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Skocz do pozycji: 1.

Tytuł:: Analysis of possible shipbuilding application of friction stir welding application of friction stir welding (FSW) method to joining elements made of AlZn5Mg1 alloy
Autorzy:: Dudzik, K.
Czechowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/259115.pdf
Data publikacji:: 2009
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: aluminium alloys
friction stir welding
Opis:: In industrial practice the welding of Al- alloys is usually performed under pure argon shielding by means of MIG or TIG methods. In recent years new joining techniques such as friction stir welding (FSW) have appeared. Joints of EN AW-7020 T6 alloy elements welded by using FSW method have been tested. Results of static tensile tests, transverse bending tests as well as tests on stress corrosion susceptibility are presented. Parameters of friction welding (FSW) applied to joints of plates made of AlZn5Mg1[7020] alloy are given. Stress corrosion tests have been performed by using slow-strain-rate testing method (SSRT) in compliance with PN-EN ISO 7539-7 standard. The tests were conducted in air and 3.5% NaCl water solution. The following parameters have been measured during the tests: time to failure – T [h], maximum failure load – F [N], fracture energy (area under stress-elongation curve) – E [MJ/m3], relative elongation of specimen – A10 [%], maximum tensile stress – R [MPa], as well as percentage reduction of area – Z [%]. On the basis of the obtained test results it was concluded that the joints welded by means of FSW method show good resistance to stress corrosion at satsifactory strength properties, which indicates that application of friction welding by using FSW method in shipbuilding industry is purposeful.
Źródło:: Polish Maritime Research; 2009, 4; 38-41
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Properties of AW 5059 aluminium alloy joints welded by mig and Friction Stir Welding (FSW)
Autorzy:: Czechowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/243771.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: friction stir welding (FSW)
mechanical properties
aluminium alloys
stress corrosion cracking
Opis:: The article presents the results of the mechanical properties of aluminium alloy AW 5059 [AlMg5.5Zn] welded by MIG and friction stir welding FSW. Friction Stir Welding (FSW) – a new technology can be successfully used for butt welding of different types of aluminium alloy sheets. Research results on stress corrosion cracking for the AW 5059 alloy welded joints are presented. Stress corrosion cracking was examined via the slow-strain-rate-testing (SSRT) according to EN ISO 7539-7. The following parameters were measured: time-to-failure, obtained max. load, strain energy (the diagram surface under the stress-elongation curve), relative elongation of the specimen, tensile stress and reduction-in-area. The fractures were analysis by scanning electron microscope of Philips XL 30 type. Tests were carried out in the air and in a 3.5% water solution of NaCl – artificial sea water. On the basis of obtained test results, it can be said that 5059 alloy joints welded by FSW are resistant to stress corrosion in sea water. Tests have shown that the 5059 alloy, welded by FSW, has superior strength properties compared to the FSW 5083 alloy, along with comparable, good resistance to stress corrosion. Original value are received results of the mechanical and corrosion properties of a new method friction stir welding used for joining AW 5059 alloy sheets.
Źródło:: Journal of KONES; 2013, 20, 3; 125-129
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The application of friction stir welding (FSW) of aluminium alloys in shipbuilding and railway industry
Autorzy:: Gesella, G.
Czechowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/245646.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: Friction Stir Welding
FSW
aluminium alloys
welding
shipbuilding industry
mechanical properties
Opis:: The article describes possibilities of application of friction stir welding (FSW) in shipbuilding and railway industry. Actually, in these sectors of industry more and more often modern construction materials are used. The biggest restriction of implementing new materials is technological possibility of joining them. One of construction materials used in the shipbuilding is aluminum, mainly its alloy of 5xxx-aluminium-magnesium series. Its application is justified by good corrosion resistance in seawater and good mechanical attributes. Thanks to susceptibility to plastic treatment, one gains good mechanical attributes with thrice-smaller density than a density of steel, what causes triple reduction of weight of aluminum construction relative to steel one. Alloys of 5xxx series are well weldable. It is generally known that welding is not a good way to joint metals, especially the aluminum. The application of FSW with mixing allows one to change approach to production of aluminum constructions. Using aluminum plates prefabricated with FSW method allows one to reduce time needed for installation of construction and considerably decreases the production costs. The article describes technology and directions of development of friction welding of aluminum alloys of 5xxx series using FSW method. There is also shown analysis of its usefulness in ship and railway industry and comparison of mechanical attributes of weld made with electric arc using MIG (135), TIG (141) method and FSW method.
