jlalcaraz stressanalysisintheextrusionofbimetallictubes
AT jmmartinezesnaola stressanalysisintheextrusionofbimetallictubes
AT jgilsevillano stressanalysisintheextrusionofbimetallictubes