Experimental investigation of resistance welded polypropylene nanocomposite joints

Jafrey, Daniel D.; Panneerselvam, K.

doi:10.1080/01694243.2018.1478601

Cited by 10 publications

(1 citation statement)

References 22 publications

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“…There will be less complexity in the process if an energy director isn't needed for ultrasonic welding of parts that are lapped. [35] The goal of this investigation was to see if a 4-mm-thick PBI-reinforced HDPE composite without the need for an energy director could be successfully welded using ultrasonic welding. Part one covers the experimental process, which includes the materials, experimental setup, sample production and testing, mechanical testing, and fractography analysis.…”

Section: Introductionmentioning

confidence: 99%

Welding Analysis and Optimization of Ultra- Sonic Welding in HDPE-5%PBI Composite by CODAS Decision-Making Approach

Рамеш¹,

Panneerselvam

2022

Preprint

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Engineering plastics are increasingly being used in structural and non-structural applications. As the need for plastics grows, so do the joining requirements. Ultrasonic welding is one of the favoured processes for polymer composites among numerous approaches, especially for bonding plates, automotive panel boards and couplings due to its joint quality and low cost. The High-density polyethylene (HDPE) matrix was reinforced with 5 wt.% of polybenzimidazole (PBI) fibre by twin screw extrusion process and welding samples were prepared using injection moulding. In this study, Ultrasonic welding was used to connect 4-mm-thick lapped HDPE-5wt. % PBI composites. Taguchi-based L27 orthogonal array was employed for experiments to study the lateral shear strength (LSS) and Shore-D-Hardness for the input parameters (i) weld duration (30,45 and 60 ms), (ii) Amplitude (19,20 and 21 Hz) and (iii) Horn pressure (1.5,2 and 2.5 MPa). The relevance of the parameters affecting shear strength and hardness of weld was studied using analysis of variance (ANOVA). The ultrasonic welding process was carried out, and the multi-criteria decision-making (MCDM) approach was used to optimise the process parameters. To determine the optimal amount of input parameters for multi-objective optimization criteria on Shear strength and Shore D Hardness, entropy approach weights 0.5, 0.5 are combined with combinative distance-based assessment (CODAS) technique. From CODAS assessment the relative evaluation score of 2.444 was achieved by the twenty fifth experiment having the input parameters (IP) at 60 ms welding time, Amplitude of 21 Hz and Pressure at 2.5 MPa. Fractography and weld morphology of welded joints were investigated using scanning electron microscope (SEM).

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Section: Introductionmentioning

confidence: 99%

Welding Analysis and Optimization of Ultra- Sonic Welding in HDPE-5%PBI Composite by CODAS Decision-Making Approach

Рамеш¹,

Panneerselvam

2022

Preprint

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The influence of process parameters and carbon nanotubes on composite material joints

Liu,

Wang,

Fan

et al. 2024

Polymer Composites

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Through resistance welding experiments, the effects of process parameters and heating elements (HE) on the welding strength of carbon fiber reinforced polyamide 6 (CF/PA6) composites were studied. Stainless steel mesh was used as the heating element for welding CF/PA6 composites. The mechanical properties of the weld were tested using a universal testing machine, and the internal structure and fracture of the joint were analyzed by scanning electron microscopy (SEM). The optimal parameters for welding CF/PA6 composites were determined. In addition, the growth of carbon nanotubes (CNTs) on the surface of the metal mesh significantly improved the welding strength, from 14.016 to 16.31 MPa. The experimental results showed that the optimal parameters included 22A current, 0.3 MPa pressure and 35 s welding time, and the optimal specification of the metal mesh heating element was 200 mesh. The burning time of the metal mesh was 10 s, and the optimum pickling time was 30 s.Highlights The matrix of the composite material is nylon 6. Improved the experimental process for growing carbon nanotubes. Explore the influence of burning time on welding effect through detection.

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Resistance welding of thermoplastic composites with nanofiber films prepared by electrospinning technique

Zhao

Chen

Xia

et al. 2023

Composites Part B: Engineering

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Experimental investigation of resistance welded polypropylene nanocomposite joints

Cited by 10 publications

References 22 publications

Welding Analysis and Optimization of Ultra- Sonic Welding in HDPE-5%PBI Composite by CODAS Decision-Making Approach

Welding Analysis and Optimization of Ultra- Sonic Welding in HDPE-5%PBI Composite by CODAS Decision-Making Approach

The influence of process parameters and carbon nanotubes on composite material joints

Resistance welding of thermoplastic composites with nanofiber films prepared by electrospinning technique

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