Wszystkie pola: Refill Friction Stir Spot Welding - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Joint Formation and Mechanical Properties of 2060 Aluminum Alloy Refill Friction Stir Spot Welding Joint
Autorzy:: Shang, Zhen
Zuo, Yingying
Ji, Shude
Wang, Yue
Chai, Peng
Powiązania:: https://bibliotekanauki.pl/articles/2049424.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: refill friction stir spot welding
2060 aluminum alloys
plunge depth
defect characteristics
mechanical properties
Opis:: Refill friction stir spot welding (RFSSW) was used to weld the 2060 aluminum alloy with 2 mm thickness. Joint formation, defect characteristics and mechanical properties were investigated. Results show that stir zone (SZ) is clarified into dynamic recrystallization zone (DRZ) and heat extruded zone (HEZ) due to different microstructural features. The size of void near the hook tip decreases with the increase of the plunge depth. Different hook morphologies are obtained under different plunge depths. The tensile-shear load of joint with the void defect initially decreases and then increases with increasing plunge depth. The mean loads of joints under different plunge depths are in the range of 5.1-5.8 kN. The void separates the hook from lap interface, so the cracks initiating from the hook propagate along the sleeve retreating path. The hook has a larger influence on the tensile-shear load of joint than void. All the tensile specimens present a shear-plug fracture mode.
Źródło:: Archives of Metallurgy and Materials; 2021, 66, 1; 153-161
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Selection of basic position in Refill Friction Stir Spot Welding of 2024-T3 and D16UTW aluminum alloy sheets
Autorzy:: Lacki, P.
Derlatka, A.
Gałaczyński, T.
Powiązania:: https://bibliotekanauki.pl/articles/351991.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Refill Friction Stir Spot Welding
RFSSW
aluminum alloy
basic position
Opis:: One of the important parameters of Refill Friction Stir Spot Welding is the so-called basic position of the tool. This is the arrangement of the pin and sleeve which occurs when the tool is plunged into the material. The basic positions can be divided into two categories. In the first category, the sleeve and the pin are above the sheet surface or below sheet surface and in the second category the pin is retracted within the sleeve or protrudes from it. The aim of the work was to test four settings of the basic position, and then determine the best setting of the basic position, without changing the other welding parameters. Joints made of an aluminum alloy 2024-T3 sheet having a thickness of 1.0 mm and an aluminum alloy D16UTW sheet having a thickness of 0.6 mm were analysed. The best setting of the basic position was determined based on assessment of the force carried in shear test, macrostructure and weld face of the joints.
Źródło:: Archives of Metallurgy and Materials; 2017, 62, 1; 443-449
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The Influence of Tool Geometry for Refill Friction Stir Spot Welding (RFSSW) on Weld Properties During Joining Thin Sheets of Aluminum Alloys
Autorzy:: Łogin, W.
Śliwa, R. E.
Ostrowski, R.
Andres, J.
Powiązania:: https://bibliotekanauki.pl/articles/354218.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: RFSSW
joint strength
material softening
RFSSW tools
Opis:: The paper presents the results of research on the modification of the face geometry of the refill friction stir spot welding tool sleeve for welding thin aluminum sheets with an Alclad and an oxide anode coating. The analysis of the impact of such modification on the process perform (tool motion parameters, temperature) and microstructure as well as mechanical strength of the lap joints were analyzed. The tests were carried out using aluminum alloy 2024-T3 sheets with thickness 1.27 mm. For comparative purposes,joints were also made using plates without an Alclad and without anodized coating with using unmodified tool and modified toolswith developed 3 variants of face geometry. The samples with the joint were subjected to metallographic and strength tests. It has been shown that the use of modified geometry has a decisive influence on the performance of the process and the effect of softening and mixing of materials in the zone of point connection.
