Aluminum sheet formig at elevated temperatures

A.H. van den Boogaard, P.J. Bolt, R.J. Werkhoven

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    18 Downloads (Pure)

    Abstract

    The formability of aluminum sheet depends on the temperature of the material and the strain rate. E.g. the limiting drawing ratio can be improved by increasing the temperature uniformly, but even more by heating the flange and cooling the punch. To accurately simulate the deep drawing or stretching of aluminum sheet at elevated temperatures, a material model is required that incorporates the temperature and strain-rate dependency. In this paper simulations are presented of the deep drawing of a cylindrical cup, using axi-symmetric elements. Two material models are compared. First a phenomenological material model is used, in which the parameters of a Ludwik–Nadai hardening curve are made temperature and strain-rate dependent. Then a physically-based model, according to Bergstr¨om is used. The model incorporates the influence of the temperature on the flow stress and on the hardening rate and includes dynamic recovery aspects.
    Original languageEnglish
    Title of host publicationSimulation of Materials Processing: Theory, Methods and Applications
    Subtitle of host publicationproceedings of the 7th International Conference on Numerical Methods in Industrial Forming Processes - NUMIFORM 2001, Toyohashi, Japan, 18-20 June 2001
    EditorsKen-Ichiro Mori
    Place of PublicationLisse
    PublisherA.A. Balkema
    Pages819-824
    ISBN (Print)90-2651-822-6
    Publication statusPublished - 2001
    Event7th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2001 - Toyohashi, Japan, Toyohashi, Japan
    Duration: 18 Jun 200120 Jun 2001
    Conference number: 7

    Conference

    Conference7th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2001
    Abbreviated titleNUMIFORM
    CountryJapan
    CityToyohashi
    Period18/06/0120/06/01
    Other18-20 June 2001

    Fingerprint Dive into the research topics of 'Aluminum sheet formig at elevated temperatures'. Together they form a unique fingerprint.

    Cite this