Thermophysical Properties of Electric Arc Plasma and the Wire Melting Effect with Lanthanum and Sulfur Fluorides Addition in Wire Arc Additive Manufacturing

Achieving a higher quality in wire arc additive manufacturing (WAAM) is a result of the development of welding metallurgy, the development of filler wires, and the control of the thermophysical properties of the electric arc. In this paper, the authors developed composite wires for WAAM with a Ni-La...

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Autores principales:	Sergey G. Parshin, Peter Mayr
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	wire arc additive manufacturing plasma thermodynamic properties electric arc rare earth compounds wire melting droplet transfer Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/e89c8a4336e1446da1dbac050d40d376
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spelling	oai:doaj.org-article:e89c8a4336e1446da1dbac050d40d3762021-11-25T18:21:43ZThermophysical Properties of Electric Arc Plasma and the Wire Melting Effect with Lanthanum and Sulfur Fluorides Addition in Wire Arc Additive Manufacturing10.3390/met111117562075-4701https://doaj.org/article/e89c8a4336e1446da1dbac050d40d3762021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1756https://doaj.org/toc/2075-4701Achieving a higher quality in wire arc additive manufacturing (WAAM) is a result of the development of welding metallurgy, the development of filler wires, and the control of the thermophysical properties of the electric arc. In this paper, the authors developed composite wires for WAAM with a Ni-LaF<sub>3</sub>, Ni-LaB<sub>6</sub> coating. The addition of LaF<sub>3</sub>, LaB<sub>6</sub>, and SF<sub>6</sub> increases specific heat, thermal conductivity, enthalpy, and degree of plasma ionization, which leads to the increase in the transfer of heat from the arc plasma to the wire and to the change in the balance of forces during wire melting. The increase in the Lorentz electromagnetic force and the decrease in the surface tension force made it possible to reduce the droplet diameter and the number of short circuits during wire melting. The change in the thermophysical properties of the plasma and droplet transfer with the addition of LaF<sub>3</sub>, LaB<sub>6</sub>, and SF<sub>6</sub> made it possible to increase the welding current, penetration depth, accuracy of the geometric dimensions of products in WAAM, reduce the wall thickness of products, and refine the microstructure of the weld metal using G3Si1, 316L, AlMg5Mn1Ti, and CuCr0.7 wires.Sergey G. ParshinPeter MayrMDPI AGarticlewire arc additive manufacturingplasma thermodynamic propertieselectric arcrare earth compoundswire meltingdroplet transferMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1756, p 1756 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	wire arc additive manufacturing plasma thermodynamic properties electric arc rare earth compounds wire melting droplet transfer Mining engineering. Metallurgy TN1-997
spellingShingle	wire arc additive manufacturing plasma thermodynamic properties electric arc rare earth compounds wire melting droplet transfer Mining engineering. Metallurgy TN1-997 Sergey G. Parshin Peter Mayr Thermophysical Properties of Electric Arc Plasma and the Wire Melting Effect with Lanthanum and Sulfur Fluorides Addition in Wire Arc Additive Manufacturing
description	Achieving a higher quality in wire arc additive manufacturing (WAAM) is a result of the development of welding metallurgy, the development of filler wires, and the control of the thermophysical properties of the electric arc. In this paper, the authors developed composite wires for WAAM with a Ni-LaF<sub>3</sub>, Ni-LaB<sub>6</sub> coating. The addition of LaF<sub>3</sub>, LaB<sub>6</sub>, and SF<sub>6</sub> increases specific heat, thermal conductivity, enthalpy, and degree of plasma ionization, which leads to the increase in the transfer of heat from the arc plasma to the wire and to the change in the balance of forces during wire melting. The increase in the Lorentz electromagnetic force and the decrease in the surface tension force made it possible to reduce the droplet diameter and the number of short circuits during wire melting. The change in the thermophysical properties of the plasma and droplet transfer with the addition of LaF<sub>3</sub>, LaB<sub>6</sub>, and SF<sub>6</sub> made it possible to increase the welding current, penetration depth, accuracy of the geometric dimensions of products in WAAM, reduce the wall thickness of products, and refine the microstructure of the weld metal using G3Si1, 316L, AlMg5Mn1Ti, and CuCr0.7 wires.
format	article
author	Sergey G. Parshin Peter Mayr
author_facet	Sergey G. Parshin Peter Mayr
author_sort	Sergey G. Parshin
title	Thermophysical Properties of Electric Arc Plasma and the Wire Melting Effect with Lanthanum and Sulfur Fluorides Addition in Wire Arc Additive Manufacturing
title_short	Thermophysical Properties of Electric Arc Plasma and the Wire Melting Effect with Lanthanum and Sulfur Fluorides Addition in Wire Arc Additive Manufacturing
title_full	Thermophysical Properties of Electric Arc Plasma and the Wire Melting Effect with Lanthanum and Sulfur Fluorides Addition in Wire Arc Additive Manufacturing
title_fullStr	Thermophysical Properties of Electric Arc Plasma and the Wire Melting Effect with Lanthanum and Sulfur Fluorides Addition in Wire Arc Additive Manufacturing
title_full_unstemmed	Thermophysical Properties of Electric Arc Plasma and the Wire Melting Effect with Lanthanum and Sulfur Fluorides Addition in Wire Arc Additive Manufacturing
title_sort	thermophysical properties of electric arc plasma and the wire melting effect with lanthanum and sulfur fluorides addition in wire arc additive manufacturing
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e89c8a4336e1446da1dbac050d40d376
work_keys_str_mv	AT sergeygparshin thermophysicalpropertiesofelectricarcplasmaandthewiremeltingeffectwithlanthanumandsulfurfluoridesadditioninwirearcadditivemanufacturing AT petermayr thermophysicalpropertiesofelectricarcplasmaandthewiremeltingeffectwithlanthanumandsulfurfluoridesadditioninwirearcadditivemanufacturing
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Thermophysical Properties of Electric Arc Plasma and the Wire Melting Effect with Lanthanum and Sulfur Fluorides Addition in Wire Arc Additive Manufacturing

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