Investigation on the Correlation between CNC Spindle Current Value and Tool WearInfluence of 3D Printing Parameters on Mechanical Properties of the PLA Parts Made by FDM Additive Manufacturing ProcessFailure Investigation & Analyses of AISI D3 Dies Used in Tableting Machines for Pharmaceutical ApplicationConsiderations Regarding the Extension of the Service Life of Metal Wear Components from Urban Means of Rail TransportDamage Occurrence in Welded Structures of the Bucket-Wheel BoomInnovative Solutions for Waste Removal (Used Abrasive) Resulted from Water Jet Cutting ProcessExperimental Study on Truss-Column Pinned Connections in Large-Span Steel StructuresHighlights of Earned Value Analysis in Construction Projects