Article (Scientific journals)
Sensitivity Analysis in the Modelling of a High Speed Steel Thin-Wall Produced by Directed Energy Deposition
Jardin Tome, Ruben; Tuninetti, Victor; Tchuindjang, Jérôme Tchoufack et al.
2020In Metals, 10 (2020), p. 1554
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Keywords :
DED additive process; thin-wall deposit experiment; finite element simulation; thermomechanical model;; M4 steel
Abstract :
[en] This paper reports the sensitivity of the thermal and the displacement histories predicted by a finite element analysis to material properties and boundary conditions of a directed-energy deposition of a M4 high speed steel thin-wall part additively manufactured on a 42CrMo4 steel substrate. The model accuracy was assessed by comparing the simulation results with the experimental measurements such as evolving local temperatures and distortion of the substrate. The numerical results of thermal history were successfully correlated with the solidified microstructures measured by scanning electron microscope technique, explaining the non-uniform, cellular-type grains depending on the deposit layers. Laser power, thermal conductivity, and thermal capacity of deposit and substrate were considered in the sensitivity analysis in order to quantify the e ect of their variations on the local thermal history, while Young’s modulus and yield stress variation e ects were evaluated on the distortion response of the sample. The laser power showed the highest impact on the thermal history, then came the thermal capacity, then the conductivity. Considering distortion, variations of the Young’s modulus had a higher impact than the yield stress.
Disciplines :
Materials science & engineering
Author, co-author :
Jardin Tome, Ruben;  Université de Liège - ULiège
Tuninetti, Victor;  Ufrontera
Tchuindjang, Jérôme Tchoufack  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Metallic materials for additive manufacturing
Hashemi, Seyedeh Neda ;  -
Carrus, Raoul
Mertens, Anne  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Metallic materials for additive manufacturing
Duchene, Laurent  ;  Université de Liège - ULiège > Département ArGEnCo > Analyse multi-échelles des matériaux et struct. du gén. civ.
Tran, Hoang Son ;  Université de Liège - ULiège > Département ArGEnCo > Département Argenco : Secteur MS2F
Habraken, Anne  ;  Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Language :
English
Title :
Sensitivity Analysis in the Modelling of a High Speed Steel Thin-Wall Produced by Directed Energy Deposition
Alternative titles :
[fr] Analyse de sensibilité du modèle du dépôt DED d'un mur fin en acier à haute vitesse M4
Publication date :
22 November 2020
Journal title :
Metals
eISSN :
2075-4701
Publisher :
Multidisciplinary Digital Publishing Institute (MDPI), Basel, Switzerland
Special issue title :
Numerical and Experimental Advances in Innovative Manufacturing Processes
Volume :
10
Issue :
2020
Pages :
1554
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
PDR Lasercladding
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 24 February 2021

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