Friction Stir Welding of Dissimilar Al-Cu Lap Joints with Copper on Top

Wiedenhoft, Aldoni Gabriel; Amorim, Heraldo J.; Rosendo, Tonilson de Souza; Strohaecker, Telmo Roberto

doi:10.4028/www.scientific.net/kem.724.71

Cited by 8 publications

(3 citation statements)

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“…This was presumed to result from the IMC formation. In contrast, no significant influence of the heat input on the electrical resistance was observed by [20] during FSW of lap joints of aluminum ASTM 6060 T5 and copper ASTM B110. The authors concluded that the formed IMCs had no deleterious effect on the electrical conductivity of the joints.…”

Section: Introductionmentioning

confidence: 85%

Estimation of The IMC Layer Thickness of Friction-Stir-Welded Aluminum/Copper Lap Joints By Using Temperature Simulation

Krutzlinger

Kick

Keßler

et al. 2021

Preprint

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Many studies demonstrated the suitability of Friction Stir Welding (FSW) for joining dissimilar materials. Especially the combination of aluminum and copper is of high interest for many applications. Intermetallic compounds (IMC) forming during FSW due to interdiffusion and the thickness of the IMC layers strongly influence the joint properties, e.g. the joint strength or the thermal and electrical conductivity. Therefore, it is important to predict the IMC layer thickness to tailor the joint properties to the individual application. For this purpose, a thermal-pseudo-mechanical model was built to simulate the temperature field during FSW of aluminum EN AW-1050 and copper CW008A in lap joint configuration. The simulated temperatures as well as the heat inputs corresponded well with experimental data for a wide range of parameter settings. In order to estimate the IMC layer thickness, the simulated temperatures close to the interface of the materials were used. Two approaches for calculating the layer thicknesses were compared. In the first approach, the thickness is calculated based on the peak temperature lasting for several seconds at the interfacial area. This approach was applied for constant feed rates, while the second approach also accounted for the cooling slope and could therefore be used for different feed rates.

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Section: Introductionmentioning

confidence: 85%

Estimation of The IMC Layer Thickness of Friction-Stir-Welded Aluminum/Copper Lap Joints By Using Temperature Simulation

Krutzlinger

Kick

Keßler

et al. 2021

Preprint

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“…Wiedenhoft et al 116 evaluated the electrical resistance of FSWed Cu-Al lap joints formed by positioning the Cu on top. They applied four-wire method and used Cropico DO5 digital ohm meter to measure the electrical resistance.…”

Section: Electrical Analysis Of Fswed Al-cu Jointsmentioning

confidence: 99%

“…This lap configuration allows less intermetallic formation due to the higher cooling rate of Cu as its thermal conductivity is more than Al. 116…”

Section: Electrical Analysis Of Fswed Al-cu Jointsmentioning

confidence: 99%

A review on recent development in aluminium-copper friction stir welding

Payak

Paulraj

Roy

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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Aluminium (Al) and copper (Cu) are widely employed in the industry due to their significant corrosion resistance and electrical conductive properties. The simultaneous requirement of different special properties has increased the trend of joining of Al and Cu. The joining of dissimilar materials has arisen as a new challenge in the research field in the past decade. Friction stir welding (FSW) is a very worthy process to join metals that aren't the same. This article delves into the intricacies of FSW to join compatible metals such as Al and Cu. The various parameters of FSW, namely tool design, tool pin offset, rotation speed, welding speed, tilt angle, and different types of welding joints, are highlighted in this article. It also goes through the different types of defects, microstructures, and intermetallic compounds (IMCs) that are formed during Al-Cu FSW. The electrical behavior and corrosion behavior of the weld zone in Al-Cu FSWed joints were also reviewed. Role of interlayer in some emphasis was also given to form effective joints.

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