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.
Influence of Process Parameters and Deposition Strategy on Laser Metal Deposition of 316L Powder / Mazzucato, Federico; Aversa, Alberta; Doglione, Roberto; Biamino, Sara; Valente, Anna; Lombardi, Mariangela. - In: METALS. - ISSN 2075-4701. - 9:11(2019). [10.3390/met9111160]
Influence of Process Parameters and Deposition Strategy on Laser Metal Deposition of 316L Powder
Alberta Aversa;Roberto Doglione;Sara Biamino;Mariangela Lombardi
2019
Abstract
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.File | Dimensione | Formato | |
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2019_Mazzucato_Influence of Process Parameters and Deposition.pdf
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Descrizione: Influence of Process Parameters and Deposition Strategy on Laser Metal Deposition of 316L Powder
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https://hdl.handle.net/11583/2766012
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