Effect of clamping area and welding speed on the friction stir welding-induced residual stresses

Farajkhah, Vahid; Liu, Yi

doi:10.1007/s00170-016-9393-7

Cited by 15 publications

(7 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a different study, Tutum and Hattel 53 stated that increasing welding speed resulted in a slightly higher tensile stress while holding rotational speed at a constant value. Their statement was in excellent agreement with References 51,52. On the other hand, increasing rotational speed for a fixed welding speed resulted in a lower peak tensile value and a wider tensile region, as shown in Figure 16.…”

Section: Propertiessupporting

confidence: 84%

See 1 more Smart Citation

A detailed process design for conventional friction stir welding of aluminum alloys and an overview of related knowledge

El-Moayed

Shash

Rabou

et al. 2020

Engineering Reports

View full text Add to dashboard Cite

Friction stir welding (FSW) has matured considerably since its introduction in 1991. Over the last decades, it has indeed branched and been applied in different fields, such as automotive, aerospace, railway, and shipbuilding. This article aims to survey the basic knowledge related to the conventional FSW of aluminum alloys in order to provide a tool for understanding the friction stir processes. The review covers the five basic process parameters: rotational speed, welding speed, tool geometry, tilt angle, and plunge depth. Furthermore, it presents the related equations and recommended ranges of those parameters to facilitate the process design step for industrial implementation. A sample of 30 published articles was drawn for that purpose. The current article also discusses the main five properties most researchers are interested in, namely, microstructure, microhardness, tensile strength, residual stresses, and distortion.

show abstract

Section: Propertiessupporting

confidence: 84%

“…It is worth mentioning that they measured RS employing the Hole‐drilling technique. For the same alloy, Farajkhah and Liu 51 studied the effect of clamping area and welding speed on RS in 6 mm thick sheets. They used finite element simulation to predict and visualize RS distribution in each case.…”

Section: Propertiesmentioning

confidence: 99%

A detailed process design for conventional friction stir welding of aluminum alloys and an overview of related knowledge

El-Moayed

Shash

Rabou

et al. 2020

Engineering Reports

View full text Add to dashboard Cite

show abstract

“…Meanwhile, Peel et al 6) reported a positive correlation between longitudinal tensile residual stress and traverse speed. Feng et al 7) , Tutum and Hattel 5) , and Farajkhah and Liu 8) published an equivalent conclusion in their studies. They all agree that large heat input associated with low traverse speeds results in a more uniform thermal gradient along the transverse direction, causing a While several authors claim that increasing the traverse speed increases the longitudinal tensile residual stress, others claim the opposite.…”

Section: Effect Of Process Parameters On Residual Statesmentioning

confidence: 81%

Thermal-induced Residual Stresses and Distortions in Friction Stir Welds - A Literature Review

El-Moayed

Shash

Rabou

et al. 2021

Journal of Welding and Joining

View full text Add to dashboard Cite

Friction Stir Welding (FSW) is a solid-state welding technique that uses the heat generated from friction to assemble a wide variety of materials. Irrespective of having a lower heat input as compared to conventional welding techniques, friction stir welds are still prone to significant thermal-induced stresses and distortions owing to the uneven heating and cooling cycles that a weld goes through. Surprisingly, not several reviews have addressed both the residual stresses and distortions of friction stir welds despite their crucial impact on the weld performance. Therefore, the current paper reviews their development, their correlation with process parameters, and ways to reduce them. Moreover, it explains the current status of process modeling and research gaps in the area of interest.

show abstract

“…Enhancing the travelling speed of tools decreases the grain structures of weld zone; this can be depicted by comparing the XRD patterns of the base metals and welded samples [8]. Fabrication of friction stir welding of aluminum-copper generates internal residual stress (IRS) in the dynamic recrystallized zone (DXZ) causing modifications in the electrochemical and mechanical properties of weldment [9][10][11]. This is influenced by the process parameters of machine setup and is also affected by the composition of base materials [10] identified in the region where corrosion occurs.…”

Section: Introductionmentioning

confidence: 99%

“…Fabrication of friction stir welding of aluminum-copper generates internal residual stress (IRS) in the dynamic recrystallized zone (DXZ) causing modifications in the electrochemical and mechanical properties of weldment [9][10][11]. This is influenced by the process parameters of machine setup and is also affected by the composition of base materials [10] identified in the region where corrosion occurs. 2024-T3-Al alloys joined by friction stir welding were examined through corrosion study concluding that highest corrosion rate was observed in DXZ than Base material (BM) and Thermomechanical Affected-Zone (TMA-Zone) because of the formation of intermetallic compounds due to the elements present in the alloys [11].…”

Section: Introductionmentioning

confidence: 99%

Friction Stir Welding with Low-Medium-High Tool Travel Speed of 0.95 Mg-Al-Alloy and Pure Copper: Electrochemical and Surface Studies

Soni¹,

Singh²

2018

Preprint

View full text Add to dashboard Cite

The aim of this work is to assess the influence of Friction Stir Welding (FSW), process parameters, optimized tool traveling speed, and corrosion resistance of the 0.95 Mg-Al-alloy and pure copper weldment. Samples of aluminum-copper with and without deformation were characterized to investigate the metallurgical effects created during the welding deformation process. Effect of process parameters on microstructure and corrosion rate have been investigated for all the samples. All the electrochemical and polarization tests were done in 3.5 wt.% NaCl solution. Scanning Kelvin Probe (SKP) was done to detect the localized corrosion on the surface. Optical micrography observation indicated that the primary α-Al phase, which was formed during solidification can effectively limit the growth of Cu9Al4 phase. Finer acicular α-Al precipitates were observed in CuAl matrix during joining process that tends to coarser with the increase in tools travel speed. The electrochemical and polarization results showed that among all the tool travelling speed the specimen joined at tool travelling speed of 40 mm/min shows the best non-corrosive property.

show abstract

Effect of clamping area and welding speed on the friction stir welding-induced residual stresses

Cited by 15 publications

References 26 publications

A detailed process design for conventional friction stir welding of aluminum alloys and an overview of related knowledge

A detailed process design for conventional friction stir welding of aluminum alloys and an overview of related knowledge

Thermal-induced Residual Stresses and Distortions in Friction Stir Welds - A Literature Review

Friction Stir Welding with Low-Medium-High Tool Travel Speed of 0.95 Mg-Al-Alloy and Pure Copper: Electrochemical and Surface Studies

Contact Info

Product

Resources

About