Preface Chapter 1: Composite Materials Strength Evaluation and Behaviors Studies of Hemp/Kenaf/Coir Fiber Reinforced Composites by Using Compression Moulding Advancements in Aluminium Matrix Composites: Applications and Future Trends in the Automotive Industry Experimental Investigation on the Tensile and Impact Strength of Ficus Religiosa Stem and Sisal Fiber Reinforced Polymer Hybrid Composites Exploring Mechanical Properties of Hemp, Sisal Fibers and Silicon Carbide Particle Reinforced Hybrid Epoxy Resin Composites BFRP Epoxy Composite's Impact Strength Enhancement by Hand Layup Method Addition of New Warmed Nano Clay Particles Improving Wear Resistance of Aluminium Alloy by Reinforcing TiB2& ZrO2 An Investigation to Enhance the Flexural Modulus of the Natural Fibre Composite Using Hemp Fibre Polymer Matrix Experimental Investigation of Mechanical Properties for Borassus Flabellifer and Carica Papaya Fiber Reinforced Polymer Hybrid Composites Investigation on Mechanical Physicochemical Properties of Novel Natural Fiber from Bauhinia Racemosa and its Epoxy Composites Chapter 2: Additive Manufacturing and Welding Characterizing the Microstructure and Performance of Mechanical Properties in Polylactic Acid/Copper Metal Infill Polymer Composites Fabricated through Fused Deposition Modeling Investigation on Mechanical Properties of Bio-PETG Filament in FDM 3D Printing Experimental Investigation on Mechanical Properties and Characteristics of Jute and Hemp Fiber Composites Manufactured by Fusion Deposition Modelling Investigation on the Weldability, Mechanical and Metallurgical Properties of Activated Tig Weldments of Aluminium Alloy 7075.