Effect of Welding Parameters on Macro and Microstructure of Friction Stir Welded Dissimilar Butt Joints between AA7075-T651 and AA6061-T651 Alloys

Kumar, Sunil; Rao, V. Seshagiri; Pranesh, R.V.

doi:10.1016/j.mspro.2014.07.362

Cited by 36 publications

(27 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In other words, the softened area was thinner due to increasing the speed of welding, and the tensile strength was increased due to this phenomenon. 49 Similarly, Ravikumar et al 50 rotational speed. They observed that initially tensile strength increased, but after specific speed it declined.…”

Section: Tensile Testmentioning

confidence: 96%

Mathematical modeling and optimization of friction stir welding process parameters in AA5083 and AA7075 aluminum alloy joints

Saeidi

Manafi

Givi

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part B:

View full text Add to dashboard Cite

In this study, dissimilar joints of AA5083-H116 and AA7075-T6 aluminum alloys were successfully made by friction stir welding technique. The microstructure and mechanical behavior of the welded joints were investigated at different rotational and traverse speeds. A mathematical modeling was developed to demonstrate a relationship between the friction stir welding parameters and the ultimate tensile strength of the dissimilar joints. Then, the mathematical modeling was optimized by genetic algorithm in order to find the optimum condition in which the maximum tensile strength of welded joints can be achieved. Eventually, genetic algorithm results confirmed that the maximum tensile strength of welded joints is achievable in rotational and traverse speeds of 500 r/min and 50 mm/min, respectively. The maximum error between experimental data and predicted model was less than 1%.

show abstract

Section: Tensile Testmentioning

confidence: 96%

Mathematical modeling and optimization of friction stir welding process parameters in AA5083 and AA7075 aluminum alloy joints

Saeidi

Manafi

Givi

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part B:

View full text Add to dashboard Cite

show abstract

“…Only the circled portion of the 6101-T6 materials as shown in Figure 22a could be observed to extend into the 7075-T651 material compared to the other welds. This may be attributed not only to the higher rotational speed used but also due to the high traversing speed employed together for the weld which may not permit systematic interfacial mixing as the tool traverse faster on the joint interface of the alloys [39,40]. This also accounts for the lowest tensile value obtained at that parameter compared to other parameters used.…”

Section: Microstructuresmentioning

confidence: 98%

Effects of processing parameters on mechanical, material flow and wear behaviour of friction stir welded 6101-T6 and 7075-T651 aluminium alloys

Abolusoro

Akinlabi

2020

Manufacturing Rev.

View full text Add to dashboard Cite

Dissimilar friction stir welding (FSW) between 6101-T6 and 7075-T651 aluminium alloys was conducted. Three different parameters each were investigated for rotational speed and travel speed, and the effects of these parameters on the tensile behaviour, hardness and wear were evaluated. The results indicate that the ultimate tensile strength increases with an increase in the feed rate. However, the increase in rotational speed decreases the ultimate tensile values. The fractured analysis of the tensile samples shows similarities in the fractured pattern as all the samples failed at heat affected zone close to the 6101-T6 alloy. The hardness varies across the heat affected zones and nugget zone both at constant rotational speed and welding speeds. The highest resistance to wear occurred at 65 mm min À1 and 1850 rpm welding speed and rotational speed respectively while better material mixing was achieved at the nugget zone of the welds at 1250 rpm and 110 mm/min. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.2 O.P. Abolusoro and E.T. Akinlabi: Manufacturing Rev. 7, 1 (2020)

show abstract

“…He concluded [3] that the square frustum pins resulted in more uniform mixing of materials, lower peak temperature and finer recrystallized grains than the conical pins. Ravi Kumar et al [12] studied the friction stir welding between aluminum alloys 7075 and 6061, and they concluded that taper cylindrical pin offered better tensile strength than other used pin profiles. They also reported that the properties of the welds were affected by the percentage of discontinuity and the materials distribution of the weld nugget.…”

Section: Introductionmentioning

confidence: 99%

Microstructural and mechanical properties of dissimilar friction stir welds between AA6082-T6 and AA7075-T651

Daniolos

Pantelis

2016

Int J Adv Manuf Technol

View full text Add to dashboard Cite

In the present work, similar and dissimilar friction stir welds have been produced on 6-mm-thick plates of AA6082-T6 and AA7075-T651. The microstructural characteristics and the mechanical response of both similar and dissimilar welds were investigated aiming to determine the major differences between them. Material mixing of the dissimilar weld nugget, which was created after the welding process, was studied in order to determine the produced different areas and their dominant alloying elements in this zone. Microstructural investigation was made in the welding zones of similar and dissimilar friction stir welds and indications of partial dynamic recrystallization were observed in the thermomechanically affected zone of the similar welds. Transverse and longitudinal microhardness distributions determined the heat affected zone as the weaker area in the welded specimen. After tensile testing, the fracture of the similar and the dissimilar welds at heat affected zone demonstrated the good bonding and weld quality of the similar and dissimilar weld nuggets.

show abstract

Effect of Welding Parameters on Macro and Microstructure of Friction Stir Welded Dissimilar Butt Joints between AA7075-T651 and AA6061-T651 Alloys

Cited by 36 publications

References 14 publications

Mathematical modeling and optimization of friction stir welding process parameters in AA5083 and AA7075 aluminum alloy joints

Mathematical modeling and optimization of friction stir welding process parameters in AA5083 and AA7075 aluminum alloy joints

Effects of processing parameters on mechanical, material flow and wear behaviour of friction stir welded 6101-T6 and 7075-T651 aluminium alloys

Microstructural and mechanical properties of dissimilar friction stir welds between AA6082-T6 and AA7075-T651

Contact Info

Product

Resources

About