Feasibility study of the Oxy Fuel Gas Welding (OFW) process in AA2024-T3 and GF/PEI composite hybrid joint

Reis, Jonas Frank; Marques, Luís Felipe Barbosa; Abrahao, Ana Beatriz Moreira; Nakazato, Roberto Zenhei; Botelho, Edson Cocchieri

doi:10.1007/s40194-021-01091-6

Cited by 2 publications

(2 citation statements)

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“…Previous works provide more details on the experimental design. 5,6,16 Table 1 shows the points investigated for the welding and presents the values obtained by the static model Central Composite Design (CCD) rotational star using the 400 mesh.…”

Section: Methodsmentioning

confidence: 99%

“…Previous studies have characterized different types of joints, including welding, in aerospace structural composites such as PEI/CF and PPS (poly (phenylene sulfide))/CF to evaluate the joining techniques and their properties. 1,13–15 Studies have evaluated the openings of metallic resistive element meshes correlating with the shear strength properties in the welded regions, 11 hybrid welding attempts using OFW process, 16 and chemical attack effects on welded regions of the PEI/GF. 17 However, the data are limited that relate and characterize the properties of this composite and welding.…”

Section: Introductionmentioning

confidence: 99%

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Interfacial, mechanical, and thermal behavior of PEI/glass fiber welded joints influenced by hygrothermal conditioning

Marques

Reis

Abrahão

et al. 2021

Journal of Composite Materials

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This work aims to characterize the influence of hygrothermal conditioning on the mechanical and thermal behavior as well as the fractographic aspects of the interface of poly(ether imide) and glass fiber composite joints welded by electrical resistance using 400 mesh of AISI 304 stainless steel. The composites were mechanically characterized by Lap Shear Strength (LSS) and End Notched Flexure (ENF) testing to investigate maximum shear stress and energy from mode II interlaminar fracture toughness. Fractography was performed by SEM, while the influence on glass transition temperature and working temperature were evaluated by Dynamic-Mechanical Analysis and thermogravimetry. In the conditioned samples, the mechanical properties reduced 23% in the LSS test and 28% in the ENF test, while the fractography studies revealed elements of interlaminar and intralaminar fracture in both conditions. Thermal properties did not change significantly to disqualify this composite when applied to welding.

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Section: Methodsmentioning

confidence: 99%