Viscoplastic material upsetting with oscillating dies

Z. H. Huang, M. Lucas, M. J. Adams

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    An oscillatory forming system is used to investigate the potential benefits of vibration assistance for the cylindrical upsetting of a model material in a low frequency range. Plasticine, which exhibits marked elasto-viscoplastic behaviour, has been used as the model material. In this study, both finite element simulation and experiments have been performed for specimens with a range of sizes under different frictional boundary conditions. The experimental data show that the static forming force can be reduced by applying oscillation to the dies during upsetting. The FE simulation work has shown that this may arise from a reduction of the friction at the die wall in addition to a stress superposition mechanism.

    Original languageEnglish
    Title of host publicationProceedings of the SEM IX International Congress on Experimental Mechanics
    Place of PublicationBethel
    PublisherSociety for Experimental Mechanics
    Number of pages2
    ISBN (Print)0912053690
    Publication statusPublished - 2000
    EventSEM 9th International Congress on Experimental Mechanics - Radisson Hotel Universal, Orlando, FL., United States
    Duration: 5 Jun 20008 Jun 2000


    ConferenceSEM 9th International Congress on Experimental Mechanics
    Country/TerritoryUnited States
    CityOrlando, FL.


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