Numerical and experimental investigation of molten metal droplet deposition applied to rapid prototyping

被引：6

作者：

Li, SuLi ^{[1
]}

Wei, ZhengYing ^{[1
]}

Du, Jun ^{[1
]}

Zhao, Guangxi ^{[1
]}

Wang, Xin ^{[1
]}

Lu, BingHeng ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Peoples R China

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2016年 / 122卷 / 08期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

PARTS;

D O I：

10.1007/s00339-016-0264-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rapid prototyping based on molten metal droplets deposition is an additive process in which parts are produced from molten materials in a single operation without the use of any mold or other tooling. Near-net shaped parts are fabricated by sequentially depositing molten droplets layer by layer. This paper presents a systematic numerical and experimental investigation of the transient transport phenomenon during the droplets impinging onto a substrate surface. The 3D models based on a volume of fluid (VOF) method were developed to investigate the deposition of molten metal droplets on a horizontally aluminum substrate surface. Based on the above research, a semiquantitative relationship between external morphology and internal microstructure was proposed, which was further certified by investigating the piled vertical columns and the three-dimensional parts. The works should be helpful for the process optimization and non-destructive detection of drop-based rapid prototyping techniques.

引用

页数：5