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[60320] Artykuł: The effect of upsetting ratio on mechanical properties for hydromechanically bulged axisymmetric components made from copper tubesCzasopismo: Metalurgija Tom: 56, Zeszyt: 3-4, Strony: 361-363ISSN: 0543-5846 Wydawca: CROATIAN METALLURGICAL SOC, BERISLAVICEVA 6, ZAGREB, CROATIA Opublikowano: Kwiecień 2017 Liczba arkuszy wydawniczych: 0.50 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A) Punkty MNiSW: 25 Klasyfikacja Web of Science: Article ![]() ![]() Keywords: hydromechanical bulge forming  upsetting ratio  axisymmetric components  copper tubes  mechanical properties  |
The paper presents experimental results of investigations of hydromechanical bulge forming of copper axisymmetric components whose relative wall thickness was s(0)/D = 0,045. The deformation ratio of material in the paper was defined as relative upsetting ratio Dl/l(0) (where Dl - the punch displacement, l(0) - initial length of tube). The investigations produced a liquid pressure and a force profile in hydromechanical bulge forming of copper axisymmetric components with different relative ratios Dl/l(0) = 0,054 divided by 0,109. The research aimed to determine the impact of upsetting ratio on mechanical properties for hydromechanically bulged axisymmetric components. The tensile strength R-m increased and the percentage reduction of area Z decreased as the upsetting ratio Dl/l(0) increased.