Źródło:: Journal of KONES; 2017, 24, 2; 85-90
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: State of the Art of Ex-Situ Aluminium Matrix Composite Fabrication through Friction Stir Processing
Autorzy:: Gangil, N.
Siddiquee, A. N.
Maheshwari, S.
Al-Ahmari, A. M.
Abidi, M. H.
Powiązania:: https://bibliotekanauki.pl/articles/353721.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: friction stir processing
aluminium alloys
ex-situ composites
Opis:: Aluminium metal matrix composites (AMMCs) are the fastest developing materials for structural applications. Friction Stir Processing (FSP) has evolved as a promising surface composite fabrication technique mainly because it is an eco-friendly and solid-state process. A spurt in the interest of research community and a resulting huge research output makes it difficult to find relevant information to further the research with objectivity. To facilitate this, the present article addresses the current state of the art and development in surface metal matrix fabrication through FSP with a specific focus on ex-situ routes. The available literature has been carefully read and categorized to present effects of particle size, morphology and elemental composition. The effect of various reinforcements on development of different functional characteristics is also discussed. Effect of main FSP parameters on various responses is presented with objectivity. Based on the studied literature concluding summary is presented in a manner in which the literature becomes useful to the researchers working on this important technology.
Źródło:: Archives of Metallurgy and Materials; 2018, 63, 2; 719-738
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Effect of Tool Pin Profile on Friction Stir Welding of Dissimilar Materials AA5083 and AA7075 Aluminium Alloy
Autorzy:: Azmi, Muhammad Haziq
Hasnol, Muhammed Zakariya
Zaharuddin, Mohd Faridh Ahmad
Sharif, Safian
Rhee, Sehun
Powiązania:: https://bibliotekanauki.pl/articles/2106579.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: friction stir welding
aluminium alloys
tool pin
mechanical properties
Opis:: Friction stir welding (FSW) currently contributes a significant joining process for welding aluminium, magnesium, and other metals in which no molten or liquid state were involved. It is well known that aluminium alloys are more effective, promising for different applications light weight, strength and low cost. This study aims to determine how such tools geometry and tool speed can be related to dissimilar material in the joining process. Specifically, it investigates whether the distribution of the weld zone particularly between tool pin profile to rotational speed. In this context, the influence of tool pin profile and tool rotational speed in relation to the mechanical properties and microstructure of friction stir welded. The aim of this study is also to test the hypothesis that better mixing between dissimilar metals at higher tool rotational speed along the weld path. Three different tool profiles were configured with AA5083 and AA7075. During welding, notable presence of various types of defects such as voids and wormholes in the weld region. The results of this work showed that the tool pin profile and weld parameter are significant in determining mechanical properties at different tool rotational speed. The highest tensile strength achieved was about 263 MPa and the defectfree joint was obtained by using the threaded tapered cylindrical pin tool at a rotational speed of 800 rpm. These findings indicate that different tool profiles influence differently on the formation of defects at welds. On this basis, the tool geometry should be considered when designing experimental friction stir welded joint.
Źródło:: Archives of Metallurgy and Materials; 2022, 67, 2; 465--470
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Influence of friction stir welding on impact resistance of AlZn5Mg1 alloy joints
Wpływ zgrzewania tarciowego FSW na udarność złączy spajanych stopu AlZnSMgl
Autorzy:: Dudzik, K.
Czechowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/242212.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: zgrzewanie tarciowe FSW
spawanie MIG
stopy aluminium
udarność
friction stir welding (FSW)
aluminium alloys
impact resistance
welding MIG
Opis:: The paper presents the research results on impact resistance of friction s tir welded aluminum alloy A W 7020 [AlZn5MglJ. The joints welded by traditional MIG method of the same aluminium alloy were chosen as reference points. Friction Stir Welding (FSW) - a new technology can be successfully used for butt welding of different types of aluminum alloy sheets. The parameters for friction stir welding of sheets made of AlZn5Mgl [7020] alloy were introduced in the article. Metallographic analysis of bonds showed proper structural construction of the friction stir welded 7020 aluminum alloys. The impact resistance was examined via the Charpy test according to PN-EN 10045-1. During test the hammer angle of deflection beta after hitting was noted and next the brake work "L " and impact resistance "U" were determined. The tests were carried out on typical specimens of cuboids shape (55x10x10 mm), with "V" notch. The research was conducted at the temperature of + 20°C. After impact resistance test the failure surface of specimens was analyzed by scanning with electron microscope SEM Philips XL30. The research of impact resistance showed that the values of 7020 alloy welded by FSW method were higher compared to the properties of 7020 alloy joints welded by traditional MIG method — the average impact resistance was about 18% higher in case ofFSW then in MG.
