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  • Polymer and Materials Science  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Materialwissenschaft und Werkstofftechnik 28 (1997), S. 417-423 
    ISSN: 0933-5137
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Determination of Deformation-induced Residual Stresses in Full Forward Extrusion and Comparison to Experimental ResultsThe macroscopic residual stresses induced by cold forward extrusion of rods are calculated by the finite element method. For an experimental determination of the residual stresses X-ray diffraction and neutron diffraction as well as the hole drilling method are applied. The results of the experiments and the calculations are in qualitative agreement, those of the experiments even are in good quantitative agreement. They allow the investigation of the influence of the processing parameters. Thus, a product optimisation with respect to residual stresses is enabled.
    Notes: Die beim Fließpressen erzeugten Eigenspannungen I. Art werden durch eine Simulation des Umformprozesses mit der Finite-Elemente-Methode berechnet. Zur experimentellen Bestimmung der Eigenspannungen werden die Röntgenbeugung, die Neutronen-beugung und das Bohrlochverfahren eingesetzt. Die Ergebnisse der Simulation und der Versuche stimmen qualitativ, die experimentellen Verfahren untereinander auch quantitativ überein. Sie ermöglichen es, den Einfluß der Variation unterschiedlicher Umformparameter auf den Eigenspannungszustand aufzuzeigen. Damit sind die Voraussetzungen für eine Erzeugnisoptimierung hinsichtlich des Eigenspannungszustandes gegeben.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
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