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Conference Proceedings - METAL 2016
25th Anniversary International Conference on Metallurgy and Materials
May 25th - 27th 2016 / Hotel Voronez I, Brno, Czech Republic, EU
www.metalconference.eu
ISSN: 2694-9296
ISBN: 978-80-87294-67-3
Proceedings of the conference were published in Web of Science and Scopus.
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CHECHULIN Yury B. Ural Federal University, Yekaterinburg, Russia, decanat@mmf.urfu.ru
Co-authors:
POPOV Yury A.
SOKOLINSKY Boris Y.
GAAS Evgeny A.
Abstract:
For the newly proposed pneumohydraulic drive of workpiece return movement it is researched relations, analysis was carried out and recommendations of selecting values of the initial pressure in the pneumatic chamber, ensuring a rational ratio between the periods of acceleration and deceleration were obtained. The mathematical model and program were created for calculation of the law of motion of the brake rod with floating piston device using the system variable throttling the flow of the working fluid along the movement in the brake chamber. [..]
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DZIEDZIC Michał AGH University of Science and Technology, Kraków, Poland, EU, dziedzic@agh.edu.pl, turczyn@metal.agh.edu.pl, kuzminsk@metal.agh.edu.pl
Co-authors:
TURCZYN Stanisław
KUŹMIŃSKI Zbigniew
Abstract:
The paper presents application of multistage compression test for modelling of hot rolling of various steel products. To carry out these experiments multifunctional deformation simulators Gleeble of different types have been used. [..]
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HÁBA Jan VSB - Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17 listopadu 15, 708 33 Ostrava - Poruba, Czech Republic, EU, richard.fabik@vsb.cz
Co-authors:
FABÍK Richard
Abstract:
The main disadvantage of using classical (butt) oval roll groove in the oval-round roll pass schedule is the relatively small coefficient of elongation. This fact requires a larger number of passes to achieve the final dimension of the bar (or wire). [..]
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JĘDRZEJCZYK Dariusz AGH University of Science and Technology, Cracow, Poland, EU, djedrzej@agh.edu.pl
Co-authors:
HOJNY Marcin
Abstract:
The article presents the use of multiscale model to estimate the shape and size of the mixed and liquid zone in the modelling processes with semi-solid core. On a macro level to calculate the heat flow is used three-dimensional thermal model based on the Finite Element Method. [..]
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KAWULOK Petr VSB - Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17 listopadu 15, 708 33 Ostrava - Poruba, Czech Republic, EU, petr.kawulok@vsb.cz, andrea.mertova.st@vsb.cz, ivo.schindler@vsb.cz, stanislav.rusz.fmmi@vsb.cz, rostislav.kawulok@vsb.cz, petr.opela@vsb.cz
Co-authors:
MERTOVÁ Andrea
SCHINDLER Ivo
RUSZ Stanislav
KAWULOK Rostislav
OPĚLA Petr
MACHÁČEK Josef
BRADA Karel
URBANOVÁ Gabriela
KAFKA Robert
Abstract:
Hot rolling of an alloy Al Mg3 was physically simulated by anisothermal uniaxial compression tests performed on the Hot Deformation Simulator HDS-20. The main aim of the research was to define the effect of the finish rolling temperature (in the range from 250 to 350 °C) on the structural and mechanical properties of the investigated alloy. [..]
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Moravec Ján University of Žilina, Faculty of Mechanical Engineering, Department of Technological Engineering, Žilina, Slovak Republic, EU, jan.moravec@fstroj.uniza.sk
Abstract:
This contribution delivers theoretical analysis of the process and relevant findings related to the above process. Design solutions on used metal sheet holders for forming are presented in this article. [..]
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KURKA Petr Fraunhofer Institute for Machine Tools and Forming Technology IWU, Reichenhainer Str. 88, 09 126 Chemnitz, German, EU, petr.kurka@iwu.fraunhofer.de, dirk.landgrebe@iwu.fraunhofer.de
Co-authors:
LANDGREBE Dirk
Abstract:
Ecological and economic reasons are forcing industry to improve efficiency and to save energy and resources. Especially for the automotive and transport industry – but also for all other industrial branches dealing with accelerated masses – lightweight design is a key issue for achieving this goal. [..]
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POLÁKOVÁ Ivana COMTES FHT a.s., Dobřany, comtes@comtesfht.cz, Czech Republic, EU
Co-authors:
DLOUHÝ Jaromír
KUBINA Tomáš
DŽUGAN Ján
Abstract:
The prediction of a fracture in forming processes was analyzed strongly in recent years. A number of material tests for determining a fracture criterion were carried out. [..]
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BELLA Peter ŽP Research and Development Centre, 976 81 Podbrezová, Slovak Republic, EU, bella@zelpo.sk
Co-authors:
RIDZOŇ Martin
BUČEK Pavol
MOJŽIŠ Milan
PARILÁK Ľudovít
Abstract:
The production of seamless steel multi-rifled tubes (i.e. tubes with multiple inner grooving) by means of cold drawing ranks among the most advanced cold forming production technologies. [..]
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MESSAOUDI Salim Laboratory of Energy and materials , University of Biskra - B.P: 145 – Biskra – 07000 Algeria, salim_messaoudi@yahoo.fr
Co-authors:
ZIDANI Mosbah
CHENAFI Messaoud
MEGHAZI AbdElmadjid
MATHON Marie Hélène
BAUDIN Thierry
Abstract:
The main purpose of this work is to meet the need of an electrical cable manufacturer on the breaking of the wire aluminum AGS alloy. And also answer the question of the misfit properties prescribed by the provider to the final properties of the wire drawn.In this study we tried to follow the evolution of the properties of wire alloy during drawing. [..]
