Determination of forces in high speed blanking using FEM and experiments

The increasing demand for micro-formed and stamped parts such as connectors in the electronic industry is forcing manufacturers to push the speed limit of conventional press technologies to improve throughput. Designing dies/tooling for higher speeds and obtaining extended tool life requires a thoro...

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Bibliographic Details
Published inJournal of materials processing technology Vol. 213; no. 12; pp. 2184 - 2190
Main Authors Subramonian, Soumya, Altan, Taylan, Campbell, Craig, Ciocirlan, Bogdan
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2013
Subjects
Blanking
Connectors
Demand
Dies
Electronics
Finite element method
Finite element modelling (FEM)
Forces
High speed blanking
Mathematical models
Sheet material
Forces
High speed blanking
Finite element modelling (FEM)
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Summary:The increasing demand for micro-formed and stamped parts such as connectors in the electronic industry is forcing manufacturers to push the speed limit of conventional press technologies to improve throughput. Designing dies/tooling for higher speeds and obtaining extended tool life requires a thorough understanding of the process. This paper discusses an experimental study of the interaction between punch, stripper plate and sheet material at various blanking velocities up to 1600mm/s. The effect of velocity on punching force is also studied. A methodology to obtain high strain and strain rate dependent material flow stress data using blanking test and finite element modelling is presented.
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ISSN:0924-0136
DOI:10.1016/j.jmatprotec.2013.06.014