drilling microstructure 6 History of engineering & technology 5 wear 5 Technology: general issues 4 additive manufacturing 4 mechanical properties 4 surface integrity 4 3D printing 3 ANOVA 3 CFRP 3 FDM 3 Inconel 718 3 PLA 3 Ra 3 WAAM 3 aluminum 3 chip geometry 3 design 3 dry machining 3 finite element analysis 3 forming 3 friction 3 fused deposition modeling 3 fused filament fabrication 3 heat flux 3 incremental forming 3 infill density 3 laser 3 layer orientation 3