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FABÍK Richard VSB - Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, 17 listopadu 15, 708 33 Ostrava - Poruba, Czech Republic, EU, richard.fabik@vsb.cz, petra.vanova@vsb.cz
Co-authors:
HALFAROVÁ Petra
VÁŇOVÁ Petra
Abstract:
The experimental material was a drawn and patented 3.4 mm diameter wire from C78DP steel. The wire was drawn from the diameter of 3.4 mm to 1.5 mm using a straight-through single-block KOCH KGT 25 – E wire drawing machine. [..]
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BEDNARCZYK Iwona Silesian University of Technology, Katowice, Poland, EU, iwona.bednarczyk@polsl.pl
Co-authors:
MRUGAŁA Agata
KUC Dariusz
TOMASZEWSKA Agnieszka
Abstract:
The article presents the tests results which tested the possibilities of shaping magnesium alloys. Testing materials were ingots from magnesium alloys with symbols LAE442 (Mg-Li 4%) and WE43. [..]
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CHRÁŠŤANSKÝ Lukáš CTU – Czech Technical University in Prague, Prague, Czech Republic, EU
Co-authors:
HÁLEK Jan
PAČÁK Tomáš
TATÍČEK František
Abstract:
The automotive industry is characterized by rapid development, which is the largest effort devoted to maximum production optimization. The article deals with problematics of hemmed joints in the automotive industry when main objective is to reduce production price while maintaining sufficient quality products. [..]
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CIEŚLA Marek Silesian University of Technology, Gliwice, Poland, EU
Co-authors:
MUTWIL Kazimierz
KAWULOK Petr
HADASIK Eugeniusz
Abstract:
This paper provides a discussion on results of plastometric tests of selected steel grades used to manufacture pipeline components for the power engineering applications as well as for the gas and petroleum industry The formability assessment was conducted under compression conditions using a thermal-mechanical Gleeble simulator. Studies on the dependence of flow stress σp on strain e were conducted at the temperature ranging from 20 to 1100 °C and the strain rate of 1 s-1. [..]
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FANN Kuang-Jau National Chung Hsing University, Taiwan, kjfann@nchu.edu.tw
Co-authors:
SU Jhe-Yung
Abstract:
In this study, a commercially acquired Ni-rich (50.0~50.8at% Ni) Ni-Ti shape memory alloy sheet having the thickness of 0.9 mm was cut in the shape of a circle with a diameter of 36 mm and placed in a heated chamber at 800°C for one hour and then quenched in water, which served as a solid solution process affiliated to an annealing process. This sheet blank was then stretch formed with a hemispherical punch of 30 mm in diameter to a stroke 1 mm, 2 mm, 3 mm, and 4 mm, respectively. [..]
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GREGER Miroslav VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU miroslav.greger@vsb.cz
Co-authors:
KAWULOK Rostislav
PETRŽELA Jiří
LÁSZLÓ Vladimír
KWARTENG Oskar
JUHAS Miroslav
SUŠOVSKÝ Michal
KANDER Ladislav
DLUGOŠ Ivan
Abstract:
High alloy heat resistance steels based on 12% Cr content are characterized by specific structure and properties, which can substantially complicate technological procedure of their forming. These 12 % Cr based steel are characterized by increased resistance to deformation that affects-their formability significantly, quit narrow interval of forging temperatures, non-uniform formability and high sensitivity to stresses. [..]
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HADASIK Eugeniusz Silesian University of Technology, Krasińskiego 8 Street, Katowice, Poland, EU, eugeniusz.hadasik@polsl.pl
Co-authors:
PŁACHTA Adam
KUC Dariusz
TKOCZ Marek
NIEWIELSKI Grzegorz
Abstract:
The paper presents plasticity tests results for steel types 23MnB4, 30MnB4, C45 and C70 meant for rolling wire rods in modern continuous rolling mill. The assessment of plasticity was conducted in hot torsion test with the use of torsion plastometer in temperature range of wire rod rolling from 850 to 1150°C and strain rates of 0.1; 1 and 10 s-1. [..]
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FABÍK Richard VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU, richard.fabik@vsb.cz, petra.halfarova@vsb.cz
Co-authors:
DOROTÍK Jiří
HALFAROVÁ Petra
Abstract:
The main goal of our paper is to compare the results obtained using full factorial experiments with different combinations of one factor levels. On the example of multipass wire drawing, we will show how the choice of levels of factors can affect the final result of the experiment, especially in view of the determination of the significant factors and their interactions. [..]
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HAWRYLUK Marek Wroclaw University of Technology, Poland, EU, marek.hawryluk@pwr.edu.pl
Co-authors:
MRZYGŁÓD Barbara
Abstract:
The work concerns an idea of the expert system for predicting the life of forging tools used in die forging processes, for which the knowledge representation and processing were based on Adaptive Neuro-Fuzzy Inference System (ANFIS). Using the results of extensive investigations and analysis, a knowledge base was developed for the three representative industrial hot forging processes (forging of front wheel, casing of constant velocity joint body, and fastener construction). [..]
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HILŠER Ondřej VSB - Technical University of Ostrava, Ostrava, Czech Republic, EU
Co-authors:
RUSZ Stanislav
TAŃSKI Tomasz
SNOPIŃSKI Przemysław
DŽUGAN Jan
Abstract:
The article describes the influence of a new ECAP forming tool draft (helix) for achieve a very fine grained structure of magnesium alloy AZ61. It was realized detailed measurements of hardness (HV) distribution and unconventional micro tensile tests for small samples (M-TT) after the individual passes through deformation route Bc. [..]
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