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    Wyświetlanie 1-12 z 12
    Tytuł:
    Welding of mobile platform elements made from mixed grades of high-strength steels
    Autorzy:
    Szczucka-Lasota, Bożena
    Węgrzyn, Tomasz
    Łazarz, Bogusław
    Lukaszkowicz, Krzysztof
    Jurek, Adam
    Wilczyński, Krzysztof Ireneusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2091137.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    civil engineering
    transport
    mobile platforms
    welding
    inżynieria lądowa
    platformy mobilne
    spawanie
    Opis:
    In the mobile platform structure, there is an increasing necessity to weld steels from the various groups. For instance, it has become necessary to connect AHSS (Advanced High-Strength Steel) with fine-grained steels. This article verifies the possibility of obtaining accurate mixed welded joints from different grades of DOCOL 1400 steel (from the AHSS group) with S700 MC steel (from the fine-grained steel group). The structure, quality and mechanical properties of the obtained welded joints were thoroughly analysed. The joints were made at various welding speed with preheating to 80°C and without preheating.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2020, 107; 197--203
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Welding of pins to mobile platforms arms
    Autorzy:
    Szczucka-Lasota, Bożena
    Węgrzyn, Tomasz
    Łazarz, Bogusław
    Jurek, Adam
    Wilczyński, Krzystof I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2091146.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    civil engineering
    transport
    mobile platforms
    welding
    inżynieria lądowa
    platforma mobilna
    spawanie
    Opis:
    There is an increasing demand for mixed joints made of hard-weldable steels used in the construction of transport means. An illustration of this is the welding of movable platform elements such as a pin to arm joints. The pin is made of high-strength structural steel S690 QL (1.8928) while the arm of the movable platform is made of DOCOL 1200M steel from the AHSS group (Advanced High-Strength Steel). Such a joint is not easy to make due to the different chemical composition of both steels. The difference in thickness of welded elements creates an additional difficulty. The thickness of the cylindrical pin is 40 mm, whereas the thickness of the sheet metal used for the platform arm is much smaller and amounts to 2 mm. Joints of varying thickness and chemical composition tend to produce cracks in the heat-affected zone as well as in the weld. The purpose of this article is to determine the most appropriate welding parameters and the selection of additional materials to obtain correct joint with good mechanical properties, free of welding defects and incompatibilities.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2020, 109; 177--186
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Welding of mobile platform elements made of AHSS steel and a non-alloy steel
    Autorzy:
    Szczucka-Lasota, Bożena
    Węgrzyn, Tomasz
    Łazarz, Bogusław
    Jurek, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/196283.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    civil engineering
    transport
    mobile platforms
    welding
    inżynieria lądowa
    platformy mobilne
    spawanie
    Opis:
    In the construction of mobile platforms, there is an increasing necessity to weld steels from the AHSS group (AHSS - Advanced High-Strength Steel) with low-alloy steels. This article verifies the possibility of obtaining accurate mixed welded joints from different grades of AHSS steel with S355J2 steel. The structure, as well as mechanical properties of the obtained welded joints, were thoroughly analysed.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2020, 106; 165-171
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Examination of mechanical properties of welds of DOCOL 1200M toward application in components of special vehicles
    Autorzy:
    Szczucka-Lasota, Bożena
    Węgrzyn, Tomasz
    Szymczak, Tadeusz
    Jurek, Adam
    Piwnik, Jan
    Wilczyński, Krzysztof Ireneusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2098150.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    special vehicles
    civil engineering
    transport
    welding
    pojazdy specjalne
    inżynieria lądowa
    spawanie
    Opis:
    The paper focuses on modern martensitic steel (Docol 1200M) and its joint manufactured by means of welding process supported by micro-jet cooling for special vehicles’ structures. Docol 1200M is a type of material denoted as AHSS (A- advanced; H - high; S – strength; S - steel) with important material characteristics, which allows the potential to reduce the weight of the construction of transport means. The paper verifies if the use of micro-jet cooling after MAG welding process could help to maintain initial mechanical parameters of special vehicles’ components. The quality of the joining process was checked by nondestructive and destructive tests. Results from tensile tests have enabled capturing the stress-strain curve as well as mechanical parameters and comparison with data of the parent material. Fatigue properties of the weld are described in terms of the fatigue limit and fatigue diagram, presenting fatigue limit as a key mechanical parameter with respect to the application of the joint examined. Testing the fatigue strength of a new steel grade for special vehicles’ structures in the innovative MAG process at micro-jet cooling was treated as the main goal of the study.
