Abstract

The production of metal parts via laser powder bed fusion additive manufacturing is growing exponentially. However, the transition of this technology from production of prototypes to production of critical parts is hindered by a lack of confidence in the quality of the part. Confidence can be established via a fundamental understanding of the physics of the process. It is generally accepted that this understanding will be increasingly achieved through modeling and simulation. However, there are significant physics, computational, and materials challenges stemming from the broad range of length and time scales and temperature ranges associated with the process. In this study, we review the current state of the art and describe the challenges that need to be met to achieve the desired fundamental understanding of the physics of the process.

Keywords

FusionProcess (computing)Production (economics)Quality (philosophy)Materials scienceNanotechnologyComputer scienceProcess engineeringStatistical physicsPhysicsEngineering

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Publication Info

Year
2015
Type
article
Volume
2
Issue
4
Pages
041304-041304
Citations
1102
Access
Closed

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Wayne E. King, A. T. Anderson, Robert M. Ferencz et al. (2015). Laser powder bed fusion additive manufacturing of metals; physics, computational, and materials challenges. Applied Physics Reviews , 2 (4) , 041304-041304. https://doi.org/10.1063/1.4937809

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DOI
10.1063/1.4937809