Residual Stresses in Inconel 625 Parts Produced Using Atomic Diffusion Additive Manufacturing (ADAM)

Metal additive manufacturing, also known as metal 3D printing, is a cutting-edge manufacturing process that involves building metal parts layer by layer from a digital 3D model. This paper describes the distribution of residual stress in a 10 mm thick Inconel 625 plate fabricated using Atomic Diffusion Additive Manufacturing (ADAM). This study aims to investigate the effects caused by the ADAM process, focusing on the formation of residual stresses in Inconel 625 3D printed parts. The contour method, a district technique, was employed for measuring residual stresses. This method, although destructive, offers a two-dimensional stress map. The results revealed that the ADAM process produces lower tensile residual stress compared to other metal additive manufacturing methods, making it ideal for applications demanding precise dimensional accuracy and enhanced structural integrity.