Analysis of drilling-induced geometrical damages in basalt and carbon fibre-reinforced polymer (BFRP and CFRP) composites

Abstract Basalt fibre-reinforced polymer (BFRP) composites probably tend to replace some carbon (CFRP) applications due their excellent specific strengths and sustainability. Despite the published early promising results concerning material properties of BFRP, application is not widespread, machinability supported widely by experiences. The main aim present study experimentally investigate drilling-induced geometrical damages BFRP CFRP composites. Drilling experiments were conducted at various feed cutting speed levels using a solid carbide twist drill. burr was analysed Mitutoyo 361–804 digital microscope, SJ400 surface tester recorded roughness, microstructure Zeiss Evo MA 10 scanning electron microscope. measured data evaluated through image processing (DIP), response methodology (RSM), analysis variances (ANOVA). experimental show that more severe roughness worse in than CFRP. composite type influenced primarily, followed case burrs roughness. suggests drilling even challenging from point view formation micro properties.