Determination of drawbead contacts with variable bead penetration

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Determination of drawbead contacts with variable bead penetration

N. K. B. Manjula, P. Nanayakkara, Peter D. Hodgson

Centre for Material and Fibre Innovation Deakin University, Geelong, Victoria, Australia, 3217.

DOI:

https://doi.org/10.7494/cmms.2006.3.0171

Abstract:

In stamping operations, the sliding of the sheet metal over the drawbeads is of great importance. The geometry of the drawbead and the degree of penetration both influence material flow and alter the frictional effects between the work and the tool. The effect of drawbead penetration over drawbeads has been studied using the Drawbead Simulator (DBS) test. The contact phenomenon between the sheet and drawbeads was analysed by examining deformed samples with an image fitting technique. The results were compared with an FE simulation and with an approximate geometric analysis. The results give a useful relationship between the rates of change of the contact angle with increasing bead penetration.

Cite as:

Manjula, N., Nanayakkara, P., Hodgson, P. (2006). Determination of drawbead contacts with variable bead penetration. Computer Methods in Materials Science, 6(3-4), 188 – 194. https://doi.org/10.7494/cmms.2006.3.0171

Article (PDF):

Keywords:

Sheet metal forming, Drawbeads, Penetration, Conformity

References:

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