Temperature changes with die profiles in axisymmetric forward extrusion process

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dc.contributor.authorAjiboye, J.S.
dc.contributor.authorAdeyemi, M.B.
dc.date.accessioned2022-03-09T09:17:25Z
dc.date.available2022-03-09T09:17:25Z
dc.date.issued2008
dc.descriptionStaff publicationen_US
dc.description.abstractTransient heat transfer and temperature change due to varying die opening shapes in a direct extrusion of lead have been numerically investigated and presented. Upper bound method of analysis was used to evaluate the internal heat generation due to plastic deformation and frictional heat at various stages of the extrusion process. At the extrusion die land region, temperature rises with increasing complexity of die openings geometry with I-shaped section, giving the highest temperature rise, followed by T-shaped section, rectangular, circular shaped die openings with square section die opening, giving the least temperature rise for any given extrusion parameter. The die land zone shows increasing temperature rise with increasing friction coefficient, while increasing friction coefficient has no overall effect on the dead metal zone temperature rise. Increasing die land length leads to increasing contact area between the extrudate and the die resulting in increasing frictional power. It is, therefore, seen that die land is one of the critical factors to consider avoiding surface cracking or hot-shortness in extrusion.en_US
dc.identifier.citationAjiboye, J.S. & Adeyemi, M.B. (2008). Temperature changes with die profiles in Axisymmetric forward extrusion process, Advanced Materials Research, 83-86, 165-173.en_US
dc.identifier.urihttp://repository.elizadeuniversity.edu.ng/handle/20.500.12398/1338
dc.language.isoenen_US
dc.publisherJournal of Applied Scence, Engineering and Technologyen_US
dc.subjectUpper bound analysesen_US
dc.subjectinternal heat generationen_US
dc.subjectplastic deformationen_US
dc.subjectextrusion processen_US
dc.subjectdie land zoneen_US
dc.subjectdie shapeen_US
dc.subjecttemperature distributionen_US
dc.titleTemperature changes with die profiles in axisymmetric forward extrusion processen_US
dc.typeArticleen_US
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