Delamination analysis of carbon fibre reinforced laminates: evaluation of a special step drill

• Tipo: Artigo em Revista Científica Internacional
• Data: 2009

Autores

António T. Marques (Autor) FEUP; Luís M. Durão (Autor) FEUP; António G. Magalhães (Autor) FEUP; João Francisco Silva (Autor) FEUP; João Manuel R. S. Tavares (Autor) FEUP

Revista

Título: Composites Science and Technology

Vol. 69 Nº 14

Páginas: 2376-2382

ISSN: 0266-3538

Editora: Elsevier

Indexação

ISI Web of Knowledge - 71 Citações

ISI Web of Science

Scopus - 119 Citações

INSPEC

COMPENDEX

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia mecânica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia de materiais ; Ciências Tecnológicas > Tecnologia > Tecnologia de computadores > Processamento de imagem

Outras Informações

ID Authenticus: P-003-EHM

DOI: 10.1016/j.compscitech.2009.01.025

Abstract (EN): Drilling of carbon fibre/epoxy laminates is usually carried out using standard drills. However, it is necessary to adapt the processes and/or tooling as the risk of delamination, or other damages, is high. These problems can affect mechanical properties of produced parts, therefore, lower reliability. Production of higher quality holes is a challenge to everyone related with composites industry. In this paper, four different drills - three commercial and a special step (prototype) - are compared in terms of thrust force during drilling and delamination. In order to evaluate damage, enhanced radiography is applied. The resulting images were then computational processed using a previously developed image processing and analysis platform. Results show that the prototype drill had encouraging results in terms of maximum thrust force and delamination reduction. Furthermore, it is possible to state that a correct choice of drill geometry, cutting speed or feed rate can help delamination reduction.

Idioma: Inglês

Tipo (Avaliação Docente): Científica