Friction stir vibration welding process: modified version of friction stir welding process

Rahmi, Meri; Abbasi, Mahmoud

doi:10.1007/s00170-016-9383-9

Cited by 52 publications

(25 citation statements)

References 29 publications

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“…Amini and Amiri [22] studied the effect of vibration on friction stir welding and found that tensile strength has been enhanced due to the application of vibration. Rahmi and Abbasi [27] modified a new version of friction stir welding (FSW) and referred as friction stir vibratory welding process. The strength of the vibratory welded joint was compared with joints prepared by the convention FSW and concluded that welded specimens with vibration are more strengthening than the conventional FSW.…”

Section: Tensile Strength Of L 9 Oamentioning

confidence: 99%

“…The comparative study of the microstructures shows that welding under vibratory conditions (150 and 300 Hz) has fine grain structures as compared to the conventional condition. The imposed vibration during welding process produces following affects [25][26][27]39,45,46]: breaks the growing dendrites, increases the cooling rate, prevents the newborn nucleus from re-melting, increases the number of grains and produces the fine grain structure.…”

Section: Microstructure Characterizationmentioning

confidence: 99%

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Investigation on the effect of mechanical vibration in mild steel weld pool

Singh

2019

Manufacturing Rev.

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This study presents a new concept of a vibratory welding setup which can transfer the mechanical vibrations in the weld zone during Shielded Metal Arc welding (SMAW) process and can also produce the resonance frequency of 300 Hz. In the present investigation mild steel plates of 6 mm thickness has been butt welded using both conventional and vibratory welding conditions. Microstructure and the mechanical properties of the butt welded joints were evaluated, and the results were compared. Further, in order to optimize the process parameters of vibratory welding technique Taguchi and analysis of variance (ANOVA) technique have been adopted. The responses considered for analysis are hardness, ultimate tensile strength (UTS) and impact strength. The result of the study indicates that by applying the vibratory treatment during welding process the mechanical properties such as hardness, tensile strength and impact strength have been enhanced. Lastly, the obtained results are correlated from the results in the past researches.

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Section: Tensile Strength Of L 9 Oamentioning

confidence: 99%

Section: Microstructure Characterizationmentioning

confidence: 99%

Investigation on the effect of mechanical vibration in mild steel weld pool

Singh

2019

Manufacturing Rev.

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“…These both can be related to the effect of dynamic recovery and recrystallization. It is known [26,27] that dynamic recovery and recrystallization are the main mechanisms for grain refinement during FSW; although, it seems that presence of vibration enhances these phenomena. According to Kaibyshev [26,27], with increase of strain, dislocations are generated and a rapid multiplication of dislocations occurs.…”

Section: Microstructurementioning

confidence: 99%

“…It is known [26,27] that dynamic recovery and recrystallization are the main mechanisms for grain refinement during FSW; although, it seems that presence of vibration enhances these phenomena. According to Kaibyshev [26,27], with increase of strain, dislocations are generated and a rapid multiplication of dislocations occurs. A progressive increase in dislocation density with increasing strain leads to three-dimensional arrays of low-angle grain boundaries (LABs) which transform to high-angle grain boundaries (HABs) during FSW.…”

Section: Microstructurementioning

confidence: 99%

The Effect of Vibration during Friction Stir Welding on Corrosion Behavior, Mechanical Properties, and Machining Characteristics of Stir Zone

Fouladi

Ghasemi

Abbasi

et al. 2017

Metals

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Different methods have been applied to refine various characteristics of the zone (or nugget) obtained by friction stir welding (FSW). In the current research, joining components are vibrated normal to the weld line during FSW to refine the zone microstructure. This process is described as friction stir vibration welding (FSVW). The effect of FSVW on mechanical properties, corrosion behavior, and machining characteristics of the zone are investigated. Al5052 alloy specimens are welded using FSW and FSVW processes and their different characteristics are compared and discussed. The results show that the strength and ductility of the welded parts increase when the vibration is applied. The outcomes also show that corrosion resistance of the nugget for FSV-welded specimens is lower than FS welded samples, and machining force of the former specimens is higher than the latter ones. These are related to smaller grain size in the zone of FSV-welded specimens compared to FS welded parts. Smaller grain size leads to a greater volume fraction of grain boundaries and, correspondingly, higher strength and hardness, as well as lower corrosion resistance.

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“…Metallography analyses indicate that grain size decreases and hardness increases and tensile test results also show that strength and ductility values of friction stir vibration (FSV)-welded specimens are greater than those relating to friction stir (FS)-welded specimens [15]. The influence of the main process parameters of the tool force, the micro-and macro mechanical properties, and the joints microstructures in the dip and hump zones were analyzed.…”

Section: Introductionmentioning

confidence: 99%

Studies on Effect of Welding Parameters on the Friction Stir Welding of Aluminium 6061-T6 Butt Welded Joints using Taguchi L9 Approach

Maneiah¹,

Tjprc²

2018

IJMPERD

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The two sheets of aluminum 6061-T6 alloy of size 200×150×3 (mm) are butt-welded by the friction stir welding process by varying the weld parameters such as rotational speed, tilt angle, and feed. The taguchi L9 experimental technique is used to draw the experimental conditions by taking the above said friction-stir welding process parameters.The temperature of the weld bead during the friction-stir welding is measured. The hardness of the weld bead is measured by using the hardness testing machine to find out the hardness value of the weld joints and on the base plates. Analysis of variance (ANOVA) analysis is performed to test the significance of the experimental model at 95% confidence interval.Optimality of the friction-stir welding process parameters for the butt welding of aluminum 6061-T6 alloy is obtained by using the multiple response desirability factors.

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Friction stir vibration welding process: modified version of friction stir welding process

Cited by 52 publications

References 29 publications

Investigation on the effect of mechanical vibration in mild steel weld pool

Investigation on the effect of mechanical vibration in mild steel weld pool

The Effect of Vibration during Friction Stir Welding on Corrosion Behavior, Mechanical Properties, and Machining Characteristics of Stir Zone

Studies on Effect of Welding Parameters on the Friction Stir Welding of Aluminium 6061-T6 Butt Welded Joints using Taguchi L9 Approach

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