Joining of Nylon 6 plate by friction stir welding process using threaded pin profile

Panneerselvam, K.; Lenin, K.

doi:10.1016/j.matdes.2013.07.017

Cited by 123 publications

(61 citation statements)

References 17 publications

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“…Panneerselvam y Lenin [6], determinaron el efecto en la dirección de rotación en una herramienta con pin cilíndrico roscado sobre las propiedades mecánicas en juntas de Nylon 6. Estos autores encontraron que, cuando la dirección de flujo difiere de la dirección de rotación de la herramienta (el flujo de material es confinado hacia abajo), las propiedades mecánicas aumentan.…”

Section: Soldabilidad De Polietileno De Alta Densidad Usando Soldadurunclassified

“…Se realizaron las soldaduras de forma perpendicular al sentido de laminación con sentido de rotación de la herramienta antihorario [6]. Soldabilidad de Polietileno de Alta Densidad Usando Soldadura por Fricción-agitación con una Herramienta de Hombro no Rotacional Para la determinación de la ventana de procesos se ha utilizado combinaciones de los parámetros mostrados en la Tabla 1, con los cuales se realizaron juntas soldadas con las herramientas convencional y no convencional.…”

Section: Ventanas De Proceso Y Soldaduras Preliminaresunclassified

“…Así mismo, se observa que el valor medio de la dureza en la zona agitada, independiente de su ubicación, es siempre menor que la del material base (línea punteada). En general la dureza media de las juntas soldadas disminuye con el aumento de las velocidades de rotación y de avance [6].…”

Section: Durezasunclassified

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Soldabilidad de Polietileno de Alta Densidad Usando Soldadura por Fricción-agitación con una Herramienta de Hombro no Rotacional

et al. 2016

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Este es un artículo publicado en acceso (Open Access) abierto bajo la licencia Creative Commons Attribution NonCommercial, que permite su uso, distribución y reproducción en cualquier medio, sin restricciones siempre que sin fines comerciales y que el trabajo original sea debidamente citado.Recibido: 23 Ago., 2016 Aprobado: 02 Fev., 2017 E-mail: junfried1@cuc.edu.co (JUS)Resumen: En este trabajo se estudió la soldabilidad de polietileno de alta densidad (PEAD) mediante el proceso de soldadura por fricción agitación (SFA), usando dos herramientas diferentes, una convencional y otra con hombro no rotacional, denominada no convencional. La evaluación comparativa fue realizada bajo combinaciones de los parámetros de velocidad de rotación (v W ) y velocidad de avance (v A ) ajustados para cada herramienta. La soldabilidad fue valorada con base en inspección visual, la presencia de discontinuidades mediante estereoscopia y microscopia confocal y la dureza en las juntas soldadas. Como resultado se obtuvo que la herramienta no convencional permitió obtener juntas soldadas libres de discontinuidades y con excelente apariencia externa gracias al menor calor aportado. La dureza en la zona agitada fue menor a la del material base, mostrando comportamientos diferenciados en los lados de avance y retroceso en función de los parámetros de proceso.Palabras-clave: Soldadura por Fricción Agitación (FSW); Polietileno; Discontinuidades; Soldabilidad. Weldability of High Density Polyethylene Using Friction Stir Welding with a Non-rotational Shoulder ToolAbstract: In this work was studied the weldability of high density polyethylene (HDPE) using friction stir welding (FSW) process, and two kind of tools, denominated conventional, and non-conventional tool, which has a non-rotating shoulder. Evaluation was performed using combination of parameters of rotation speed (v W ) and welding speed (v A ), which were adjusted for each type of tool. Weldability was estimated based on visual inspection, the presence of discontinuities, and tests of stereoscopy and confocal microscopy, and hardness in welded joints. Results shows that the unconventional tool obtains welded joints free of discontinuities and an excellent external appearance due to low heat input. The hardness decreased in the stirred zone compared to material base, showing different behavior on the retreating and advancing sides, depending on the process parameters. Key-words:Friction Stir Welding (FSW); High Density Polyethylene (HDPE); Discontinuities; Weldability. IntroducciónA pesar de que la mayoría de los polímeros termoplásticos pueden ser moldeados fácilmente hasta obtener la forma general deseada, muchas piezas de estos materiales requieren unión mecánica sin adhesivos para la obtención de la forma final. Por esta razón, en los últimos años ha cobrado gran interés la implementación de soldaduras en estado sólido para materiales termoplásticos [1]. Uno de los procesos más promisorios para este tipo de uniones es la soldadura por fricción-agitación (SFA) (-por su acrónimo e...

