Welding parameters and joint strength optimization during friction stir welding of high density polyethylene (HDPE) using the Taguchi method

Ülker, Aydın; Sayer, Sami; Ceyhun, Vural

doi:10.3139/120.110874

Cited by 5 publications

(2 citation statements)

References 29 publications

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“…On the other, the reduced frictional heat diffusion at leading led to the formation of uncompleted SZ in the weld seam. This phenomenon is one of the challenging issues in FSW of polymeric materials [54]. During joining of some polymers, high welding speed caused formation of cracks at root of SZ [25].…”

Section: Welding Speedmentioning

confidence: 99%

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Friction Stir Welding and Friction Spot Stir Welding Processes of Polymers—State of the Art

2020

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In the last decade, the friction stir welding of polymers has been increasingly investigated by the means of more and more sophisticated approaches. Since the early studies, which were aimed at proving the feasibility of the process for polymers and identifying suitable processing windows, great improvements have been achieved. This owes to the increasing care of academic researchers and industrial demands. These improvements have their roots in the promising results from pioneer studies; however, they are also the fruits of the adoption of more comprehensive approaches and the multidisciplinary analyses of results. The introduction of instrumented machines has enabled the online measurement of processing loads and temperature, and critical understanding of the principal aspects affecting the material flow and welds quality. Such improvements are also clearly demonstrated by the increase of the strength of recent joints (up to 99% of joining efficiency) as compared to those reached in early researches (almost 47%). This article provides a comprehensive review of the recent progresses on the process fundamentals, quality assessment and the influence of process parameters on the mechanical behavior. In addition, emphasis is given to new developments and future perspectives.

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Section: Welding Speedmentioning

confidence: 99%

Section: Welding Speedmentioning

confidence: 99%

Friction Stir Welding and Friction Spot Stir Welding Processes of Polymers—State of the Art

2020

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Experimental investigation and finite element simulation of friction stir spot welding (FSSW) of high-density polyethylene joints

Shete¹,

Yarasu

2021

Materials Today: Proceedings

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Testing of mechanical butt joints in composite structures

Altan¹

2021

Materials Testing

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As the main contribution of the present study, an I-shaped joining element, which allows the plates used in large composite structures to be joined butt-to-butt, has been improved in terms of load capabilities. It is desirable that the joining zones of composite plates not be visible according to the design of composite structures and the requirements for the desired use in particular. In other words, it is not desirable to create any surfaces that would cause protrusions in the joining zones. The only joining technique that fulfils this condition is the butt joint. Generally, butt joints are performed by bonding. With this technique, it is possible to make a more durable mechanical butt joint using an I-shaped joining element. In this way, instead of bonding butt joints, stronger non-bonding or bonding mechanical butt joints can also be achieved. In this study, the geometric changes in the shape of an I-shaped joining element used in mechanical butt joints and the changes in load-carrying capabilities have been studied experimentally and numerically. Experiments were carried out with tensile, three-point bending and four-point bending tests. The experimental specimens and I-shaped joining elements were cut using a water jet machine. Abaqus finite element analysis software was used for numerical analysis. The numerical data obtained in the study were found to be consistent with the experimental data. The load-carrying capabilities of the joining elements of different geometric shapes were studied numerically and experimentally, and it was found that the ideal element was the joining element with a 60° angle.

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Welding parameters and joint strength optimization during friction stir welding of high density polyethylene (HDPE) using the Taguchi method

Cited by 5 publications

References 29 publications

Friction Stir Welding and Friction Spot Stir Welding Processes of Polymers—State of the Art

Friction Stir Welding and Friction Spot Stir Welding Processes of Polymers—State of the Art

Experimental investigation and finite element simulation of friction stir spot welding (FSSW) of high-density polyethylene joints

Testing of mechanical butt joints in composite structures

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