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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Development of the Oxyacetylene Welding Process for PEI/Glass Fiber Laminates

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Author(s):
Oliveira, V. S. [1] ; Lucas, R. R. [2] ; Carvalho, T. P. [2] ; Marques, L. F. [2] ; Reis, J. F. [2] ; Abrahao, A. B. R. M. [1] ; Botelho, E. C. [2]
Total Authors: 7
Affiliation:
[1] FATEC, Technol Coll, Pindamonhangaba - Brazil
[2] Sao Paulo State Univ UNESP, Dept Mat & Technol, Sch Engn, Guaratingueta - Brazil
Total Affiliations: 2
Document type: Journal article
Source: WELDING JOURNAL; v. 100, n. 4, p. 142S-149S, APR 2021.
Web of Science Citations: 0
Abstract

The technology for joining thermoplastics through welding offers numerous advantages over mechanical joining. Currently, the joining of composite parts with weight reduction and cost savings is being developed to improve aircraft performance. This paper proposes the use of oxygen acetylene as a process for bonding composite materials. Oxyacetylene welding is a simple and economical method that can be suitable for polymeric materials. The advantage of applying this technique is a more accessible process that is composed of a portable system with low cost. In evaluating the welding efficiency for composite materials, the lap shear strength (LSS) mechanical test stands out among the most referenced essays in the literature. This work aimed to study the development of oxyacetylene flame welding as well as the optimization of welding parameters for polyetherimide/glass fiber composite. The optimization was performed using complete factorial planning 22 as a tool, and the variables studied were time and distance of the flame. With the optimized condition set as the response variable with the highest lap shear value, the joints obtained were measured for their quality by means of end-notched flexure mechanical testing, thermal analysis, and fracture analysis after LSS testing using optical and electronic microscopy. (AU)

FAPESP's process: 17/16970-0 - Obtaining and Characterization of Nanostructured Thermoplastic Composites for Aeronautical Application
Grantee:Edson Cocchieri Botelho
Support Opportunities: Regular Research Grants