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    A Fast New Numerical Tool for Designing Pre-stressed Dies for Backward Extrusion: Part 1: Die Behaviour

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    Authors
    Bonnavand, F.
    Bramley, Alan N.
    Mynors, Diane J.
    Issue Date
    2001
    
    Metadata
    Show full item record
    Abstract
    Prestressed die inserts are often used in the forging of axisymmetric parts. Their use enhances overall tool economy and can enhance the quality of the finished forging. The design of tooling that incorporates prestressed die inserts is, however, complex. The complexity arises from the interrelated phenomena that occur within the dies during the forging process. As a result, it is not possible to obtain an analytical expression for critical parameters such as die stresses and deflections. This paper shows the limitations of currently used design methods, and identifies, for the backward extrusion process, which physical phenomena should be taken into account when designing prestressed tooling. (Professional Engineering Publishing)
    Citation
    Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 215(2): 169-179
    Publisher
    Professional Engineering Publishing
    Journal
    Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
    URI
    http://hdl.handle.net/2436/29598
    DOI
    10.1243/0954405011515262
    Additional Links
    https://journals.sagepub.com/doi/10.1243/0954405011515262
    Type
    Journal article
    Language
    en
    Description
    Reported is an original and innovative method for the stress determination based on an analytical function of the process parameters for the backward extrusion process. Awarded the 2001 Thomas Stephen Prize by the Institution of Mechanical Engineers.
    ISSN
    09544054
    ae974a485f413a2113503eed53cd6c53
    10.1243/0954405011515262
    Scopus Count
    Collections
    Faculty of Science and Engineering

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