Investigation of structure and mechanical properties of copper-brass plates joined by friction stir welding

Erdem, Mehmet

doi:10.1007/s00170-014-6387-1

Cited by 26 publications

(18 citation statements)

References 23 publications

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“…3b). The reasons for the formation of tunnel defect involved heat input, stirring tool design, pin design, and the imbalance in the ratio of rotational speed to welding speed [3,5,12,13]. In this study, all parameters were kept constant except for the rotational and welding speeds.…”

Section: Resultsmentioning

confidence: 99%

“…It is difficult to weld brass components by using conventional welding processes. While copper (Cu) melts at ∼ 1083 • C and boils at ∼ 2562 • C, zinc (Zn) melts at ∼ 420 • C and boils at ∼ 907 • C [2,3]. When they are welded by using conventional processes, the temperature of the welding zone exceeds the boiling point of Zn by leading to the evaporation of Zn and porosity at the weld joint [4].…”

Section: Introductionmentioning

confidence: 99%

“…When they are welded by using conventional processes, the temperature of the welding zone exceeds the boiling point of Zn by leading to the evaporation of Zn and porosity at the weld joint [4]. The decrease in the amount of Zn element causes brass to lose its mechanical properties [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…Burrs and corrugations were observed on the retreating side (RS) of the welded joints. The corrugations resulted from the plasticizing of the brass alloy due to the frictional heat and accumulation of plasticized material in the direction of rotation with the pressure of shoulder[3,9,10,13].Figures 4,…”

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confidence: 99%

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The effect of friction stir welding parameters on microstructure and fatigue strength of CuZn37 brass alloys

Özer¹,

Şık²,

Çevik³

et al. 2017

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In this study, CuZn37 plates were joined by using friction stir welding. Welding was performed at a rotational speed of 750 rpm and a welding speed of 20 mm min −1 , and at a rotational speed of 1000 rpm and welding speeds of 20, 40, 60 mm min −1. The welded samples were analyzed at the macro-microstructural level. Moreover, both hardness and fatigue tests were performed on samples. At the end of the macrostructural examination of the samples welded at the rotational speed of 1000 rpm and the welding speed of 20 mm min −1 , the formation of tunnel defects was observed. While the best fatigue life results at low strain rates were obtained in the samples joined at the rotational speed of 750 rpm and the welding speed of 20 mm min −1 , those at high strain rates were obtained in the samples joined at the rotational speed of 1000 rpm and the welding speed of 60 mm min −1 .

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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The effect of friction stir welding parameters on microstructure and fatigue strength of CuZn37 brass alloys

Özer¹,

Şık²,

Çevik³

et al. 2017

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“…15,16 Apart from this, it is already proven that higher tool-rotational speeds result in an enormous amount of heat input, which immediately leads to an uncontrollable turbulence of the plasticized materials in the FSW zone and eventually results in the generation of defects in the joints. 17 Hence, it can be summarized that the increase in the speed of rotation of the FSW tool initially results in an increase in the tensile strength, eventually declining with further increase in the rotational speed.…”

Section: Tensile Strength and A Fractography Analysismentioning

confidence: 99%

Role of tool rotational speed in influencing microstructural evolution, residual-stress formation and tensile properties of friction-stir welded AZ80A Mg alloy

Sevvel¹,

Satheesh²

2018

Mater. Tehnol.

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Joining flat plates of the AZ80A Mg alloy was carried out using the friction-stir-welding technique, employing various speeds of rotation (the tool), and it was observed that an M-shaped distribution characterizes the stress (residual) distributed in the longitudinal direction. Apart from this, the longitudinal stress (tensile) on the advancing side (AS) was found to be larger than that on the retreating side (RS) in the stir zone. It was experimentally recorded that there seem to be a slight increase in the stress values (tensile longitudinal residual), an increase in the tool rotational speed, and an increase in the peak tensile longitudinal stresses at the edge of the shoulder on the AS of the joints. The grain structures in the stir zone were also found to be influenced by the speed of the tool. Observations of fracture surfaces indicated that dimples and ridges resulted in a ductile fracture and quasi-cleavage resulted in a brittle fracture.

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Experimental and Numerical Procedure for Studying Effect of Ultrasonic Spot Weld Parameters on Metal Joints for Electronic Components

Raj

Kumaraswamidhas

Vendan

et al. 2019

Lecture Notes on Multidisciplinary Industrial Engineering

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Investigation of structure and mechanical properties of copper-brass plates joined by friction stir welding

Cited by 26 publications

References 23 publications

The effect of friction stir welding parameters on microstructure and fatigue strength of CuZn37 brass alloys

The effect of friction stir welding parameters on microstructure and fatigue strength of CuZn37 brass alloys

Role of tool rotational speed in influencing microstructural evolution, residual-stress formation and tensile properties of friction-stir welded AZ80A Mg alloy

Experimental and Numerical Procedure for Studying Effect of Ultrasonic Spot Weld Parameters on Metal Joints for Electronic Components

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