Controlling the pressure force to obtain a better quality of aluminum 6061 friction stir welded joint

Darmadi, Djarot B.; Abdillah, Faizal Novanti; Raharjo, Rudianto

doi:10.15587/1729-4061.2019.159286

Cited by 5 publications

(4 citation statements)

References 7 publications

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“…A review study on the application of solid state welding to join dissimilar metals has been published [16]. The effect of parameters on the resulted strength of the joint has also been studied, such as the effect of pressure force [17] and the length of the pin [18].…”

Section: Introductionmentioning

confidence: 99%

Stress Corrosion Cracking Threshold for Dissimilar Capacitive Discharge Welding Joint with Varied Surface Geometry

Darmadi

Gapsari

Lobo³

et al. 2020

Applied Sciences

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Stress corrosion cracking (SCC) is known as a major factor that should be considered in the assessment of welding joint structure integrity. Despite the promising and wide application of dissimilar metal joints, the currently available SCC mitigation technique of dissimilar metal joints is not adequate. The challenge is to obtain a good joint while different melting points exist. This article reports a novel SCC mitigation method on a brass–steel dissimilar metal joint by modifying the geometry of the surface. It is evidenced that the sharpened steel (α1 specimen) significantly improves the SCC resilience of the joint. The evaluation of SEM/EDS photos reveals that the α1 geometry induces a smaller pore area around brass–steel micro-joint interfaces which in turn produces stronger joints.

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Section: Introductionmentioning

confidence: 99%

Stress Corrosion Cracking Threshold for Dissimilar Capacitive Discharge Welding Joint with Varied Surface Geometry

Darmadi

Gapsari

Lobo³

et al. 2020

Applied Sciences

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“…FSW with the material below 1000 microns is also called Micro Friction Stir Welding (µFSW), which was first discovered by TWI 1991 [9]. FSW has been proven to be able to join several similar materials such as aluminum alloys [10,11], steel alloy [12], magnesium [13], copper [14] dan titanium [15]. Paper [10] reports on using FSSW to weld aluminum materials with a thickness of less than 1 mm.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Indentifying the effect of micro friction stir spot welding (µFSSW) parameters on weld geometry, mechanical properties, and metallography on dissimilar materials of AZ31B and AA1100

Membala

Sutresman

Arsyad

et al. 2022

EEJET

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Micro-friction stir spot welding (µFSSW) is one type of welding that is suitable for joining lightweight materials. One of the challenges in joining lightweight materials with µFSSW is that the material is easily perforated, or the join is not strong enough, so it is necessary to select the right µFSSW parameters. In this article discusses about investigates the micro-Friction Stir Spot Welding (µFSSW) parameters on weld geometry, mechanical properties, and metallography on dissimilar materials of AZ31B and AA1100. The material thickness of the AZ31B and AA100 is 0.5 mm and 0.32 mm, respectively. The µFSSW tool is made of high-speed steel (HSS) with a pin diameter of 0.25 mm and a shoulder diameter of 0.5 mm. The constant process parameters of the µFSSW joint used, i. e., plunge depth, dwell time plunge rate, and high tool rotational speed of 33,000 rpm. Welding test results include weld geometry, mechanical properties, and metallography. Weld geometry testing to determine the weld nugget diameter. The mechanical properties test was shear tensile test and cross tensile test, while the metallographic test included macrostructure and microstructure observations. The results of the FSSW weld geometry show that at a dwell time of 700 milliseconds and a plunge depth of 600 microns, the weld pin diameter and weld shoulder diameter are close to the pin diameter and the diameter of the shoulder tool used. Dwell time and plunge depth has a significant effect on tensile strength. The maximum shear and cross loads achieved were 387±17 N and 29±2 N, respectively. Intermetallic compounds (IMC) are observed at the interface of the two materials, while a dwell time of 700 milliseconds give the effect of cracks on the inside of the weld

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“…Research is underway into the methods to qualify the welding processes [6][7][8]. Conventional engineering design and technological ways of ensuring quality are the control over the process regime parameters [9,10], the optimization of structural solutions [11,12] for welding products. In modern manufacturing, quality assurance by engineering methods only is impossible.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Analysis of the influence of the systemic welding coordination on the quality level of joints

Haievskyi¹,

Kvasnytskyi²,

Haievskyi³

et al. 2020

EEJET

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The need for welding coordination is due to the significant risks of non-compliance with the requirements for welded joints. It is known that the request of coordination standards in welding streamlines the work of ensuring the quality of welding, it is positively perceived by customers and other stakeholders. However, the effect of systemic welding coordination on objective indicators of the quality of welded joints during production requires detailed studying. The comparative statistical analysis of the effect of systemic welding coordination on the level of welded joints' quality was preceded by the process-oriented development and implementation of a set of procedures for the coordination of welding operations in the production of welded frames. A scheme of interaction and the classification of coordination procedures in welding have been proposed. The procedures were divided into three groups. The first group includes long-term welding quality procedures. The second group is the procedures for ensuring the quality of welding in the execution of a Request (Order, Contract). The third group consists of procedures to ensure and improve the quality of welding a joint. The implementation of regulatoryorien ted content of the procedures ensures the admission of personnel with necessary qualifications, the application of appropriate welding equipment, materials, technical documentation, thermal treatment, technical control. All this together ensures that the requirements for the welded joint, the specified thickness of the main metal, the type of a joint and seam, are met. Data on the quality of welded frames during production were obtained prior to and after the introduction of the international standards of welding coordination. Using the Shewhart charts has shown that ensuring quality by the welding coordination could stabilize the welding process, translating it into a statically manageable state while doubling the proportion of nonconforming units in the sample

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Controlling the pressure force to obtain a better quality of aluminum 6061 friction stir welded joint

Cited by 5 publications

References 7 publications

Stress Corrosion Cracking Threshold for Dissimilar Capacitive Discharge Welding Joint with Varied Surface Geometry

Stress Corrosion Cracking Threshold for Dissimilar Capacitive Discharge Welding Joint with Varied Surface Geometry

Indentifying the effect of micro friction stir spot welding (µFSSW) parameters on weld geometry, mechanical properties, and metallography on dissimilar materials of AZ31B and AA1100

Analysis of the influence of the systemic welding coordination on the quality level of joints

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