Friction stir spot welded joints of 409L stainless steels fabricated by a convex shoulder tool

Hossain, Md. Abu Mowazzem; Hasan, Md. Tariqul; Hong, Sung-Tae; Miles, Michael; Cho, Hoon-Hwe; Han, Heung Nam

doi:10.1007/s12540-013-6017-8

Cited by 12 publications

(2 citation statements)

References 18 publications

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“…When using the concave shoulder, the joint with smooth surface, small flash and good mechanical properties can be obtained [80,81]. Additional benefit of the convex shoulder is used for welding materials of different thickness because of the adjustable welding depth [82]. At present, the concave shoulder is commonly used for the Al/Mg FSW because of the effect of 'container' [25,83].…”

Section: Tool Shouldermentioning

confidence: 99%

Friction stir welding of aluminium to magnesium: A critical review

Mao

et al. 2022

Materials Science and Technology

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Aluminium/magnesium hybrid structure has been paid increasing attention recently due to its excellent lightweight. However, aluminium/magnesium is easy to form pores, cracks, and massive intermetallic compounds when fusion welding is used. Friction stir welding is as solid-state method, which avoids the above-mentioned problems caused by fusion welding. This article systematically reviews recent progress in friction stir welding of aluminium/magnesium from temperature field, metal flow and weld composition. Moreover, the effects of control parameters on the temperature field, metal flow and weld composition are discussed objectively, respectively. Finally, this work puts forward some problems that need to be solved urgently in the future based on summarising the recent progress of friction stir welding of aluminium/magnesium.

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Section: Tool Shouldermentioning

confidence: 99%

Friction stir welding of aluminium to magnesium: A critical review

Mao

et al. 2022

Materials Science and Technology

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“…4 After successful results were obtained in aluminum sheets, studies were carried out on aluminum matrix composite materials, stainless steel, low carbon steel, brass, copper, titanium, magnesium, respectively. [5][6][7][8][9][10] Recently, FSSW applications have been started to be made on highdensity polyethylene, polypropylene, polycarbonate and PMMA sheets, which are polymeric materials that have replaced metal materials, and successful results have been obtained. Later, studies were carried out on different polymeric materials and polymer/ metal hybrid structures.…”

Section: Introductionmentioning

confidence: 99%

Investigation of welding defects in friction stir spot welding of plastics

Kaştan

2023

Journal of Elastomers & Plastics

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In friction stir spot welding applications, there are some factors that provide welding strength, welding performance and the formation of defects that may occur in welding. Among these factors, machine parameters and welding tool design should be compatible with each other. If these factors are not chosen appropriately, the welding will not be of the desired quality. In this study, high density polyethylene sheets were joined using friction stir spot welding technique. It has been determined that some of the joints made have low weld strength, defects on the weld surface and around the stir zone. By investigating the causes of these defects, suggestions were made to prevent these defecs It has been observed that these defects are not repeated in the welds made with the suggestions made and it has been determined that high weld strength can be obtained. The highest weld strength and performance were obtained by 0.2–0.4 mm plunge depth, 45–60 s stirring time, 700–900 tool rotation speed and 30 mm shoulder diameters. In order to obtain a perfect weld in friction stir spot welding, it was determined that a homogeneous mixture should be formed between the stirring zone and the thermo-mechanically affected zone. Low weld strength was obtained in all joints with defects detected in these regions. Low weld strengths and weld defects were detected at dwell times of less than 30 s, at all tool rotational speeds with a stirring time of less than 45 s, at a plunge depth greater than 0.4 mm, and at low tool rotation speeds.

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The effect of Zn coating layer on the microstructure and mechanical properties of friction stir spot welded galvanized DP590 high-strength steel plates

Rong

Chen

et al. 2021

Int J Adv Manuf Technol

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Friction stir spot welded joints of 409L stainless steels fabricated by a convex shoulder tool

Cited by 12 publications

References 18 publications

Friction stir welding of aluminium to magnesium: A critical review

Friction stir welding of aluminium to magnesium: A critical review

Investigation of welding defects in friction stir spot welding of plastics

The effect of Zn coating layer on the microstructure and mechanical properties of friction stir spot welded galvanized DP590 high-strength steel plates

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