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    Wyświetlanie 1-5 z 5
    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:
    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
    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 S355J+N low alloy steel elements in railway carriages structures
    Autorzy:
    Szczucka-Lasota, Bożena
    Węgrzyn, Tomasz
    Łazarz, Bogusław
    Jurek, Adam
    Wilczyński, Krzysztof I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2091224.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    transport
    welding
    carriages
    spawanie
    wagony
    Opis:
    Various types of structures and materials play an important role in the creation modern means of transport, including various grades of steel with different mechanical properties. For the rolling stock, proper operation and meeting the operational conditions is very important. Welded structures play an important role in the construction of various means of transport. Correct welding of carriages is important both in production and when carrying out various types of repairs. Each repair a carriage depends on its advancement and condition and the time of its operation. Each inspection for a refurbished carriage is defined either by the service life or the big distance traveled by the carriage. Important factor that may lead to damage is the effect of the load transported in the carriage. Therefore, the causes of the wear of the rolling stock are investigated and measures are taken to prevent any damage. The appropriate technical condition of the carriage also ensures safety on railroads for users and owners of the rolling stock. In the case of welded structures in carriages, it is influenced by poorly materials choice, incorrectly selected production processes and wrong selection of parameters. The goal of this paper is the mechanical properties analyse of weld low alloy steel structure of carriages after MAG welding using the parameters of the process. Thick-walled steel structures are used to build carriages, which is often a serious welding problem. The main role of welding conditions is connected with filer materials, welding technology, state of stress and temperature. In this paper, the properties of low alloy steel S3555J+N structures after MAG welding are presented. Furthermore, metallographic structure, tensile strength, bending test and impact toughness welded joints were analysed regarding welding parameters. The amount of acicular ferrite in WMD oxygen after welding was tested. Gas mixtures of argon and carbon dioxide with various percentage was used for shielding gas.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2021, 112; Bibliogr. 12 poz.
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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
      Wyświetlanie 1-5 z 5

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