Abstract

Plasma Arc Melting Cold Hearth Remelting (PAMCHR) is an effective recycling and refining process that makes it possible to recycle solid scraps and turnings for aeronautical applications. This study details the thermal modelling of the melting of raw materials in the melting crucible as well as a complete 3D numerical simulation of the thermo-hydrodynamic behaviour of the metal flow in the PAMCHR furnace, based on the CFD software Ansys-Fluent. Simulation results are presented for a pilot furnace. A comparison between calculated and measured pool profiles shows a satisfactory agreement. As the main objective of the PAMCHR process is to remove inclusions from the input material, a Lagrangian calculation of particle trajectories in the liquid metal pool is also performed. The effects of critical parameters such as particle size and density on particle residence time and on elimination of high-density inclusions (HDI) by trapping are evaluated.

Details

Title
A comprehensive numerical modelling of plasma arc melting (PAM) process and simulation of inclusion removal
Author
Ayadh, W 1 ; Kroll-Rabotin, J S 2 ; Bellot, J P 2 ; Marin, R 3 ; Delfosse, J 4 ; Cardon, A 4 ; Biagi, A 5 ; Hans, S 5 

 Institut Jean Lamour - UMR CNRS 7198, LabEx DAMAS, Université de Lorraine, 2 allée André Guinier , Campus Artem, 54000, Nancy, France; IRT M2P, 4 rue Augustin Fresnel, 57070 Metz, France 
 Institut Jean Lamour - UMR CNRS 7198, LabEx DAMAS, Université de Lorraine, 2 allée André Guinier , Campus Artem, 54000, Nancy, France 
 IRT M2P, 4 rue Augustin Fresnel, 57070 Metz, France 
 Safran Tech - Rue des Jeunes Bois, Châteaufort, 78772, Magny-les-Hameaux, France 
 Aubert & Duval Les Ancizes, BP1, 63770, Les Ancizes Cedex, France 
First page
012007
Publication year
2025
Publication date
Jul 2025
Publisher
IOP Publishing
ISSN
17578981
e-ISSN
1757899X
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3245708031
Copyright
Published under licence by IOP Publishing Ltd. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.