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Temperature conditions during 'cold' sheet metal stamping
journal contribution
posted on 2014-01-01, 00:00 authored by Michael PereiraMichael Pereira, Bernard RolfeBernard RolfeThis paper investigates the friction and deformation-induced heating that occurs during the stamping of high strength sheet steels, under room temperature conditions. A thermo-mechanical finite element model of a typical plane strain stamping process was developed to understand the temperature conditions experienced within the die and blank material; and this was validated against experimental measurements. A high level of correlation was achieved between the finite element model and experimental data for a range of operating conditions and parameters. The model showed that the heat generated during realistic production conditions can result in high temperatures of up to 108 °C and 181 °C in the blank and die materials, respectively, for what was traditionally expected to be 'cold' forming conditions. It was identified that frictional heating was primarily responsible for the peak temperatures at the die surface, whilst the peak blank temperatures were caused by a combination of frictional and deformation induced heating. The results provide new insights into the local conditions within the blank and die, and are of direct relevance to sheet formability and tool wear performance during industrial stamping processes. © 2014 Elsevier B.V. All rights reserved.
History
Journal
Journal of Materials Processing TechnologyVolume
214Issue
8Pagination
1749 - 1758Publisher DOI
ISSN
0924-0136Publication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2014, ElsevierUsage metrics
Keywords
Science & TechnologyTechnologyEngineering, IndustrialEngineering, ManufacturingMaterials Science, MultidisciplinaryEngineeringMaterials ScienceAdvanced high strength steelsMetal formingTemperatureThermo-mechanical finite element modelTool wearCONTACT PRESSURE EVOLUTIONADHESIVE WEARDIE RADIUSSTEELSMechanical Engineering
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