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  • Numerical simulation of MIM feedstock injection moulding
    Berginc, Boštjan ...
    Metal injection moulding (MIM) is already a well-established and promising technology for the mass production of small, complex, near-net-shape products. The dimensions and mechanical properties of ... MIM products are influenced by the feedstock characteristics, the process parameters of injection moulding, as well as the debinding and the sintering. Thus the numerical simulations are very important in the beginning of product or technology development. In the article two different techniques for measurement of rheological properties of MIM feedstocks are presented and compared. It was established that capillary rheometers are more appropriate for MIM feedstocks, while on the other side parallel plate rheometers are only suitable for shear rates lower than 10 s-1. Further on we used the genetic algorithms to determine model coefficients for numerical simulation software. The results of simulation of the filling phase and comparison to experimental results are presented in the article.
    Vir: Conference proceedings (Str. 165-170)
    Vrsta gradiva - prispevek na konferenci
    Leto - 2007
    Jezik - angleški
    COBISS.SI-ID - 11729942