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Modeling of contact pressure in sheet metal forming
journal contribution
posted on 2007-01-01, 00:00 authored by Michael PereiraMichael Pereira, W Yan, Bernard RolfeBernard RolfeFor a given sheet metal forming process, an accurate determination of the contact pressure distribution experienced is an essential step towards the estimation of tool life. This investigation utilizes finite element (FE) analysis to determine the evolution and distribution of contact pressure over the die radius, throughout the duration of a channel forming process. It was found that a typical two-peak steady-state contact pressure response exists for the majority of the process. However, this was preceded by a transient response, which produced extremely large and localized contact pressures. Notably, it was found that the peak transient contact pressure was more than double the steady-state peak. These contact pressure results may have a significant influence on the tool wear response and therefore impact current wear testing and prediction techniques. Hence, an investigation into the validity of the predicted contact pressure was conducted.
History
Journal
Materials Science ForumVolume
561Issue
565Pagination
1975 - 1978Publisher
Trans Tech Publications LtdLocation
Aedermannsdorf, SwitzerlandISSN
0255-5476Language
engNotes
Book title: PRICM 6Publication classification
C1 Refereed article in a scholarly journalCopyright notice
2007, Trans Tech PublicationsUsage metrics
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