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

被引:0
作者
SuLi Li
ZhengYing Wei
Jun Du
Guangxi Zhao
Xin Wang
BingHeng Lu
机构
[1] Xi’an Jiaotong University,The State Key Laboratory for Manufacturing Systems Engineering
来源
Applied Physics A | 2016年 / 122卷
关键词
Rapid Prototype; Selective Laser Melting; Vertical Column; Metal Droplet; Molten Droplet;
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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.
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