    Źródło:
    Transport Problems; 2021, 16, 2; 33--43
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aluminum alloy welding in automotive industry
    Autorzy:
    Szczucka-Lasota, Bożena
    Węgrzyn, Tomasz
    Jurek, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/1841195.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    mobile platforms
    civil engineering
    transport
    microjet cooling
    platformy mobilne
    inżynieria lądowa
    chłodzenie mikrojetowe
    Opis:
    The paper presents the possibilities of using light alloy components in vehicle construction. Material 6082 was chosen for use in responsible structural components. The structure and strength parameters of the material in the delivery state were tested. Tested material parameters were compared with normative requirements. The purpose of the paper is to check the mechanical properties of aluminum alloy welded joints by various processes and parameters. Until now, welding of 6082 alloy did not give good and repeatable results. Because of that, two welding methods were analyzed (MIG and TIG) in the field of the quality of welds, strength of welded joints, and material structures obtained as a result of welding with various parameters.
    Źródło:
    Transport Problems; 2020, 15, 3; 67-78
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Functioning of selected airports in Poland
    Autorzy:
    Macioszek, Elżbieta
    Powiązania:
    https://bibliotekanauki.pl/articles/2091221.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    transportation
    air transport
    civil engineering and transportation
    transport
    transport lotniczy
    inżynieria lądowa i transport
    Opis:
    Nowadays, air transport is treated as a dynamically developing sector of the world economy. The technological solutions used in this kind of transport are highly advanced; thus, generate high costs, ranging from research through production to the implementation phase. Due to its technological advancement, air transport has several significant advantages over other kinds of transport. This paper presents the characteristics of selected airports in Poland together with statistical data characterising the functioning of the airports. In addition, the plans in recent years regarding the development of air transport infrastructure in Poland were summarised.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2021, 112; 135--144
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Improvement of the mechanical properties of mobile platform stainless construction elements
    Autorzy:
    Szczucka-Lasota, Bożena
    Węgrzyn, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/2203858.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    civil engineering
    transport
    mobile platforms
    welding
    316L steel
    inżynieria lądowa
    platformy mobilne
    spawanie
    Stal 316L
    Opis:
    Stainless steel could be treated as the main material used to construct various means of transport, including mobile platforms and tank trucks. An austenitic steel known as 316L steel (1.4401) has high resistance to atmospheric corrosion, natural waters, water vapor, alkaline solutions, and acids, even at elevated temperatures. This steel is weldable, although it is also prone to various types of welding cracks. Many factors influence the quality and mechanical properties of a joint. The most significant of these is the appropriate selection of welding parameters, which should be determined precisely and separately for each type of sheet, depending on its thickness and geometric features. The aim of the present article is to study the influence of main TIG (Tungsten inert gas) welding parameters on the creation of proper joints used in the construction of mobile truck platforms or tank trucks. The proper selection of parameters enables the production of welds with good functional properties. A novelty of this article is the proposal to weld each layer of a thick joint with different parameters, which has an important influence on the mechanical properties of the joint. It is expected that the new material and technological solution will yield a joint with good corrosion resistance and increased mechanical properties. This is important in the responsible construction of means of transport, using the example of mobile platforms and tank trucks. Different tests verifying the properties of joints, including non-destructive testing, tensile strength tests, and fatigue tests, as well as a hardness probe, were applied.
    Źródło:
    Transport Problems; 2022, 17, 4; 91--102
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Roundabouts as aesthetic road solutions for organizing landscapes
    Autorzy:
    Macioszek, Elżbieta
    Powiązania:
    https://bibliotekanauki.pl/articles/2174835.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    roundabouts
    central island
    esthetic
    road solutions
    civil engineering
    transportation
    ronda
    wyspa centralna
    estetyka
    rozwiązania drogowe
    inżynieria lądowa
    transport
    Opis:
    In the transportation systems are different types of intersections. Among them, roundabouts are considered the safest solution. The application of roundabouts is conditioned by many factors. One of them borders on area development. Roundabouts, among others, are localized in important city places, thus serve as a landmark in the city or are localized on the boundaries of areas with different communication functions, thus constituting an organizational landscape feature. Sometimes, they diversify the space of a street or close the perspective of a monotonous street. Hence, beyond the basic functions, roundabouts with the appropriate central island arrangements can also play the function of organizing the architecture of the local area. The ways and possibilities of roundabout central island arrangements are presented in this article. An interesting central island arrangement shows that roundabouts play an esthetic and organizing landscaping role.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2022, 115; 53--62
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    AHSS steel welding with micro-jet cooling in mobile platforms
    Autorzy:
    Węgrzyn, Tomasz
    Szczucka-Lasota, Bożena
    Piwnik, Jan
    Jurek, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/1841209.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    AHSS steel
    mobile platforms
    civil engineering
    transport
    micro-jet cooling
    stal AHSS
    platforma mobilna
    inżynieria lądowa
    chłodzenie mikrostrumieniowe
    Opis:
    This paper focuses on the weldability of advanced high-strength steels (AHSS), commonly used by the automotive industry and civil engineering. These steels have found application in the construction of mobile platforms mounted on vehicles. AHSS significantly outperform other materials when it comes to performance flexibility and mass reduction potential. This article verifies whether the application of micro-jet cooling technology during the welding process might help to overcome these issues. The aim of this article is to choose welding parameters in the process with micro-jet cooling to obtain the best mechanical properties of the welded structure (elongation). The best welding parameters for these difficult-to-weld constructions are presented in detail.
