Drilling of Carbon Fibre Reinforced Laminates – A Comparative Analysis of Five Different Drills on Thrust Force, Roughness and Delamination

Abstract:

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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.

Info:

Periodical:

Materials Science Forum (Volumes 636-637)

Edited by:

Luís Guerra ROSA and Fernanda MARGARIDO

Pages:

206-213

DOI:

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

Citation:

L. M. P. Durão et al., "Drilling of Carbon Fibre Reinforced Laminates – A Comparative Analysis of Five Different Drills on Thrust Force, Roughness and Delamination", Materials Science Forum, Vols. 636-637, pp. 206-213, 2010

Online since:

January 2010

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$35.00

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