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Drilling tool geometry evaluation for reinforced composite laminates
Luís Miguel P. Durão; Daniel Joaquim Silva Gonçalves; João Manuel Ribeiro da Silva Tavares; Victor Hugo C. de AlbuquerqueIn this work, a comparative study on different drill point geometries and feed rate for composite laminates drilling is presented. For this goal, thrust force monitoring during drilling, hole wall roughness measurement and delamination extension assessment after drilling is accomplished. Delamination is evaluated using enhanced radiography combined with a dedicated computational platform that integrates algorit...
Tool effects on hybrid laminates drilling
Luís Miguel Pereira Durão; João Manuel Ribeiro da Silva Tavares; Victor Hugo Costa de Albuquerque; António Torres Marques; António G. MagalhãesFibre reinforced plastics are increasing their importance as one of the most interesting groups of material on account of their low weight, high strength and stiffness. To obtain good quality holes, it is important to identify the type of material, ply stacking sequence and fibre orientation. In this paper, the drilling of quasi-isotropic hybrid carbon+glass/epoxy plates is analyzed. Two commercial drills and a...
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