W artykule przedstawiono wyniki badań udarności złączy zgrzewanych tarciowo (FSW) stopu AW 7020 (AlZn5Mgl). Jako punkt odniesienia wybrano zlącza tego samego stopu spawane tradycyjną metodą MIG. Nową technologię zgrzewania tarciowego z przemieszaniem materiału zgrzeiny FSW (Friction Stir Welding) można z powodzeniem stosować do zgrzewania doczołowego blach z różnego rodzaju stopów aluminium. Przedstawiono parametry zgrzewania tarciowego (FSW) zastosowane do połączenia blach ze stopu AlZn5Mgl (7020). Analiza metalograficzna wykazała poprawną budowę strukturalną złączy zgrzewanych stopu aluminium 7020. Badania udarności przeprowadzono metodą Charpy'ego zgodnie z wymaganiami Polskiej Normy PN-EN 10045-1. Podczas badań odczytano kąt wychylenia młota po uderzeniu beta a następnie wyznaczono pracę łamania L oraz udarność U. Próbki do badań udarności wykonano jako standardowe, w kształcie prostopadłościanu o wymiarach 55x10x10 mm z zalecaną przez normę dokładnością š0,1 mm, w których wycięto karb w kształcie litery V. Próbę przeprowadzono w temperaturze + 20°C. Po badaniach udarności przeprowadzono analizę powierzchni przełomów próbek za pomocą mikroskopu elektronowego (SEM) Philips XL3O. Badania udarności złączy stopu 7020 wykazały wyższą wartość udarności w przypadku zastosowania zgrzewania tarciowego FSW w porównaniu do tradycyjnej metody spawalniczej MIG - średnio udarność była wyższa o ok. 18%.
Źródło:: Journal of KONES; 2009, 16, 3; 93-98
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The influence of joining method of AW-7020 aluminium alloy on corrosion properties
Autorzy:: Dudzik, K.
Powiązania:: https://bibliotekanauki.pl/articles/247476.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: aluminium alloys
friction stir welding (FSW)
MIG welding
corrosion
Opis:: The results of corrosion properties research of aluminum alloy AW 7020 (AlZn5Mg1) welded by friction stir welding FSW and MIG were presented. Friction Stir Welding (FSW) - a new technology can be successfully used for butt welding of different types of aluminum alloy sheets. In the article the parameters for friction stir welding of sheets made of AlZn5Mg1 [7020] alloy was presented as well as parameters for MIG. Metallographic analysis of bonds showed a proper structural construction of both, the FSW and MIG welded 7020 aluminum alloys. The polarization was carried out at changes in the potential speed of 12 mV/min in the range of š 50 mV with the stationary potential. Atlas 0531EU & IA potentiostat was used for studies. The corrosion resistance research was carried out using three electrode potentiodynamic method. The following parameters were measured: electrode potential Ec [mV] and the corrosion current density Jc [mi A/cm2]. The tests were carried out on specimens in 3.5% water solution NaCl. Good resistance to electrochemical corrosion was found of the native material, friction stir welded and MIG welded 7020 aluminum alloys. Original value are received results of the corrosion properties of new method friction stir welded AlZn5Mg1 alloy compared with traditional MIG method and the native material.
Źródło:: Journal of KONES; 2011, 18, 4; 587-581
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Characteristics of AlSi9mg/2017A Aluminum Alloys Friction Stir Welded with Offset Welding Line and Root-Side Heating
Charakterystyka stopów aluminium AlSi9mg/2017A zgrzewanych metodą Friction Stir Welding z przesunięcem linii zgrzewania i dodatkowym źródłem ciepła od strony grani
Autorzy:: Mroczka, K.