Źródło:: Archives of Metallurgy and Materials; 2019, 64, 3; 975-981
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Characteristics and Tensile-Shear Properties of Refill FSSW Joint Under Different Plunge Depths in 2060 Aluminum Alloy
Autorzy:: Wang, Yue
Chai, Peng
Powiązania:: https://bibliotekanauki.pl/articles/2049695.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: refill friction stir spot welding
aluminum alloy
defect characteristics
tensile shear properties
Opis:: Refill friction stir spot welding (refill FSSW) was used to weld 3.2-mm-thick 2060 aluminum alloy. Joint formation, defect characteristics and tensile-shear property were analyzed. Results show that keyhole can be completely eliminated under different plunge depths. However, defects such as void, unconnected welding, hook can be observed under the plunge depths of 3.4-4 mm.The size of the overall void initially increased and then decreased with the increase of the plunge depth, while the void was the smallest under the plunge depth of 3.4 mm. The unconnected defect at the lap interface gradually shrank a welding line from obvious crack. Different hook morphologies were observed under different plunge depths. The tensile-shear load of joint increased with the increase of the plunge depth and was up to the largest under the plunge depth of 4 mm. All the tensile-shear specimens fractured along the lap interface. Compared with the void, the unconnected defect had a greater influence on the tensile-shear property.
Źródło:: Archives of Metallurgy and Materials; 2021, 66, 2; 451-460
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Assessment Of Joints Using Friction Stir Welding And Refill Friction Stir Spot Welding Methods
Diagnostyka połączeń uzyskanych metodą tarciową (Friction Stir Welding) oraz zgrzewania z przemieszaniem materiału (Refill Friction Stir Spot)
Autorzy:: Lacki, P.
Więckowski, W.
Wieczorek, P.
Powiązania:: https://bibliotekanauki.pl/articles/352059.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: friction stir welding
investigation
defects
FSW
diagnostyka złączy
defekty
Opis:: FSW (Friction Stir Welding) and RFSSW (Refill Friction Stir Spot Welding) joints have been increasingly used in industrial practice. They successfully replace fusion-welded, riveted or resistance-welded joints. In the last two decades, dynamic development of this method has stimulated investigations of the fast methods for joint diagnostics. These methods should be non-destructive and easy to be used in technological processes. The methods of assessment of joint quality are expected to detect discontinuities in the structures welded using FSW and FSSW methods. Reliable detection of flaws would substantially extend the range of applications of FSW joints across many sectors of industry, including aviation. The investigations carried out in this paper allowed for characterization of defects present in FSW and RFSSW joints. Causes of these defects were also stressed. An overview of the methodologies for assessment of joint quality was presented. Results of assessment of the quality of joints made of 2024T6 aluminium sheet metal using FSW and RFSSW method were presented.
Złącza FSW i RFSSW są coraz częściej stosowane w praktyce przemysłowej. Dobrze zastępują złącza spawane, nitowane czy zgrzewane oporowo. Dynamiczny rozwój metod w ostatnim dwudziestoleciu skutkuje poszukiwaniem szybkich metod diagnostyki złączy. Metody te powinny być nieniszczące oraz dać się zastosować podczas procesu technologicznego. Od sposobu oceny jakości złączy oczekuje się wykrycia nieciągłości struktur zgrzewanych metodą FSW i FSSW. Możliwość skutecznego wykrywania wad pozwoliłaby na znacznie szerszy zakres zastosowań złączy FSW w wielu sektorach przemysłu w tym w przemyśle lotniczym. Na podstawie przeprowadzonych badań w pracy przedstawiono charakterystykę defektów występujących w złączach FSW i RFSSW, wskazano na przyczyny ich występowania oraz przedstawiono przegląd metod badań umożliwiających ocenę jakości złączy. Zaprezentowano przykładowe wyniki oceny jakości złączy wykonanych z blach aluminiowych 2024T6 metodą FSW i RFSSW.
Źródło:: Archives of Metallurgy and Materials; 2015, 60, 3; 2297-2306
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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