On the effect of scanning strategies in the selective laser melting process

In the selective laser melting process, one has to strike a balance between power and scan speed. When a small scan speed is used, thermal gradients are important and local solidification can lead to cracks. On the other hand, when high speed is used, the power has to be huge and phenomena due to he...

Full description

Saved in:
Bibliographic Details
Published in:Virtual and physical prototyping 2010-06, Vol.5 (2), p.99-109
Main Authors: Jhabvala, Jamasp, Boillat, Eric, Antignac, Thibaud, Glardon, Rémy
Format: Article
Language:English
Subjects:
Agglomeration
balling
High speed
Lasers
Melting
overheating
Prototyping
Scanning
scanning strategies
selective laser melting
Solidification
Strategy
Strikes
thermal gradients
thermal model
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the selective laser melting process, one has to strike a balance between power and scan speed. When a small scan speed is used, thermal gradients are important and local solidification can lead to cracks. On the other hand, when high speed is used, the power has to be huge and phenomena due to heat transfer, like delamination or balling, arise. In this paper, we study different possible scanning strategies and we indicate those that lead to homogeneous heating of the part until its melting point. The results are compared to numerical simulations.
ISSN:1745-2759
1745-2767
DOI:10.1080/17452751003688368