Laser Welding of Structural Aluminium

Quintino, L.; Miranda, Rosa Maria Mendes; Dilthey, Ulrich; Iordachescu, Danut; Banasik, Marek; Stano, Sebastian

doi:10.1007/8611_2010_46

Cited by 33 publications

(18 citation statements)

References 11 publications

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“…Because of its superior properties like high strength to weigh ratio, ballistic resistance and fracture toughness, this alloy is also applied in fabrication of military helicopters and fighter aircrafts (Fisher et al, 2002). Quintino et al (2012) reported that the aluminium is highly difficult to join using fusion welding process because of the formation of solidification related problems such as hot cracking, porosity and alloy segregation. Solid state Friction Stir Welding (FSW) is employed to overcome the above mentioned problems.…”

Section: Introductionmentioning

confidence: 99%

Influences of tool traverse speed on tensile properties of air cooled and water cooled friction stir welded AA2519-T87 aluminium alloy joints

Sabari

Malarvizhi

Balasubramanian

2016

Journal of Materials Processing Technology

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Section: Introductionmentioning

confidence: 99%

Influences of tool traverse speed on tensile properties of air cooled and water cooled friction stir welded AA2519-T87 aluminium alloy joints

Sabari

Malarvizhi

Balasubramanian

2016

Journal of Materials Processing Technology

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“…Hence, many industries have paid their attention towards fabricating lightweight structures [1]. Aluminium alloys are very difficult to join using fusion welding techniques because of formation of porosity and hot cracking [2]. Friction stir welding (FSW) is a non-traditional welding method adopted for joining materials, which are difficult to weld by traditional methods [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Wear Behaviour of Friction Stir Welded Dissimilar Aluminium Alloys

Kumar¹,

Thansekhar²

2019

Metallofiz. Noveishie Tekhnol.

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This work deals an experimental study on wear behaviour of friction stir welded dissimilar AA6101-T6 and AA1350 aluminium alloys. The weldments are fabricated by varying tool traversing speed (78-120 mm/min), rotational speed (765-1070 rpm), and tilt angle (0°-2°). Effects of tool traversing speed, rotational speed, and tilt angle on wear behaviour of weld zone are analysed by conducting wear tests, measuring microhardness values and examining microstructural images of worn surfaces. Taguchi technique is used to analyse the effects of each welding parameter on wear behaviour. The results of this work indicate that the tool rotating speed is the most influencing parameter on the wear rate of weldments, when compared to traversing speed and tilt angle. 203 204 R. ASHOK KUMAR and M. R. THANSEKHAR льше впливає на швидкість зносу зварних конструкцій в порівнянні зі швидкістю переміщення та кутом нахилу.Ключові слова: зварювання тертям з ворушінням, втрата ваги, мікротвердість, техніка Тагучі.Работа посвящена экспериментальному исследованию износостойкости сварных соединений разнородных алюминиевых сплавов AA6101-T6 и AA1350. Сварные швы были изготовлены при различных скоростях перемещения инструмента (78-120 мм/мин), скоростях вращения (765-1070 мин −1 ) и углах наклона (0°-2°). Влияния скорости перемещения инструмента, скорости вращения и угла наклона на износостойкость зоны сварки изучались путём проведения испытаний на износ, измерения значений микротвёрдости и изучения микроструктурных изображений изношенных поверхностей. Для анализа влияния каждого параметра сварки на износостойкость использовалась техника Тагучи. Результаты этой работы доказывают, что скорость вращения инструмента является параметром, наиболее влияющим на скорость износа сварных конструкций по сравнению со скоростью перемещения и углом наклона.Ключевые слова: сварка трением с шевелением, потеря веса, микротвёрдость, техника Тагучи.

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“…One of the extensively used Al alloys is AC-170PX. Due to the presence of an aluminium oxide layer, enhanced thermal conductivity and high thermal expansion coefficient [16][17][18], joining aluminium alloys with laser is not trivial. Few investigations are reported on joining of AC-170PX using tactile laser welding where additional filler materials were used to weld, and further, to evaluate weld microstructures and porosity formation [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Fiber Laser Based Single Pulse Drilling for Production of Perforated Ti-tanium Sheets for HLFC Structures

2019

JLMN

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Use of lightweight materials to produce automotive body structures is one of the key trends adopted by automotive manufacturers to minimise emission of greenhouse gases, and subsequently, reduction of fuel consumption. Aluminium alloys are one of the promising lightweight materials which are increasingly used for automotive body-in-white structures. Such applications demand both efficient and effective joining/welding methods to produce repeatable, durable and strong joints without significant alteration of material properties. Remote laser welding (RLW) is an emerging joining technology and increasingly being used to produce lightweight joints as it satisfies the demand for high production throughput at low cost. This paper investigates the effects of process parameters when seam tracking remote laser welding is used to create an autogenous fillet edge weld of automotive grade aluminum alloy (AC-170PX) in lap configuration without shielding gas. The effects of laser power and welding speed on the key geometric features are reported together with details of the weld microstructure. Joint strength is evaluated by performing a lap shear test. It is found that the laser power and welding speed have dominant influence on key geometric features and subsequently on the lap shear strength. Relatively larger grain size in the fusion zone reduces the microhardness by up to 20% in comparison with the base material.

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Laser Welding of Structural Aluminium

Cited by 33 publications

References 11 publications

Influences of tool traverse speed on tensile properties of air cooled and water cooled friction stir welded AA2519-T87 aluminium alloy joints

Influences of tool traverse speed on tensile properties of air cooled and water cooled friction stir welded AA2519-T87 aluminium alloy joints

Wear Behaviour of Friction Stir Welded Dissimilar Aluminium Alloys

Fiber Laser Based Single Pulse Drilling for Production of Perforated Ti-tanium Sheets for HLFC Structures

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