Contact pressure and wear in sheet metal forming - an FEM analysis
Pereira, Michael, Yan, Wenyi and Rolfe, Bernard 2006, Contact pressure and wear in sheet metal forming - an FEM analysis, in SIF 2006 : Conference Proceedings of the International Conference and Exhibition on Structural Integrity and Failure, Materials Australia, [Sydney, N.S.W.], pp. 73-77.
SIF 2006 : Conference Proceedings of the International Conference and Exhibition on Structural Integrity and Failure
Hoffman, Mark Price, John
International Conference and Exhibition on Structural Integrity and Failure
Place of publication
Wear is the principal cause of tool failure in most sheet metal forming processes. It is well known that the contact pressure between the blank and the tool has a large influence on the wear of the tool, and hence the tool life. This investigation utilises the finite element method to analyse the contact pressure distribution over the die radius for a particular deep drawing process. Furthermore, the evolution of the predicted contact pressure distribution throughout the entire stroke of the punch is also examined. It was found that the majority of the process shows a steady state pressure distribution, with two characteristic peaks over the die radius, at the beginning and end of the sheet contact area. Interestingly, the initial transient contact pressure response showed extremely high localised peak pressures; more than twice that of the steady state peaks. Results are compared to wear reported in the literature, during similar experimental deep drawing processes. Finally, the significance and effect of the results on wear and wear-testing techniques are discussed.
Field of Research
091099 Manufacturing Engineering not elsewhere classified
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