EDC Nimonic-90 SLM technology T1-995 TA1-2040 Ti-6Al-4V abrasive machining additive manufacturing adhesion strength alloy alloying aluminium matrix composite aluminum alloy 6061 T6 artificial neural network bioactivity burr chips corrosion resistance cutting temperature drilling dynamometer elastic modulus environmentally friendly evolutionary algorithm forces fused deposition modelling hard turning hard–to–cut materials high speed milling (HSM) hole quality