Powiązania:: https://bibliotekanauki.pl/articles/350928.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: FSW
aluminium alloys
AlSi9Mg
2017A
stopy aluminium
Opis:: Welding of materials differing significantly in terms of chemical composition and microstructure is one of the main advantages of the Friction Stir Welding method. This paper presents the results of welding of a cast AlSi9Mg (hypoeutectic silumin) and 2017A aluminum alloys. The welding was performed with a high linear velocity (over 1 m/min). The modification of the process consisted in offsetting the welding line toward the advancing side, and in on application of an additional heat source from the root side. The study of the macrostructure (with high resolution of the image) revealed the presence of defects in the weld, despite greater plasticity of the material results from raising the temperature. The analysis (by SEM, SEM-EDS) of constituent stable phases within the cast alloy, showed their considerable fragmentation, however to a various degree. The material above the weld nugget was not mixed and contained micro-defects that did not result from the welding. The hardness distribution within the weld nugget, reveals slight strengthening of the both cast and wrought alloys. A metastable state of the 2017A alloy was also documented, however, the alloy hardness increased within the weld nugget due to the natural aging. On the other hand, the hardness of the heat-affected zone in this alloy does not increase also due to the natural aging.
Jedną z głównych zalet technologii FSW jest zdolność do spajania materiałów znacznie różniących się składem chemicznych. W artykule przedstawiono rezultaty zgrzewania stopów aluminium AlSi9Mg (silumin podeutektyczny) i 2017A. Zgrzewanie wykonano z dużą prędkością liniową (powyżej 1 m/min). Proces zgrzewania zmodyfikowano przesuwając linię zgrzewania w kierunku strony natarcia oraz stosując dodatkowe źródło ciepła od strony grani. Badania makrostruktury zgrzeiny wykazały obecność wad mimo zwiększonej plastyczności materiału podczas zgrzewania, w wyniku podwyższenia temperatury. Podczas zgrzewania FSW dochodzi do fragmentacji cząstek w obszarze działania narzędzia. Na podstawie badań SEM i SEM-EDS wykazano różny stopień fragmentacji wydzieleń w stopie AlSi9Mg. Badania wykazały ponadto ograniczoną intensywność mieszania materiału przez narzędzie w strefie nad jądrem zgrzeiny. W tym obszarze wystepują również niewielkich rozmiarów wady, niebędące efektem płynięcia materiału. Z kolei analizy rozkładów twardości na przekroju porzecznym zgrzeiny dowiodły niewielkiego umocnienia stopu odlewniczego. Natomiast stop 2017A, w obszarze jądra zgrzeiny, wykazał niestabilność mikrostruktury (bezposrednio po zgrzewaniu) oraz uległ umocnieniu w wyniku starzenia naturalnego. Starzeniu nie uległ obszar strefy wpływu ciepła.
Źródło:: Archives of Metallurgy and Materials; 2014, 59, 4; 1293-1299
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Properties of advancing side of weld in joint welded by FSW
Autorzy:: Dudzik, K.
Powiązania:: https://bibliotekanauki.pl/articles/248070.pdf
Data publikacji:: 2014
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: friction stir welding
FSW
welding
aluminium alloys
advancing side of weld
Opis:: The results of mechanical and corrosion properties research of chosen part of joint bonded by Friction Stir Welding – advancing side of the weld, were presented. AW-7020 aluminium alloy was used for research. Research included the following methods: - mechanical properties were carried out using static tensile test in accordance with PN-EN ISO 4136:2011 and PN-EN ISO 6892-1:2010, - Hardness testing in the cross-sections of joints was carried out using Vickers HV5 method in accordance with PNEN ISO 6507-1:2006, - microscopic examination was performed by optical microscope ZEISS Axiovert 25, - the corrosion resistance research was carried out using electrochemical impedance spectroscopy (EIS) method in 3.5% water solution NaCl. During the study obtained higher strength properties for the FSW joint compared to the native material – all samples cracked in the native material. The hardness test shown, that the advanced side of the weld has the highest value of hardness of completely joint. Better resistance to electrochemical corrosion was found for the native material then joint welded by FSW of 7020 aluminum alloy, including the advancing side of the weld. Original value is received results of the mechanical and corrosion properties of advancing side of the weld of FSW welded AW-7020 aluminium alloy.
