Influence of Tool Pin Profiles on Friction Stir Welding of Copper

Kumar, Adepu; Raju, L. Suvarna

doi:10.1080/10426914.2012.689455

Cited by 75 publications

(34 citation statements)

References 14 publications

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“…Originally, this technique was developed for joining aluminium alloys, but due to its proven advantages, this method is currently being studied to weld other metallic materials, polymers [5,6] and even joining dissimilar materials [7]. Due to the low amount of generated heat, components with high mechanical properties, low distortion and residual stresses are achieved.…”

Section: Introductionmentioning

confidence: 99%

Effect of Friction Stir Welding Parameters with Newly Developed Tool for Lap Joint of Dissimilar Polymers

Eslami

Ramos

Tavares

et al. 2015

Procedia Engineering

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Friction stir welding (FSW) is relatively a new welding method where heat generated by friction is used to forge components together under an axial force. In this method, the generated heat does not exceed the material melting point, instead, the material is heated to its forging temperature and is stirred together by a rotating tool. Since the invention of FSW, this technique has been mainly used for welding aluminium plates together for butt and lap joint configurations.This study is focused on welding lap joint of dissimilar polymers with a new developed tool, in order to evaluate the effect of the welding parameters on the weld strength. This paper describes the process of developing a stationary FSW tool for welding thin plates of polypropylene and polyethylene. The welds produced with this tool improved the welds surface quality and strength significantly. The use of the proposed tool showed to improve the stability in the axial force magnitude during the welding procedure in comparison with a conventional FSW tool. It was also concluded that the rotational and traversing speed have the most effective role regarding the overall specimen tensile strength. Moreover, unlike lap joint of metallic materials, the defect occurred in the retreating side of the welds.

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Section: Introductionmentioning

confidence: 99%

Effect of Friction Stir Welding Parameters with Newly Developed Tool for Lap Joint of Dissimilar Polymers

Eslami

Ramos

Tavares

et al. 2015

Procedia Engineering

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show abstract

“…3 shows that the weld made with TT pin profile revealed superior hardness in the weld zone compared to other profiles and. It is observed that the hardness of all joints lower than that of base material due to plasticizing of material during dynamic recovery and dynamic recrystallization (Kumar et al, 2012). However, TT profile has produced highest hardness value of 46 Hv at the weld zone compared to other welds prepared by different tool pin profiles.…”

Section: Microhardnessmentioning

confidence: 91%

Influence of Tool Pin Profile on Mechanical Properties and Microstructure of Friction Stir Welded Aluminium AA7075 Alloy

Venkateswarlu¹

2020

IJMTST

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The present investigation describes the effect of different tool pin profiles on microstructure and mechanical properties of friction stir welded aluminium AA-7075 alloy. The tool pin profiles namely taper cylindrical threaded (TT), cylindrical (CT), square (SQ), triangular (TR), pentagonal (PT), hexagonal (HX) with constant shoulder diameter have been selected to make joints. The friction stir welding was done at constant tool rotational speed and traverse speed. From this study, it is noted that the weld joints prepared using taper cylindrical threaded pin profile exhibited good mechanical properties when compared to other pin profiles. It is due to more surface contact of tool pin and production of equiaxed fine grain structure in the weld region.

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“…Moreover, the homogenous dissemination of Cu bulk in Al increased the mechanical properties of the 40 mm/min specimen. Microhardness survey was conceded on all the welded joints which are made by different tool travel speed [20]. The microhardness values compare to lower the base metals in different conditions with using different tool travels speed in details shown in Figure 8 their better hardness of the joint is under the process parameter conditions 40mm/min tool traverse speed and TT (tapered threaded tool pin profile).…”

Section: Microhardness Examinationmentioning

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

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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.

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Influence of Tool Pin Profiles on Friction Stir Welding of Copper

Cited by 75 publications

References 14 publications

Effect of Friction Stir Welding Parameters with Newly Developed Tool for Lap Joint of Dissimilar Polymers

Effect of Friction Stir Welding Parameters with Newly Developed Tool for Lap Joint of Dissimilar Polymers

Influence of Tool Pin Profile on Mechanical Properties and Microstructure of Friction Stir Welded Aluminium AA7075 Alloy

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

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