    Źródło:
    Transport Problems; 2020, 15, 1; 131-139
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    MIG welding of austenitic 316L steel used in means of transport
    Autorzy:
    Szczucka-Lasota, Bożena
    Węgrzyn, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/2203054.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    civil engineering
    transport
    mobile platforms
    MIG welding
    316L steel
    inżynieria lądowa
    platforma ruchoma
    spawanie MIG
    stal 316L
    Opis:
    The austenitic 316L steel (1.4401) is an important stainless material used to build various means of transport. Austenitic steel has high resistance to atmospheric corrosion. The austenitic steel is treated as a good weldable material, although cracks are possible. This paper analyses the influence of various MIG welding parameters on the creation of correct joints used in the stainless steel structures of mobile platforms elements, as an example of welding structures, in various means of transport. Various tests verifying the mechanical properties of MIG welds, including non-destructive tests, tensile strength and hardness tests, were carried out. This article aims to show how important and complex the task is to select the correct welding parameters for elements of means of transport made of austenitic steel on the example of elements of mobile platforms.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2022, 116; 247--256
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Welding mobile platforms elements made of AHSS steel in view of new requirements in civil engineering and transport
    Autorzy:
    Węgrzyn, Tomasz
    Jurek, Adam
    Wszołek, Łukasz
    Stanik, Zbigniew
    Powiązania:
    https://bibliotekanauki.pl/articles/197861.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    civil engineering
    transport
    mobile platforms
    AHSS steel
    micro-jet cooling
    martensitic steel
    inżynieria lądowa
    platforma mobilna
    stal AHSS
    chłodzenie mikrojetowe
    stal martenzytyczna
    Opis:
    The developing automotive industry has prompted an increase in the demand for new welding technologies in civil engineering and transport that reduce the mass of mobile platforms mounted on vehicles and increase their operational range at the same time. The AHSS steels are the materials most commonly adapted for the production of motor vehicles due to their high tensile strength. Nonetheless, the joints created with their use are less strong from the native material. This article examined whether the application of micro-jet cooling would alter the mechanical properties of the welds. Based on the performed tests, joints with better quality that passed positively in the hardness and tensile strength evaluations were obtained. The presented research proves that the use of additional elements in the welding process significantly affects the quality of the obtained welds and brings satisfactory results with a greater repeatability than before.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2019, 103; 209-218
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Plasticity properties of advanced high-strength steel weld construction of transport means - simulation by the MESH-free method
    Autorzy:
    Szczucka-Lasota, Bożena
    Uściłowska, Anita
    Węgrzyn, Tomasz
    Łazarz, Bogusław
    Powiązania:
    https://bibliotekanauki.pl/articles/2203909.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    civil engineering and transport
    AHSS steel welding
    bending test
    metallographic structure
    mechanical resistance
    method of fundamental solutions
    inżynieria lądowa i transport
    spawanie stali AHSS
    próba zginania
    struktura metalograficzna
    odporność mechaniczna
    metoda rozwiązań podstawowych
    Opis:
    Advanced high-strength steel (AHSS) is being used increasingly often in the structure of means of transport. Welds made of these steels can crack in the heat-affected zone (HAZ) and have inferior mechanical properties compared to the base material. The goal of this paper was to solve the technological and material problem of obtaining highstrengh thin-walled welded structures of AHSS steel designed for heavily loaded elements of transport means. The novelty of the article is its presentation of a modified welding process which enables a high-strength structure of the obtained joint to be obtained without welding defects and incompatibilities. Copper backing was selected as an effective method of heat dissipation in the process, and, using the basic solutions method, the leverage of a heat flow process in the weld method deposit (WMD) was checked after cooling down the substrate. The fundamental solutions method was used to determine the optimal shape of the backing. It has been shown that the new backing affects the structure and mechanical properties of welds. In order to verify the newly developed method, tensile tests of the obtained joint were carried out, the hardness was assessed, the metallographic structure was analyzed, and non-destructive tests were performed. The developed material and technological solution were used, for example, for the construction of the arm element of the mobile platform.
    Źródło:
    Transport Problems; 2022, 17, 3; 39--50
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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