Comparison of Several Behaviour Laws Intended to Produce a Realistic Ti6Al4V Chip by Finite Elements Modelling

François Ducobu; Pedro José Arrazola; Edouard Rivière-Lorphèvre; Enrico Filippi

doi:10.4028/www.scientific.net/KEM.651-653.1197

Paper Titles

Uncertainty Management of Cutting Forces Parameters and its Effects on Machining Stability
p.1165

Study of an Industrial FEM Tool for Line Boring Process of Cylinder Blocks
p.1171

Machinability of the EBM Ti6Al4V in Cryogenic Turning
p.1183

Innovations in Descaling and Deburring
p.1189

Comparison of Several Behaviour Laws Intended to Produce a Realistic Ti6Al4V Chip by Finite Elements Modelling
p.1197

Economical Comparison of Cryogenic vs. Traditional Turning of Ti-6Al-4V: A Case Study
p.1204

Cutting Process of Double Angle Drill
p.1211

Application of Optimal Control Problem for Surface Roughness Improvement in Milling
p.1217

Dynamic Recrystallization Observed at the Tool/Chip Interface in Machining
p.1223

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Comparison of Several Behaviour Laws Intended to Produce a Realistic Ti6Al4V Chip by Finite Elements Modelling

Abstract:

The final aim of finite elements modelling is to help in the choice of the cutting parameters and in the comprehension of the involved phenomena. Representing correctly the behaviour of the machined material is hard due to the extreme conditions encountered, although this is a key parameter to develop a realistic model. Four laws are used in this paper to represent the Ti6Al4V. They are all based on the Johnson-Cook law. This study shows that the influence of the behaviour law is high on the chip morphology and on the forces and that the strain softening phenomenon should be taken into account. For the cutting conditions adopted, it is however necessary to add damage properties in the chip to obtain a morphology and a cutting force evolution close to the experimental reference.