Źródło:: Journal of KONES; 2014, 21, 3; 75-80
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Influence of joining method for hardness distribution in joints of AlZnSMg1 alloy
Autorzy:: Dudzik, K.
Powiązania:: https://bibliotekanauki.pl/articles/247544.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: friction stir welding (FSW)
welding MIG
aluminium alloys
hardness distribution
Opis:: The article presents the research results of hardness values distribution of friction s tir welded joint (FSW) alloy AW 7020 (AlZn5Mg1). The joints welded by traditional MIG method of the same aluminium alloy were chosen as reference points. Friction stir welding (FSW) - a new technology can be successfully used for butt welding of sheet metal with different types of aluminium alloys. The parameters of friction stir welding (FSW) and MIG welding used to join metal alloy AlZn5Mg1 (7020) were presented. Metallographic analysis showed the correct structured both MIG welded joints and FSW welded aluminum alloy 7020. The study was carried out using Vickers hardness HV5 accordance with the requirements of the Polish Standard PN-EN 1043-1:2000. The study was conducted in three rows, and the indenter load was 50 N. In order to determine the structural changes in the bonded joints, the samples were polished and then micro-etched KELLER reagent. Metallographic examination was carried out using optical microscope Axiovert ZAISS 25. Metallographic examination revealed the existence of an explicit heat affected zone of HAZ in case of MIG welded joints and virtually lack there of, in case of FSW welded joints. In case of FSW welded joint, maximum hardness was observed in the middle of joint, but at a distance of approximately 25 mm from the middle of the weld there is a hardness decrease of about 10% relative to the base material. In the MIG weldedjoint lowest hardness of the weld occurred in the middle of the joint.
Źródło:: Journal of KONES; 2010, 17, 4; 137-141
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Influence of joining method for mechanical properties of 7020 aluminium alloy joints
Autorzy:: Dudzik, K.
Powiązania:: https://bibliotekanauki.pl/articles/245189.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: friction stir welding (FSW)
aluminium alloys
joints
welding
mechanical properties
shipbuilding
Opis:: The article presents the research results on the mechanical properties of aluminum alloy 7020 and its FSW and MIG welded joints. Welding parameters used for the connection of the sheets made of 7020 alloy were presented. Metallographic analysis showed the correct construction of structural bonded joints. Friction Stir Welding (FSW) – a new technology can be successfully used for butt welding of different types of aluminum alloy sheets. FSW method can be an alternative to traditional arc welding methods, especially MIG, which is the most common method of joining aluminum alloys used in shipbuilding. The research was carried out using a static tensile test in accordance with the requirements of the Polish Standards PN-EN ISO 4136:2011 and PN-EN ISO 6892-1:2010. Flat samples cut perpendicular to the direction of rolling were used. The research was conducted at the temperature of + 20ºC. Friction stir welded joints of 7020 alloy have higher strength properties compared to MIG welded joints. The yield stress of FSW joint is higher by 14.2% compared to MIG welded joint, and at the same level as the native material. Plastic properties of FSW joint are much higher than MIG joint (over 40%). Confirmation of high strength properties of FSW joint is the place of crack - beyond the weld in the native material.
Źródło:: Journal of KONES; 2013, 20, 1; 71-76
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: The properties of AlZn5Mg1 (AW-7020) alloys welded by new technology friction stir welding
Własności złączy stopu AlZn5Mg1 zgrzewanych tarciowo nową technologią FSW
Autorzy:: Dudzik, K.
Czechowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/248082.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: stopy aluminium
zgrzewanie tarciowe z przemieszaniem materiału zgrzeiny (FSW)
korozja naprężeniowa
własności mechaniczne
próba odkształcania z małą prędkością
aluminium alloys
friction stir welding (FSW)
stress corrosion cracking
mechanical properties
slow-strain-rate-testing
Opis:: The results of examining mechanical properties and stress corrosion cracking (SCC) of aluminum alloy AW 7020 [AlZn5Mg1] by friction stir welded were presented. Friction Stir Welding (FSW) - a new technology can be successfully used for butt welding of different types of aluminum alloy sheets. In the article the parameters for friction stir welding of sheets made of AlZn5Mg1 [7020] alloy was presented. Metallographic analysis of bonds showed a proper structural construction of the friction stir welded 7020 aluminum alloys. Stress corrosion cracking was examined via the slow-strain-rate-testing (SSRT) according to EN ISO 7539-7. The following parameters were measured: time-to-failure - T [h], obtained max. load - F [N]; strain energy (the diagram surface under the stress-elongation curve) - E [MJ/m3]; relative elongation of the specimen - A10 [%]; max. tensile stress - R [MPa] and narrowing - Z [%]. The tests were carried out on cylindrical notch-free specimens in the air and 3.5% water solution NaCl. Good resistance to stress corrosion was found of friction stir welded 7020 aluminum alloys. The tested samples cracked during SSRT test in the native material. Original value is received results of the stress corrosion resistance of new method friction stir welded AlZn5Mg1 alloy.
