Drilling of carbon fibre reinforced laminates – a comparative analysis of five different drills on thrust force, roughness and delamination

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Luís M. P. Durão (Author) FEUP; Daniel J. S. Gonçalves (Author) FEUP; João Manuel R. S. Tavares (Author) FEUP; Victor Hugo C. Albuquerque (Author) FEUP; A. Torres Marques (Author) FEUP; A. M. Baptista (Author) FEUP

Journal

Title: Materials Science Forum

Vol. 636-637

Pages: 206-213

ISSN: 0255-5476

Publisher: Trans Tech Publications Ltd

Indexing

ISI Web of Science

Scopus

COMPENDEX

INSPEC

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Other information

DOI: 10.4028/www.scientific.net/MSF.636-637.206

Abstract (EN): The distinguishing characteristics of carbon fibre reinforced laminates, like low weight, high strength or stiffness, had resulted in the increase of their use during the last decades. Although parts are normally produced to “near-net” shape, machining operations like drilling are still needed. In result of composites non-homogeneity, this operation can lead to delamination, considered the most serious kind of damage as it can reduce the load carrying capacity of the joint. A proper choice of tool and cutting parameters can reduce delamination substantially. In this work, the results obtained with five different tool geometries are compared. Conclusions show that the choice of adequate drill geometry can reduce the thrust forces and consequently, the delamination damage.

Language: English

Type (Professor's evaluation): Scientific