Evaluation of the performance of coated and uncoated carbide tools in drilling thick CFRP/aluminium alloy stacks
Idioma
en
Article de revue
Este ítem está publicado en
International Journal of Advanced Manufacturing Technology. 2013-02-19, vol. 68, p. 2111-2120
Springer Verlag
Resumen en inglés
This paper aims to establish the wear mechanisms of coated and uncoated tungsten carbide drills when drilling carbon fibre reinforced plastics (CFRP)/aluminium alloy (Al) stacks. During the drilling experiments, thrust ...Leer más >
This paper aims to establish the wear mechanisms of coated and uncoated tungsten carbide drills when drilling carbon fibre reinforced plastics (CFRP)/aluminium alloy (Al) stacks. During the drilling experiments, thrust forces were measured. A scanning electron microscope (SEM) and a numerical microscope, provided with a scanning device, were periodically used to analyse tool wear mechanisms and to measure wear progression of the tool cutting edges. For both coated and uncoated drills, abrasion was the dominant tool wear mechanism, affecting the entire cutting edges. Higher wear was observed on uncoated tools which caused a significant increase in thrust force during drilling both Al and CFRP materials. The influence of these phenomena on the quality of the holes and on the generated roughness was also discussed.< Leer menos
Palabras clave en inglés
Drilling
Composite/aluminium stacks
tools wea
holes quality
thrust force
Orígen
Importado de HalCentros de investigación