Effects of friction stir lap welding parameters on weld features on advancing side and fracture strength of AA6060-T5 welds

Yazdanian, S.; Chen, Z. W.; Littlefair, Guy

doi:10.1007/s10853-011-5747-6

Cited by 43 publications

(32 citation statements)

References 15 publications

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“…A similar phenomenon was also observed in our previous study on FSLW of 7B04 aluminum alloy where the large height of the hook defect would lead to the poor tensile properties of the joints [9]. Nevertheless, Yazdanian et al [7] suggested that for the FSLW of 3-mm-thick 6060-T5 aluminum alloy, the strength reduction due to the hook defect only became significant when the height of the hook defect reached a critical value of ~0.9 mm. Furthermore, the author pointed out that the hook defect was not the only factor affecting the joint properties.…”

Section: Introductionsupporting

confidence: 86%

“…The fracture strength of a sample, defined by dividing the fracture load by the sample width (N/mm), was utilized to determine the load-carrying ability of FSLW joints. This has been commonly used to evaluate the mechanical properties of a friction stir lap welded joint in previous studies [5][6][7][8].…”

Section: Methodsmentioning

confidence: 99%

“…The hook and cold lap defects are actually reflections of material flow patterns at the faying surface of the lap joint, and thus their profiles are significantly influenced by the tool's geometrical features and process parameters. For FSLW of aluminum alloys, developing specific shapes of tools and optimizing the process parameters would contribute to the minimization of defect levels in lap joints [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…However, this problem is not quite clear and is currently still controversial. optimizing the process parameters would contribute to the minimization of defect levels in lap joints [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Welding Speed on Defect Features and Mechanical Performance of Friction Stir Lap Welded 7B04 Aluminum Alloy

Zhang

Wang

Zhang

et al. 2016

Metals

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Abstract:Friction stir lap welding of 7B04 aluminum alloy was conducted in the present paper, and the effect of welding speed on the defect features and mechanical performance of lap joints was investigated. The results indicate that the hook defect at the advancing side (AS) can reduce the effective thickness of the top sheet, and the sheet thinning level is gradually lowered by increasing the welding speed. The cold lap defect at the retreating side (RS) can result in effective thickness reduction in both top and bottom sheets, and the total height of the cold lap defect varies slightly with the welding speed. The tensile properties of the lap joints are largely related to the sheet thinning levels caused by the defects. The fracture strength of AS-loaded lap joints is progressively increased with increasing welding speed, while that of RS-loaded lap joints evolves slightly with welding speed. It is found that the affecting characteristic of loading configuration on the joint performance is also dependent on the welding speed. At lower welding speeds, the AS-loaded lap joints show lower fracture strength than the RS-loaded lap joints. When the welding speed is high, the AS-loaded lap joints present superior tensile properties to RS-loaded lap joints.

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Section: Introductionsupporting

confidence: 86%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Welding Speed on Defect Features and Mechanical Performance of Friction Stir Lap Welded 7B04 Aluminum Alloy

Zhang

Wang

Zhang

et al. 2016

Metals

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“…As far as FSLW process is concerned, pin length of welding tool was found to be a critical factor in determining the defect configuration and joint properties (Ref 6,13,14). In most previous studies on FSLW, the influence of pin length on joint quality was firstly investigated prior to the optimization of process parameters, and some conclusions were drawn.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pin Length on Hook Size and Joint Properties in Friction Stir Lap Welding of 7B04 Aluminum Alloy

Wang

Zhang

et al. 2014

J. of Materi Eng and Perform

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Friction stir lap welding of 7B04 aluminum alloy was conducted in the present paper, and the effect of pin length on hook size and joint properties was investigated in detail. It is found that for each given set of process parameters, the size of hook defect on the advancing side shows an ''M'' type evolution trend as the pin length is increased. The affecting characteristics of pin length on joint properties are dependent on the heat input levels. When the heat input is low, the fracture strength is firstly increased to a peak value and then shows a decrease. When the heat input is relatively high, the evolution trend of fracture strength tends to exhibit a ''W'' type with increasing the pin length.

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Mechanical and Microstructural Properties of FSW Lap Joints

Aldanondo¹,

Arruti²,

Álvarez³

et al. 2013

Friction Stir Welding and Processing VII

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Effects of friction stir lap welding parameters on weld features on advancing side and fracture strength of AA6060-T5 welds

Cited by 43 publications

References 15 publications

Effect of Welding Speed on Defect Features and Mechanical Performance of Friction Stir Lap Welded 7B04 Aluminum Alloy

Effect of Welding Speed on Defect Features and Mechanical Performance of Friction Stir Lap Welded 7B04 Aluminum Alloy

Effect of Pin Length on Hook Size and Joint Properties in Friction Stir Lap Welding of 7B04 Aluminum Alloy

Mechanical and Microstructural Properties of FSW Lap Joints

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