Investigation of Metal Alloys Manufactured by Additive Manufacturing

Abstract

Worldwide Selective laser melting is changing the way the manufacturing of a product. newlineSelective laser melting is one of the types of additive manufacturing where to create complex newlinecomponents in a layer-by-layer process. In selective laser melting, process parameters and newlinerapid temperature cycles affect the final quality of the manufactured components. Currently, newlinethere is a lack of understanding of the processing-structure-properties-performance newlinerelationship, particularly related to the microstructure of components. The literature review newlineshows that the process factors Laser Power (P), Exposure Time (T), Border Power (BP), and newlineHatch Spacing (HS) have the biggest effects on mechanical properties. This work investigates newlinethe relationship of process parameters, mechanical properties, surface roughness, and newlinemechanical characteristic for Stainless Steel SS316L, Nickel-based Superalloy 718 and newlineAluminium Alloys AlSi10Mg manufactured through selective laser melting, process. The goal newlineof this research is to improve performance measures by using the Grasshopper Optimization newlineAlgorithm (GOA) technique to optimize the process parameters employed in selective laser newlinemelting. Through a multi-objective approach, the Grasshopper optimization algorithm was newlineemployed to maximize ultimate tensile strength and minimize surface roughness in a single set newlineof experiments. To validate the results Simufact additive manufacturing software was used. newline