Improvements of mechanical properties in dissimilar joints of HDPE and ABS via carbon nanotubes during friction stir welding process

Gao, Jicheng; Li, Chao; Shilpakar, Unisha; Shen, Yifu

doi:10.1016/j.matdes.2015.07.095

Cited by 96 publications

(32 citation statements)

References 32 publications

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“…11. The temperature of the material underlying the pin increases from the central region (characterized by a low radial tool speed) up to a maximum in correspondence of the tool pin corner (where the highest radial speed is reached) [31].…”

Section: Discussionmentioning

confidence: 99%

“…They demonstrated that the FSS welds performed on such nanocomposites were equal or better than those obtained with other commonly used welding processes. Gao et al [31] analyzed the influence of carbon nanotubes to improve the mechanical behavior of HDPE/ABS welds. Eslami et al [32] analyzed the influence of FSW parameters using a newly developed tool for welding PP/PE sheets.…”

Section: Introductionmentioning

confidence: 99%

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Effect of tool geometry on loads developing in friction stir spot welds of polycarbonate sheets

Lambiase

Paoletti

Ilio

2016

Int J Adv Manuf Technol

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Friction stir spot welding (FSSW) experiments were carried out on polycarbonate sheets to assess the influence of the tool geometry on the joining loads and material flow. An instrumented drilling machine was used to measure the plunging load and the torque developing during the process. Different tool geometries were tested involving the variation of the tool pin shape (cylindrical or tapered), diameter of the tool pin, and diameter of the tool shoulder. The analysis of material flow enabled understanding the behavior of the load and torque trends measured during the process, such as the presence of load peaks during the plunging phase and reduced values of the axial pressure during the process. It was discovered that the average axial pressure was higher during pin plunging (such value was mainly determined by the pin diameter) while it dramatically decreased (almost to 1.2 MPa) during shoulder plunging owing to the higher heating resulting from higher tangential speed. The pin taper angle had negligible influence on the plunging load and torque. The tool shoulder influenced the plunging load and torque while it produced a negligible variation in the average axial pressure. On the other hand, the pin diameter influenced both the process loads and the axial pressure.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of tool geometry on loads developing in friction stir spot welds of polycarbonate sheets

Lambiase

Paoletti

Ilio

2016

Int J Adv Manuf Technol

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“…ABS has been friction stir welded with HDPE in which carbon nanotubes were used to improve the mechanical strength of the weld. The multi wall nanotubes of carbon when reinforced in ABS increased the tensile strength and elongation properties of ABS [17]. It also has been investigated that 1°recycled ABS is of great importance in industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of extrusion parameters on primary recycled ABS: mechanical, rheological, morphological and thermal properties

Kumar

Singh

Ahuja

2020

Mater. Res. Express

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This paper reports the effect of twin screw extrusion (TSE) process parameters on primary (1°) recycled acrylonitrile butadiene styrene (ABS) for possible 3D applications. The ABS (virgin/recycled) is one of the most widely used thermoplastic materials for fused deposition modeling (FDM) based 3D printing of functional prototypes. But hitherto little has been reported on improving the mechanical/ rheological/morphological and thermal properties of (1°) recycled ABS while extrusion without any reinforcement (i.e. without secondary (2°) recycling). In this work the granules of 1°recycled ABS have been extruded after ascertaining suitable process parameters of TSE (namely: screw temperature, torque and dead weight). The results of study suggests that screw temperature 210°C, 0.3Nm torque and dead weight of 13 kg are the best settings for TSE in the present case study. The TSE based extruded 1°recycled ABS has improved crash resistance properties (as modulus of toughness was significantly improved to 3.261 MPa (from 0.191 MPa (for non TSE processed) and 0.081 for virgin ABS).

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“…Разработка и создание нанокомпозитов в настоящее время является одним из актуальных направлений научных и прикладных исследований. Благодаря модифицированию можно создать материалы на основе полимерных матриц, обладающие устойчивостью к механическим воздействиям [8], эрозионному износу [9], а при введении углеродных наноструктур -высокой электропроводностью [10,11].…”

Section: Introductionunclassified

Aspects of the directional synthesis of carbon nanotubes to create hierarchical radio-absorbing composite materials

Shchegolkov

Parafimovich

Burakova

et al. 2019

Vestn. Voronež. gos. univ. inž. tehnol.

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The conducted information review showed that there are various types of radio absorbing materials. The expansion of the working wavelength range for radio-absorbing composites is possible due to the combined use of conductive fillers, characterized by different magnetic and dielectric characteristics and the value of electrical conductivity. As a rule, the increase in the efficiency of radio absorption of materials is associated with an increase in the concentration of metal fillers in them, as a result of which the weight and size parameters increase proportionally. To avoid this, the use of carbon nanomaterials, which have the ability to create self-organizing hierarchical structures in the bulk of the composite, allows. Varying the composition of the catalytic systems of the CVD process allows directional synthesis of carbon nanomaterials with the necessary morphological characteristics. To assess the effect of the composition of the catalyst on the morphology and structure of the synthesized CNTs, 3 Ni / MgO catalyst compositions with different contents of the active component (Ni) were selected. The effectiveness of the obtained catalysts was determined by the specific yield of CNTs (gC/gkat). The morphology and structure of the catalysts and the synthesized CNTs were studied by means of scanning electron microscopy (a Hitachi H-800 transmission electron microscope). CNTs were additionally examined by transmission electron microscopy (a Hitachi H-800 transmission electron microscope). The use of a nickel-based catalyst provides the material with magnetic properties. The diameter of carbon filiform formations synthesized on Ni/0.16MgO and Ni / 0.3MgO catalysts is ~ 30 ? 60 nm. The Ni/0.5MgO system is characterized by low productivity in one-dimensional nanostructures; the sample after the CVD process contains a large number of unstructured forms of carbon and an unchanged catalyst. Structural diversity in carbon nanomaterials allows to obtain on their basis an effective hierarchical structure in the radio absorbing composite..

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Improvements of mechanical properties in dissimilar joints of HDPE and ABS via carbon nanotubes during friction stir welding process

Cited by 96 publications

References 32 publications

Effect of tool geometry on loads developing in friction stir spot welds of polycarbonate sheets

Effect of tool geometry on loads developing in friction stir spot welds of polycarbonate sheets

Effect of extrusion parameters on primary recycled ABS: mechanical, rheological, morphological and thermal properties

Aspects of the directional synthesis of carbon nanotubes to create hierarchical radio-absorbing composite materials

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