主题词：Advanced machining processes and optimization; Metallurgy and Material Forming; Gear and Bearing Dynamics Analysis; Metal Forming Simulation Techniques; Manufacturing Process and Optimization; Mechanical Engineering and Vibrations Research; Metal Alloys Wear and Properties; Tribology and Lubrication Engineering; Engineering Technology and Methodologies; Microstructure and Mechanical Properties of Steels; Structural Load-Bearing Analysis; Tribology and Wear Analysis; Advanced Machining and Optimization Techniques; Metal and Thin Film Mechanics; Fatigue and fracture mechanics; Engineering Diagnostics and Reliability; Laser and Thermal Forming Techniques; Advanced Surface Polishing Techniques; Composite Structure Analysis and Optimization; Welding Techniques and Residual Stresses; Hydraulic and Pneumatic Systems; Structural Analysis and Optimization; Advanced Combustion Engine Technologies; Additive Manufacturing and 3D Printing Technologies; Engineering Applied Research