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Spin welding of 3D‑printed and solid acrylonitrile-butadiene-styrene (ABS) components: a preliminary investigation

Bagheri Abbasali, Asghari Vahid, Kami Abdolvahed

Archives of Civil and Mechanical Engineering

2022

Vol. 22, no. 3

art. no. e130

In this study, spin welding was used to join 3D-printed (3dp) and solid acrylonitrile-butadiene-styrene (ABS) rods. The fused filament fabrication method was utilized to make the 3dp ABS rods. These rods had a diameter of 12.5 mm and internal fill percentages of 50, 75, and 100. At three different spindle speeds, 710, 1000, and 1400 rpm, two distinct joints were created: 3dp/3dp and 3dp/solid joints. These weld joints' tensile characteristics were investigated. The fracture section of the joints was analyzed employing field-emission scanning electron microscopy, and the causes for the fracture of the joints were explored. Furthermore, the effects of the fill percentage and spindle speed on the joint’s tensile strength were studied using analysis of variance (ANOVA). Moreover, functional predictive equations for estimating weld strength were established. According to the results, the joints typically failed due to brittle fracture in the 3dp component of the weld joints. Furthermore, it was found that increasing the fill percentage and spindle speed enhanced the tensile strength of the weld joints. Moreover, 3dp/solid joints were stronger than 3dp/3dp joints.

Analyzing mechanical behavior of ABS-SiO2 polymer-based nanocomposite based on ANOVA method

Afzali Mohammad, Asghari Vahid

Composites Theory and Practice

2021

R. 21, nr 3

61--69

The fabrication of polymer-based nanocomposites by means of twin extruders is a typical method for manufacturing lightweight and high-strength structures. However, selection of the optimal parameters for this process to study the material characteristics is important. The primary aim of the present study was to ascertain the optimum extruder temperature and nanosilica content in an acrylonitrile-butadiene-styrene matrix composite. The response surface methodology was based on two factors and three levels. The identification of the effect of the parameters on the fatigue behavior of the fabricated composite was comprehensively analyzed. The results were analyzed using scanning electron microscopy (SEM). The obtained results revealed that up to 4% nano-SiO2 improves tensile strength and reduces the impact toughness. On the other hand, an increase in the extrusion temperature yields a higher impact toughness and lower tensile strength. The optimization results showed that 2.5% nanosilica and the extrusion temperature of 225°C result in the maximum tensile strength of 41 MPa, and impact toughness of 30 KJ/m2.