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Section: Soldabilidad De Polietileno De Alta Densidad Usando Soldadurunclassified

Section: Ventanas De Proceso Y Soldaduras Preliminaresunclassified

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Soldabilidad de Polietileno de Alta Densidad Usando Soldadura por Fricción-agitación con una Herramienta de Hombro no Rotacional

et al. 2016

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“…After few seconds as the dwelling time of preheating and softening of the material, the tool starts to moves along the weld line. Since the tool is removed when it reached to the end of the line, a hole is created at the end of the joint interface (Panneerselvam and Lennin 2014). Since the tool rapidly cools in the air and no chips or flashes are produced in the process, there is no need to apply cooling or cleaning procedure.…”

Section: Process Preparationmentioning

confidence: 99%

Mechanical properties of friction-stir-welded polyamide sheets

Husain

Salim

Azdast

et al. 2015

Int J Mech Mater Eng

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Background: In this study, the effect of processing parameters on the mechanical properties of friction-stir-welded polyamide (nylon 66) sheets is investigated. Methods: Commercial polyamide sheets with the dimension of 250 × 150 × 8 mm are used in experimentations. The processing parameters considered in the welding include: rotational speeds in five levels and traverse speeds in three levels. Tensile and impact tests are performed in order to evaluate mechanical behavior of welded sheets. Full-factorial design of experiments and also analysis of variance was performed in present study. Results: Results show that when rotational speed increases, weld strength first increases and then decreases. In other words, there is an optimum rotational speed in which the welded samples could obtain the highest tensile Strength. Regarding the traverse speed, weld strength decreases with increasing of the traverse speed. Conclusions: Obtained results show a significant relationship between considered properties and processing parameters through an analysis of variance (ANOVA) study.

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“…They hypothesized that the welds should be made at a low translational speed, high shoe temperature, long pressure time and large pin diameter. Panneerselvam et al [10] [24]. In this study, a continuous friction stir welded butt joining process is described for unreinforced PPS.…”

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Investigation and development of friction stir welding process for unreinforced polyphenylene sulfide and reinforced polyetheretherketone

Ahmed

Tooren

Justice

et al. 2018

Journal of Thermoplastic Composite Materials

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The joining of thermoplastics through welding offers numerous advantages over mechanical joining. Most importantly, it eliminates the use of costly fasteners and has only a limited effect on the strength of the parts being joined. Since it does not require the introduction of holes, loading pins, and the associated stress concentrations, a specific form of welding, friction stir welding (FSW), was investigated for the creation of butt joints of unreinforced polyphenylene sulfide (PPS) and short carbon fiber (CF)-reinforced polyetheretherketone (PEEK) plates. Unlike metals, analytical models and experimental results show that the heat generated by the FSW tool is insufficient to produce the heat required to weld thermoplastic materials. Therefore, a second heat source is required for preheating these thermoplastics. In this research, a resistance type surface heater was placed at the bottom of two identical weld pieces to produce good quality welds. Two types of shoulder design such as rotating shoulder and stationary shoulder were developed in this study. Taguchi’s design of experiment method was utilized to develop the welding process, where heating duration, material temperature, tool rotational speed, and tool traverse speed were used as the welding parameters. One of the process parameters, tool traverse speed, had significant influence on the tensile strength of PPS samples. While PPS sample showed relatively lower tensile strength with higher traverse speed, short CF-reinforced PEEK samples had higher tensile strength with a higher traverse speed. In addition to tensile tests, fracture toughness tests were performed for both PPS and PEEK samples to observe the influence of unwelded segments in the welded parts. In this study, joint efficiency of PEEK samples was found to be higher than that of PPS samples. Micrographs of PEEK samples showed uniform homogenous mixture of part materials.

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Joining of Nylon 6 plate by friction stir welding process using threaded pin profile

Cited by 123 publications

References 17 publications

Soldabilidad de Polietileno de Alta Densidad Usando Soldadura por Fricción-agitación con una Herramienta de Hombro no Rotacional

Soldabilidad de Polietileno de Alta Densidad Usando Soldadura por Fricción-agitación con una Herramienta de Hombro no Rotacional

Mechanical properties of friction-stir-welded polyamide sheets

Investigation and development of friction stir welding process for unreinforced polyphenylene sulfide and reinforced polyetheretherketone

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