Delamination failure mechanisms that arise during the milling of Carbon Fiber Reinforced Polymers (CFRPs)
Dervis Ozkan Mustafa Sabri Gök Hasan GÖKKAYA Abdullah Cahit KARAOGLANLI
AbstractThe milling of carbon fiber reinforced polymers (CFRP) is a challenging process due to the non-homogeneous, anisotropic structure and extreme hardness of this type of material. Tool wear occurring during the machining process and the resulting failure mechanisms including delamination, matrix and fiber breakage have severely adverse effects on surface quality of machined products. Since deterioration of machined surface quality may impair the strength of components, particular importance is attached to this situation especially in aviation industry. As a failure mechanism arising from the machining of the materials, this situation may result in timeless damages on critical components, such that, almost 60 % milled CFRP components are discarded due to delamination-related damages. In this context, investigation of the failure mechanisms resulting from delamination and delamination-related situations arising during the milling of CFRP composites was aimed in the present research.