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Open AccessArticle

Influence of Process Parameters and Deposition Strategy on Laser Metal Deposition of 316L Powder

1
ARM Laboratory, Institute of Systems and Technologies for Sustainable Production, Department of Innovative Technologies, SUPSI, via Cantonale 2c, 6928 Manno, Switzerland
2
Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
*
Author to whom correspondence should be addressed.
Metals 2019, 9(11), 1160; https://doi.org/10.3390/met9111160
Received: 14 September 2019 / Revised: 23 October 2019 / Accepted: 25 October 2019 / Published: 28 October 2019
In blown powder additive manufacturing technologies the geometrical stability of the built parts is more complex with respect to more conventional powder bed processes. Because of this reason, in order to select the most suitable building parameters, it is important to investigate the shape and the properties of the single metal bead formation and the effect that a scan track has on the nearby ones. In the present study, a methodology to identify an appropriate laser metal deposition process window was introduced, and the effect of the building parameters on the geometry of circular steel samples was investigated. The effect of the scanning strategy on the deposited part was also investigated. This work draws the attention to the importance of the obtainment of the most suitable melt pool shape, demonstrating that the laser power and the scanning strategy have a strong influence not only on the shape but also on the mechanical properties of the final component. View Full-Text
Keywords: additive manufacturing; steel; AISI 316L; scanning strategy; directed energy deposition; melt pool; overlap additive manufacturing; steel; AISI 316L; scanning strategy; directed energy deposition; melt pool; overlap
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MDPI and ACS Style

Mazzucato, F.; Aversa, A.; Doglione, R.; Biamino, S.; Valente, A.; Lombardi, M. Influence of Process Parameters and Deposition Strategy on Laser Metal Deposition of 316L Powder. Metals 2019, 9, 1160.

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