Open Access Conference Proceedings

Abstract: In the paper some aspects of the practical implementation of the simulation systems computer-aided design in investment casting are discussed. Presented hypothesis and methodology are based on original solutions allowing to develop unique tools in the context of designing new technologies. [..] Read more

Abstract: The article presents the results of research of iron content (II) and iron (III) in post-production wastes such as dusts from steel, cast and casting cleaning processes made from iron alloys. The total content of iron was marked by the absorptive atomic spectroscopy, however the analysis of Fe content (II) and Fe (III) was carried out with the spectroscopy methods. [..] Read more

Abstract: This paper deals with the influence of the experimental conditions settings of the chosen DTA method on obtained data. The article is focused on the study of heating rate effect on shifting of liquidus temperature (TL) of Fe-CCr based systems (steels). [..] Read more

Abstract: The most important tasks of secondary metallurgy are to accelerate the course of steel production processes and to improve its quality, at the same time limiting the amount of work, energy and sources. The basic and popularly applied treatment of secondary metallurgy is blowing the liquid steel in the ladle by inert gases. [..] Read more

Abstract: Current approach for microstructure images recognition and image-based properties measurement utilized manual iterative image filtering and threshold-binarization process until image areas, corresponding to desired structure elements, were extracted. This approach, however, led to information loss and inaccurate results, due to extensive filtering required to remove noise and extract features. [..] Read more

Abstract: The paper presents the results of operating experiments focused on the study of the formation and modification of non-metallic inclusions during treatment of aluminium-killed steels at units of secondary metallurgy. The process melts were focused on analysis of the influence of deoxidizing and slag-making agents and wear of the lining on the steel microcleanness. [..] Read more

Abstract: The most important physicochemical parameters of several selected carbons from Polish coal beds in the context of using them as a material in ferrosilicon smelting process were analysed in this paper. Among coals presented in the paper, coal from Wujek Coal Mine has been used as a main reducer in the Polish ferroalloy industry until recently, but its resources have run out. [..] Read more

Abstract: This paper presents actual computational possibilities and experiences from the modelling of qualitative parameters of continuously cast steel billets in ProCAST simulation software achieved during a solving of research projects with industrial partners. The ProCAST simulation programme is a part of the equipment of the “Laboratory of modelling of processes in liquid and solid phases” of the “Regional Materials Science and Technology Centre” at the Faculty of Metallurgy and Materials Engineering at the VŠB – Technical University of Ostrava. [..] Read more

Abstract: This paper presents the results of the numerical analysis of the formation process of a turbine engine deflector. In the finite element model we considered thermo-mechanical phenomena occurring during industrial forming of the drawpiece in the hydraulic press. [..] Read more

Abstract: In this paper, the forming process of the bearing housing element of a fan engine is investigated. Because the bearing housing is subjected to corrosion and a heat-resistant environment, this part is made of AMS5604 stainless steel. [..] Read more

Abstract: On the materials for car-bodies are posed quite tough requirements. As the most important of them there are tendencies to still lower car-body weight (to apply lightweight materials) as well as on the other hand also effort to improve its safety because of passengers. [..] Read more

Abstract: The article presents tests results of the influence of hot extrusion process on the microstructure and mechanical properties of alloy Mg-4Li-1Ca. Materials for tests were ingots which included in their chemical composition, apart from Mg and Li as the basic ingredients, such chemical elements as calcium in the amount of 1% mass. [..] Read more

Abstract: Hydraulic descaling is essential to obtaining a high-quality surface in hot-rolled steel. Descaling removes mill scales (mainly iron oxides) from the surface using high-performance water jets which break the structure of the scales and washes them off the steel strip. [..] Read more

Abstract: The paper is focused on the definition of a suitable material model of the titanium alloy, which is subsequent used for the numerical simulation of drawing process and the material spring-back by the FEM. Simulation of drawing process and subsequent spring-back was done in the environment of the simulation software PAM-STAMP 2G. [..] Read more

Abstract: Development of production technology of very fine-grained material is currently very intensively accelerated. Even in scientific research, it is recognized that precisely controlled forming processes, including special processes, enabling control of technological parameters with regard to the structure and its further refinement, currently has the highest gradient utilization efficiency of scientific research findings into practice. [..] Read more

Abstract: In the article examined dependence of grain growth from soak time and temperature. It is researched influence of an initial grain size on stress-strain curves behaviour of steel C45, discussed the significance of this parameter in creation of prediction models of hot forming processes. [..] Read more

Abstract: The aim of the paper was to determine the parameters of recrystallization annealing for cold-rolled sheets prepared from steel X60MnAl30-9. Tested steel is characterized with high resistance and ductility but due to the addition of 9%Al it meets the criterion of the so-called “light steel”. [..] Read more

Abstract: The article presents the results of tests of influence of the thermo-mechanical treatment parameters on the mechanical properties and microstructure of steel C70D for wire rod. The methodology of quantitative description of pearlite morphology in steels with the use of the method on which a new computer program "PILS" - Pearlite Inter-Lamellar Spacing is based was presented. [..] Read more

Abstract: The aim of the study was to evaluate the effect of deformation parameters on the plasticity and microstructure of alloy AZ31. Continuous, two-stage and multi-stage hot deformation tests were performed to analyze the effect of parameters such as heating temperature, deformation size, deformation speed and deformation time after deformation on the alloy microstructure and plasticity of the alloy. [..] Read more

Abstract: The paper presents experimental results that concern hydromechanical bulging of copper axisymmetric components whose relative wall thickness was s0 / D = 0.045. The investigations aimed to determine the impact of degree of deformation on wall thickness distribution in longitudinal section of hydromechanically bulged axisymmetric components. [..] Read more