W artykule przedstawiono wyniki badań własności mechanicznych oraz podatności na korozję naprężeniową złączy zgrzewanych tarciowo (FSW) stopu AW 7020 [AlZn5Mg1]. Nową technologię zgrzewania tarciowego z przemieszaniem materiału zgrzeiny FSW (Friction Stir Welding) można z powodzeniem stosować do zgrzewania doczołowego blach z różnego rodzaju stopów aluminium. Przedstawiono parametry zgrzewania tarciowego (FSW) zastosowane do połączenia blach ze stopuAlZn5Mg [7020]. Analiza metalograficzna wykazała poprawną budowę strukturalną złączy zgrzewanych stopu aluminium 7020. Badania korozji naprężeniowej wykonano stosując próbę odkształcenia z małą prędkością (10-6 s-1), zgodnie z PN-EN ISO 7539-7. Parametrami mierzonymi podczas badań były: czas do zniszczenia - T [h], uzyskane maksymalne obciążenie - F [N], energia odkształcenia (powierzchnia wykresu pod krzywą naprężenie-wydłużenie) - E [MJ/m3], wydłużenie względne próbki - A10 [%], maksymalne naprężenia rozciągające - R [MPa] oraz przewężenie - Z [%]. Badania wykonano na próbkach gładkich cylindrycznych w powietrzu oraz sztucznej wodzie morskiej. Na podstawie otrzymanych wyników badań stwierdzono dobrą odporność na korozję naprężeniową złącza stopu aluminium 7020 zgrzewanego metodą FSW. Oryginalnym osiągnięciem są otrzymane wyniki odporności na korozję naprężeniową złączy stopu AlZn5Mg1 zgrzewanych tarciowo nową metodą Friction Stir Welding.
Źródło:: Journal of KONES; 2008, 15, 3; 115-120
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Friction Stir Welding of non-welded aluminium alloys
Zgrzewanie tarciowe niespawalnych stopów aluminiowych metodą FSW
Autorzy:: Bogucki, R.
Pietras, A.
Wiśniewski, A.
Powiązania:: https://bibliotekanauki.pl/articles/235156.pdf
Data publikacji:: 2009
Wydawca:: Wojskowy Instytut Techniczny Uzbrojenia
Tematy:: zgrzewanie tarciowe
stopy aluminiowe
friction welding
aluminium alloys
Opis:: The principle of Friction Stir Welding (FSW) and the way the plasticized materials move during the welding process are presented in this paper. The optimal welding conditions were determined. Findings of friction stir welding of screw made of aluminium alloy EN AW-2017A to the flat bottom of the cassette made of cast aluminium alloy EN AC-42100 are presented. From the microscopy examination, conducted for the specimens which were taken from the different areas of weld, arises that on the entire length of the welding area metallic connection occurs. Results of the hardness test conducted in the weld zone in accordance with PN EN 1043-2 and results of the drop test from the height of 12 meters are presented. The range of tests of the joints of cassettes with the screws, welded with FSW, indispensable to make before the implementation into a production are determined.
