The CEL Method as an Alternative to the Current Modelling Approaches for Ti6Al4V Orthogonal Cutting Simulation

Ducobu, François; Arrazola, P.J.; Rivière-Lorphèvre, Édouard; Zarate, Gorka Ortiz De; Madariaga, A.; Filippi, Enrico

doi:10.1016/j.procir.2017.03.188

Cited by 56 publications

(30 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It consists of both Eulerian and Lagrangian formulations, where typically the workpiece is modelled with Eulerian formulation and the tool is described by a Lagrangian formulation. The CEL formulation has been successfully adopted in metal cutting simulations by [14,15,20,28] with promising results.…”

Section: Introductionmentioning

confidence: 99%

Development of a simulation model to study tool loads in pcBN when machining AISI 316L

Agmell

Bushlya

Laakso

et al. 2018

Int J Adv Manuf Technol

View full text Add to dashboard Cite

This paper presents the development of a FE-simulation model to predict the mechanical stresses and thermal loads that a cutting tool of polycrystalline cubic boron nitride (pcBN) is subjected to, when machining AISI 316L. The serrated chip formation of AISI 316L has a major impact on the periodic loads acting on the cutting tool. Therefore, it is vital to correctly model this serrated chip formation. One of the major difficulties with FE-simulations of metal cutting is that the extreme deformations in the workpiece material, often leads to a highly distorted mesh. This paper uses the Coupled EulerianLagrangian (CEL) formulation in Abaqus/Explicit, where the workpiece is modelled with the Eulerian formulation and the cutting tool by the Lagrangian one. This CEL formulation enables to completely avoid mesh distortion. To capture the chip serration process, the workpiece material is described with the Johnson-Cook damage model. The FE-simulation results are validated via comparison of the modelled cutting forces, chip serration frequency, and contact length against experimental ones.

show abstract

Section: Introductionmentioning

confidence: 99%

Development of a simulation model to study tool loads in pcBN when machining AISI 316L

Agmell

Bushlya

Laakso

et al. 2018

Int J Adv Manuf Technol

View full text Add to dashboard Cite

show abstract

“…In the Lagrangian approach, as the finite element mesh become distorted under loading, the generation of completely new mesh is necessary, which causes convergence problems and extends the computational time [20]. In turn, in the Eulerian method, the material flows through the mesh without its deformation and the remeshing is not needed [21][22][23]. However, the Eulerian approach has some limitations e.g.…”

Section: The Coupled Eulerian-lagrangian Approachmentioning

confidence: 99%

The Coupled Eulerian-Lagrangian Analysis of the KOBO Extrusion Process

Wójcik¹,

Skrzat²

2021

Adv. Sci. Technol. Res. J.

View full text Add to dashboard Cite

The KOBO extrusion is an unconventional elastic-plastic deformation process in which the phenomenon of changing a path of plastic deformation due to die cyclic oscillations by a given angle and with a given frequency is applied. As the result of the application of the oscillating rotary motion of the die, the reduction of the extrusion force was obtained. The numerical study of the KOBO extrusion of metallic materials was presented in this paper. The three-dimensional coupled Eulerian-Lagrangian (CEL) analysis was applied. The relationship between the extrusion force and the punch displacement during the KOBO process was achieved. The effective plastic strain distribution in the butt was found. The results of the numerical computations were compared with the experimental data. The influence of the material hardening parameters on the cyclic loading phenomena (ratcheting, mean stress relaxation) in terms of the course of the KOBO extrusion was also examined. The proper determination of the material hardening parameters can help to optimize the KOBO process in terms of the reduction the extrusion force and the choice of the amount of die oscillations.

show abstract

“…Moreover, defect formation can be observed in models using CEL formulation [4,12,13]. In a study, a comparison of these two methods was done for orthogonal cutting and it is stated that mesh distortions occur in the ALE model [14].…”

Section: Introductionmentioning

confidence: 99%

Two different finite element models investigation of the plunge stage in joining AZ31B magnesium alloy with friction stir welding

Türkan

Karakaş

2021

SN Appl. Sci.

View full text Add to dashboard Cite

This study presents an investigation of the plunge stage in joining AZ31B magnesium alloy with friction stir welding using two different 3D finite element models based on Arbitrary Lagrangian–Eulerian formulation and Coupled Eulerian–Lagrangian formulation. The investigations are made with the ABAQUS program. Johnson–Cook plastic material law and Coulomb friction law are used in both models. Models are compared in terms of temperature, strain distribution, and processing time. In both models, very similar temperature and strain distributions are obtained in the weld zone and the models are validated by experimental results. In addition, with the increase in the rotational speed of the tool, temperature and strain in the welding zone increase similarly in both models. In the model using the Arbitrary Lagrangian–Eulerian formulation, mesh distortions occur when high mesh density is not created in the plunge zone. No problems related to mesh distortion are encountered in the model using Coupled Eulerian–Lagrangian formulation. Moreover, it is found that the model using the Coupled Eulerian–Lagrangian formulation has a lower processing time and this processing time is not affected by the rotational speed of the tool.

show abstract

The CEL Method as an Alternative to the Current Modelling Approaches for Ti6Al4V Orthogonal Cutting Simulation

Cited by 56 publications

References 28 publications

Development of a simulation model to study tool loads in pcBN when machining AISI 316L

Development of a simulation model to study tool loads in pcBN when machining AISI 316L

The Coupled Eulerian-Lagrangian Analysis of the KOBO Extrusion Process

Two different finite element models investigation of the plunge stage in joining AZ31B magnesium alloy with friction stir welding

Contact Info

Product

Resources

About