Studies on drilling of carbon carbon composite laminate

Abstract

Carbon carbon composites or simply called C C laminates find numerous applications such as domestic appliances industrial and automobile spares Carbon based reinforced composites possess better structural properties such as high strength and stiffness Besides they have good chemical resistance and possesses good fatigue behaviour Apart from these carbon based materials fiber reinforced type of composites also finds applications especially in aerospace domain While considering the significance of these carbon composite based laminates their selection over conventional materials could be justified These composite materials face critical problems during component fabrication such as cutting drilling and shaping to desired sizes Drilling is often necessary to assemble different parts of the components which lead to the damages during the process Standard drill like brad drill or twist like drills are generally used to drill the carbon carbon laminates The drilling process needs to be controlled to avoid the delamination during drilling Otherwise it can lead to the physical damage of the components Therefore the production of the components can be greatly affected due to their lower reliability In industrial sector reduction of wastage and fabrication of defect free components can increase the productivity and thereby it can increase the profit to the industrial sector The usage of different drills can produce different thrust force on the component during drilling machining and therefore the delamination factor can be controlled considerably newline