Resumo (PT):
In this study, we present the current state of our research concerning the drilling of different aluminium matrix composites. The experimental work was developed considering the machining process characteristics (drilling), through the continuous measuring of the torque and the feed force with an appropriate piezoelectric dynamometer. The wear type was identified and its evolution with cutting time was measured. The hole's surface finish was evaluated with a stylus instrument. We investigated the effect of the cutting fluid in the drilling of a composite type with cemented carbide drills.
Finally, we refer an attempt to obtain a correlation between flank wear evolution and feed force.
This attempt has been executed in order to verify if this method can be an indirect one of monitoring the wear and the condition of the drill.
Abstract (EN):
In this study, we present the current state of our research concerning the drilling of different aluminium matrix composites. The experimental work was developed considering the machining process characteristics (drilling), through the continuous measuring of the torque and the feed force with an appropriate piezoelectric dynamometer. The wear type was identified and its evolution with cutting time was measured. The hole's surface finish was evaluated with a stylus instrument. We investigated the effect of the cutting fluid in the drilling of a composite type with cemented carbide drills.
Finally, we refer an attempt to obtain a correlation between flank wear evolution and feed force.
This attempt has been executed in order to verify if this method can be an indirect one of monitoring the wear and the condition of the drill.
Language:
Portuguese
Type (Professor's evaluation):
Scientific