This book is the documentation of the 6th International Conference on Mechanical Engineering and Applied Composite Materials (MEACM2023), which took place in Sanya, China, on December 28-29, 2023.

Heat Treatment of Agricultural Machinery Wear-Resistant Parts Made of 34MnB5 Steel.- The Effects of Thermo Mechanical Control Process on the Microstructure and Properties of 10B21 Cold Heading Steel.- Effects of Heat Treatment Processes on the Microstructure and Properties of 20CrMo Alloy Steel.- Noncontact Parallel Machining of Droplet Structure via Temperature Control.- Anti-Plane Waves in an Elastic Two-Layer Plate with Surface Effects.- Underwater Explosion Damage Mechanisms and Protection of Double-hull Under Shaped Charge.- Linear Active Disturbance Rejection Control on Magnetorheological Suspension System of Heavy Vehicle.- An Indirect Parameter Calculation Method of Heat Dissipation Model for Direct Air Cooling System Finned Tubes Based on Experimental Samples.- Programmable Full Replacement of Computer VM Value Performance Differences.- A Review on Stiffness Calculation of Machine Tools.- Simulation Analysis on Dynamic Characteristics of Vibration Pile System.- A Summary on Stiffness Analysis Method of Machine Tools.- Research Status and Development Trends in the Hybrid Lubrication Performance of Wind Turbine Sliding Bearings in Wind Turbines.