EVALUATION OF MECHANICAL PROPERTIES OF ADDITIVELY MANUFACTURED SS308L WALL COMPONENT

Abstract: In contrast to subtractive manufacturing techniques like machining, additive manufacturing, also known as 3D printing, fast prototyping, or freeform manufacturing, is the process of adding materials to build items from 3D model data, typically layer by layer. The process variations have the greatest impact on the cost, productivity, and quality of additive components. Numerous studies have been conducted on the effects of process variables such as wire feed speed, voltage, and current. The welding process settings have a direct impact on the quality of components made via additive manufacturing. In this study, stainless steel 304L (the substrate) with dimensions of 220 x 140 x 8 mm and stainless steel 308L (the workpiece) with a diameter of 1.2 mm are used to create wall components using a 6-axis robot welding system from YASKAWA. SS308L is frequently utilized in gas pipelines, oil industries, and cryogenic applications. In this study, GMAW and CMT welding techniques are used to create SS308L wall components. The SS308L wall components' mechanical properties were examined. The GMAW and CMT procedures both use fixed parameters. Current, voltage, gas flow rate, wire feed rate, and torch speed are the fixed parameters. The impact strength of wall assemblies created using the CMTAW process is greater than that of GMAW wall assemblies.

Keywords: Wire arc additive manufacturing, 308L stainless steel, mechanical properties