Experimental and numerical thermo-mechanical analysis of wire-based laser metal deposition of Al-Mg alloys

• DOI: 10.1016/j.jmapro.2021.02.016
• Publication Date: 2021-02-27T08:23:58Z
• Authors: Frederic E. Bock; Jan Herrnring; Martin Froend; Josephin Enz; Nikolai Kashaev; Benjamin Klusemann
• Keywords: Transient (computer programming); Deposition

A finite element model is employed to perform a sequentially coupled thermo-mechanical analysis for enabling rapid process simulations of temperature fields, residual stresses and distortions the production additively manufactured parts via laser metal deposition. Experimental identification characteristic features such as distribution, melt pool dimensions bead geometries were used initial built-up calibration model. The addition material during simulation realised through reactivating inactive elements transient heat transfer combination quiet mechanical analysis. travelling source geometrically bounded precisely control volume its energy distribution. results are obtaining information on resulting deformation. Based good agreement between numerical experimental thermal analysis, conclusions corresponding stress distributions deformation made. It shown that represents an efficient tool prediction regarding history, final-part deformations. Finally, utilised identify parameters conditions lead reduced deformations investigated additive part.