Effect of stress relaxation on distortion in additive manufacturing process modeling

• Published in: Additive manufacturing Vol. 12; pp. 51 - 59
• Main Authors: Denlinger, Erik R., Michaleris, Pan
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.10.2016
• Subjects: Distortion; FEM; LDED; Residual stress; Distortion; LDED; Residual stress; FEM

A method for modeling the effect of stress relaxation at high temperatures during laser direct energy deposition processes is experimentally validated for Ti-6Al-4V samples subject to different inter-layer dwell times. The predicted mechanical responses are compared to those of Inconel® 625 samples,...