... Friction stir additive manufacturing (FSAM) AA6061 aluminum alloy Hybrid metal matrix composites Graphene reinforcement Eggshell-Derived Bio-Reinforcement Taguchi optimization Manufacturing in engineering and structural applications is ongoing and driven by the demand for lighter-weight...

..., including layer thickness, nozzle temperature and infill density. Tensile tests were performed on all printed samples following industry standards to gauge the mechanical properties such as elastic modulus, ultimate tensile strength, yield strength and breakpoint. Taguchi optimization and variable analysis...