Abstract:The article presents the results of stress state analysis for workpieces from aluminium alloy 6063 cold-formed in a closed die. Mathematical methods of computer modelling (finite element method) and slip lines (slip-line field method) are used for the analysis. The experimental procedure for repeated cold deformation in a closed matrix (in several passes and/or cycles), the mechanisms of grain grinding and material hardening under the influence of grain-dislocation factors are described. The results of the str… Show more
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