Improving Impact Strength in FSW of Polymeric Nanocomposites Using Stepwise Tool Design

Azdast, Taher; Hasanzadeh, Rezgar; Moradian, Milad

doi:10.1080/10426914.2017.1339324

Cited by 36 publications

(14 citation statements)

References 20 publications

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“…It has been recognized by several researchers that the weldability and strength of the weld largely depend on this parameter. 33,34 Therefore, to investigate and optimize the effect of this parameter on the strength of the parts welded, the same was considered.…”

Section: Methodsmentioning

confidence: 99%

Investigations on friction stir joining of 3D printed parts to overcome bed size limitation and enhance joint quality for unmanned aircraft systems

Tiwary

Ravi

Arunkumar

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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3D printing technology is making its mark in automotive, aerospace, and bio-medical-related industries. It is considered a viable option for the direct manufacturing of final parts. However, it is not possible to print longer parts in a single attempt due to the bed size limitation of printers. This problem can be addressed by employing a polymer joining technique as a secondary operation. Moreover, low mechanical strength and inferior geometrical qualities like the flatness of the joined parts restrict its real-time industrial application. Here, an attempt is made to join a longer part (typical of an aircraft wing) using friction stir welding technique. Joining was performed on 3D printed similar/dissimilar thermoplastic parts. Tensile test results showed that friction stir welding of 3D printed parts (for both similar/dissimilar) produced relatively weaker joints compared to the base material. Various important process parameters of 3D printing and friction stir welding technique, namely part infill percentage, material combination, tool rotational speed, traverse speed, and tool pin taper angle were optimized by means of ANOVA. Optimization was aimed at maximizing the weld strength, elongation, hardness, and desired flatness. The results suggested that the material combination and tool pin taper angle play a significant role in the weld's strength as well as its geometric properties (flatness). The results were validated by adopting the optimized parameters for successful joining of the wing section of an unmanned aerial vehicle. A span of 320 mm, with a metrological acceptable flatness value of 0.41 µ/m could be successfully achieved on an existing 3D printer whose bed size limit was 240 mm.

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Section: Methodsmentioning

confidence: 99%

Investigations on friction stir joining of 3D printed parts to overcome bed size limitation and enhance joint quality for unmanned aircraft systems

Tiwary

Ravi

Arunkumar

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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show abstract

“…To study the microstructural properties and worn surfaces of welded parts in the FSW process, Amirafshar and Pouraliakbar [103] investigated the effect of tool pin design on the microstructural evolutions and tribological characteristics of friction stir-processed structural steel. Azdast et al [104] presented the effective parameters on the strength of polymeric nanocomposites welded parts in order to enhance the quality of produced parts using the FSW process. The effect of tool parameters as pin and shoulder diameter and pin height on mechanical properties, temperature, and force generation during the FSW process is investigated by Akbari et al [105] to obtain the optimum values for shoulder diameter, pin height, and pin diameter of the welding tool.…”

Section: Design Of the Fsw Toolsmentioning

confidence: 99%

“…A comparison between the FSW-welded and TIG-welded parts are presented in different papers [91,92,93,94,95,96,97,98] to compare and obtain better mechanical properties in the produced parts. To increase efficiency in the FSW process and improve the mechanical properties of the welded part, the welding tool is designed and modified [99,100,101,102,103,104,105,106,107]. The effect of single and double passes to microstructures and mechanical properties The FSW joints exhibit higher mechanical properties than those obtained by A-TIG.…”

Section: Conclusion and Future Research Workmentioning

confidence: 99%

Recent Development in Friction Stir Welding Process: A Review

Soori¹,

Asmael²,

Solyalı³

2020

SAE Int. J. Mater. Manf.

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The Friction stir welding (FSW) is recently presented so to join different materials without the melting process as a solid-state joining technique. A widely application for the FSW process is recently developed in automotive industries. To create the welded components by using the FSW, the plunged probe and shoulder as welding tools are used. The Finite Element Method (FEM) can be used so to simulate and analyze material flow during the FSW process. As a result, thermal and mechanical stresses on the workpiece and welding tool can be analyzed and decreased. Effects of the welding process parameters such as tool rotational speed, welding speed, tool tilt angle, depth of the welding tool, and tool shoulder diameter can be analyzed and optimized so to increase the efficiency of the production process. Material characteristics of welded parts such as hardness or grain size can be analyzed so to increase the quality of part production. Residual stress, strain, deformation, and estimations of the temperatures in the welding area can be predicted using the simulation of FSW in the FEM software. Heat generation, thermal, and thermomechanical analyses can also be implemented on the welded parts to analyze the distribution of temperature and strain in the heat-affected zone (HAZ). Moreover, welding operations of dissimilar metals can be analyzed using numerical simulation to increase the capabilities of the welding methodology in different industrial applications. In this article, a review of the FSW process is presented. As a result, the research filed can be moved forward by reviewing and analyzing recent achievements in the published papers. This article is part of a Special Issue on Lightweighting Materials for Automotive Applications.

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“…Azdast et al [2] investigated the influence of nanoparticle addition and processing parameters on the behavior of welds of polycarbonate nanocomposites parts using the FSW process. The results showed that the amount of nano-alumina powder, rotational speed, and transverse speed had the greatest effects on the impact strength, respectively.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Simulation and Experimental Test of Ovine Corneal Tissue Cutting Process in Cataract Surgery Operation

Band

Arbabtafti

Nahvi

et al. 2021

IJE

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Improving Impact Strength in FSW of Polymeric Nanocomposites Using Stepwise Tool Design

Cited by 36 publications

References 20 publications

Investigations on friction stir joining of 3D printed parts to overcome bed size limitation and enhance joint quality for unmanned aircraft systems

Investigations on friction stir joining of 3D printed parts to overcome bed size limitation and enhance joint quality for unmanned aircraft systems

Recent Development in Friction Stir Welding Process: A Review

Finite Element Simulation and Experimental Test of Ovine Corneal Tissue Cutting Process in Cataract Surgery Operation

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