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[16590] Artykuł: Evaluation of the possibility of performing cold backward extrusion of axisymmetric thin-walled aluminium die stampings with square sectionCzasopismo: Archives of Metallurgy and Materials Tom: 60, Zeszyt: 4, Strony: 3043-3049ISSN: 1733-3490 Wydawca: POLSKA AKAD NAUK, POLISH ACAD SCIENCES, INST METALL & MATER SCI PAS, PL, 00-901 WARSZAWA, POLAND Opublikowano: 2015 Autorzy / Redaktorzy / Twórcy
Grupa MNiSW: Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A) Punkty MNiSW: 30 Klasyfikacja Web of Science: Article ![]() ![]() Keywords: backward extrusion  finite element method FEM  thin-walled die stampings  |
The paper presents evaluation of the possibility of performing cold backward extrusion of axisymmetrical thin-walled aluminum (Al 99.50, ENAW-1050A) die stampings with a square section at the strain epsilon=ln(A(0)/A(1))=2 (where A(0) - cross sectional area of the billet, A(1) - cross sectional area of the die stamping), and the ratio h(1)/b=3.6 (where h(1) - height of the die stamping in mm, b - width of the base of the die stamping in mm). The analysis was conducted on the basis of the results of computer modelling (FEM) and experimental investigations on backward extrusion. The boundary conditions for numerical calculations were determined experimentally with respect to the flow curve and mechanical properties of aluminum. The results of investigations into backward extrusion of thin-walled square-sectioned aluminum die stampings might be used as guidelines to develop a technological process for industrial practice.