Open AccessModeling and Microstructure Analysis of Three-Dimension Direct Writing for Zn-Al Alloy
Author(s) -
W. Rong,
Zhongde Shan,
Jialin Wang,
Yongwei Wang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/769/3/032003
Subject(s) - volume of fluid method , alloy , materials science , dimension (graph theory) , microstructure , track (disk drive) , deposition (geology) , layer (electronics) , nonlinear system , multivariate statistics , phase (matter) , process (computing) , flow (mathematics) , metallurgy , computer science , mechanical engineering , mechanics , composite material , mathematics , geology , engineering , physics , paleontology , quantum mechanics , machine learning , sediment , pure mathematics , operating system
This paper presents a systematic numerical experimental investigation of single-track forming of 3D metal melting direct writing. A forming track width was fitted by multivariate nonlinear regression method, and the numerical model had a fair level of uniformity with the experiment results. Two phase flow model based on volume-of-fluid (VOF) method was adapted to build up the coupled calculative models for direct writing deposition and solidification. The results show that when the forming track width approximately equals to the solidification layer width, it is the optimum time for forming the next layer. Based on the above research, the pre-remelting time was proposed, which is helpful to create next layer forming quality, and could also be used to guide the creation of a proper default of process parameters.