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    Wyświetlanie 1-5 z 5
    Tytuł:
    Mixed welding of the mobile construction platform in the automotive industry
    Autorzy:
    Węgrzyn, Tomasz
    Szczucka-Lasota, Bożena
    Piwnik, Jan
    Jurek, Adam
    Wilczyński, Krzysztof Ireneusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2203844.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    AHSS steel
    mobile platforms
    automotive
    transport
    micro-jet cooling
    stal AHSS
    platformy mobilne
    motoryzacja
    chłodzenie mikrostrumieniowe
    Opis:
    This paper examines the possibility to improve mixed weldability of pins to mobile platforms. There is an increasing demand for mixed joints made of hard-weldable steel used in civil engineering and the automotive industry. A good example of this is welding of movable platform elements such as a pin to arm joints. The pin is very often made of yield structural steel S690 QL (1.8928), while the arm of the movable platform is mainly made of DOCOL 1400M steel from the AHSS group (advanced high-strength steel). This kind of joint is not easy to manufacture due to the different chemical compositions and thicknesses of both grades of steel. The difference in the thickness of welded elements creates an additional difficulty. The main aim of this article is to determine the most appropriate welding parameters and select additional materials to obtain the correct joint with good mechanical properties, free from welding defects and incompatibilities. This article examines whether the application of micro-jet cooling technology during the welding process might help to overcome these issues. For the first time, micro-jet cooling was not used to weld these grades of steel. The welding parameters and the micro-jet cooling parameters were investigated.
    Źródło:
    Transport Problems; 2021, 16, 1; 29--38
    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:
    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:
    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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