W pracy przedstawiono zasadę zgrzewania tarciowego z mieszaniem materiału zgrzeiny metodą FSW (Friction Stir Welding) oraz sposób przemieszczania się uplastycznionych mas materiału podczas procesu zgrzewania. Określono optymalne warunki zgrzewania oraz przedstawiono wyniki badań zgrzewania FSW prętów wyciskanych ze stopu EN AW-2017A z płaski dnem kasety ERAWA, wykonanych z odlewniczego stopu aluminium EN AC-42100. Wyniki badań mikroskopowych próbek pobranych z różnych obszarów zgrzewania wskazują na występowanie ciągłego powiązania metalicznego na całej długości złącza. Przedstawiono wyniki badań twardości prowadzonych w zgrzeinie FSW zgodnie z normą PN EN 1043-2 oraz wyniki badań po próbie zrzutu kaset z wysokości 12 m. Określono zakres niezbędnych badań eksploatacyjnych i badań ostrzałem lekkich kaset ze stopu aluminium ze śrubami ze stopu aluminium zgrzewanych za pomocą metody FSW przed wdrożeniem ich do produkcji.
Źródło:: Problemy Techniki Uzbrojenia; 2009, R. 38, z. 111; 7-14
1230-3801
Pojawia się w:: Problemy Techniki Uzbrojenia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Mechanical properties of 5083, 5059 and 7020 aluminium alloys and their joints welded by FSW
Autorzy:: Dudzik, K.
Charchalis, A.
Powiązania:: https://bibliotekanauki.pl/articles/246888.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: friction stir welding (FSW)
aluminium alloys
joints
welding
mechanical properties
shipbuilding
Opis:: The article presents the research results on the mechanical properties of aluminum alloy 7020 and its friction stir welded (FSW) joints. For comparison alloy 5083 – the most currently used in shipbuilding alloy was chosen as well as 5059 - the new high-strength alloy. Besides the native material alloys there were investigated their joints welded by FSW - the same method as alloy 7020. Welding parameters used for the connection of the sheets made of 7020, 5083 and 5059 alloys were presented. Metallographic analysis showed the correct construction of structural bonded joints. Friction Stir Welding (FSW) – a new technology can be successfully used for butt welding of different types of aluminum alloy sheets. FSW method can be an alternative to traditional arc welding methods i.e. MIG or TIG. The research was carried out using a static tensile test in accordance with the requirements of the Polish Standards PNEN ISO 4136:2011 and PN-EN ISO 6892-1:2010. Flat samples cut perpendicular to the direction of rolling were used. The research was conducted at the temperature of + 20ºC. The 7020 alloy has higher strength properties then alloys: 5083 and 5059. The yield stress is higher by 14.8% compared to 5083 alloy, and by 11.7% compared to the alloy 5059. Plastic properties of an alloy 7020 are the lowest, but with reserves meet the requirements of classification societies. The joints welded by FSW of 7020 alloy have higher strength properties then joints of alloys: 5083 and 5059. The yield stress achieves the highest value for alloy 7020 and is 24.2% higher than for 5083 alloy and 11.5% for the 5059 alloy. Despite the strength properties also plastic properties are best for 7020 alloy joints.
Źródło:: Journal of KONES; 2013, 20, 2; 69-73
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Influence of the notch for mechanical properties of 7020 aluminium alloy jointed by FSW
Autorzy:: Dudzik, K.
Czechowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/247552.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: aluminium alloys
friction stir welding (FSW)
mechanical properties
slow-strain-rate-testing
Opis:: The article presents the results of the mechanical properties of aluminum alloy AW 7020 [AlZn5Mgl] welded by friction s tir welding FSW. Friction Stir Welding (FSW) - a new technology can be successfully used for butt welding of different types of aluminum alloy sheets. In the article the parameters for friction stir welding of sheets made of AlZn5Mgl [7020] alloy were presented. Analysis of bonds showed a proper structural construction of the FSW welded 7020 aluminum alloy. The test was examined via the slow-strain-rate-testing (SSRT) according to ENISO 7539-7. The following parameters were measured: time-to-failure - T [min], obtained max. load - F [N]; strain energy (the diagram surface under the stress-elongation curve) - E [MJ/m3]; relative elongation of the specimen - A10 [%]; max. tensile stress - R [MPa] and contraction - Z [%]. The tests were carried out on cylindrical notch-free specimens and on specimens with "U"- notch in the air. Despite the use of "U" - notch cut in the joint, the specimens cracked in the native material. On the basis of test results were high strength properties of aluminum alloy 7020joints welded by FSW. Original values are received results of the mechanical properties of new method friction stir welded AW- 7020 [AlZn5Mgl] alloy.
Źródło:: Journal of KONES; 2010, 17, 4; 131-135
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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