A Numerical Study on the Mesoscopic Characteristics of Ti-6Al-4V by Selective Laser Melting.

ABSTRACT: Selective laser melting is a typical powder-bed additive manufacturing technology, for which it is difficult and expensive to observe and measure the molten pool due to its short lifetime and tiny size. This paper introduced a two-stage mesoscopic layer-by-layer simulation framework for the numerical study of the SLM process, where the powder laying and laser scanning are included and conducted alternatively. For the simulation of powder laying, the dynamic behaviors of the particles as well as the particle-particle and particle-scraper interactions are included. For the simulation of laser scanning, a coupled multi-phase and multi-physics system was considered, where the effects of surface tension, Marangoni effect, and vapor recoil are considered, and the behaviors of heat transfer, flui

SUBMITTER: Ao X 

PROVIDER: S-EPMC9025229 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature