2022
DOI: 10.3390/met12060976
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Identification of the Parameter Values of the Constitutive and Friction Models in Machining Using EGO Algorithm: Application to Ti6Al4V

Abstract: The application of artificial intelligence and increasing high-speed computational performance is still not fully explored in the field of numerical modeling and simulation of machining processes. The efficiency of the numerical model to predict the observables depends on various inputs. The most important and challenging inputs are the material behavior of the work material and the friction conditions during the cutting operation. The parameters of the material model and the friction model have a decisive imp… Show more

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Cited by 7 publications
(2 citation statements)
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“…The Downhill Simplex algorithm was applied to data collected from cutting tests for AISI 1045 to determine the J-C material model parameters that delivered simulation results in good agreement with the process observables such as temperature, cutting force, and chip form [22,23]. The Efficient Global Optimization algorithm (EGO) was applied to correlatively determine the J-C parameters as well as the Coulomb's friction coefficients by minimizing the error between the numerical and experimental results for Ti6Al4V Grade 5 alloy [24].…”
Section: Introductionmentioning
confidence: 99%
“…The Downhill Simplex algorithm was applied to data collected from cutting tests for AISI 1045 to determine the J-C material model parameters that delivered simulation results in good agreement with the process observables such as temperature, cutting force, and chip form [22,23]. The Efficient Global Optimization algorithm (EGO) was applied to correlatively determine the J-C parameters as well as the Coulomb's friction coefficients by minimizing the error between the numerical and experimental results for Ti6Al4V Grade 5 alloy [24].…”
Section: Introductionmentioning
confidence: 99%
“…Ti6Al4V has a low mass ratio, superior bio-absorbability, good anti-corrosive properties, high endurance, and increased fracture resilience [4,5]. While the aerospace sector still prevails in the Ti6Al4V market, other application areas like the automotive, energy, maritime, and chemical-related sectors, load-bearing implants, fixing bone deformities, and other biomedical sectors have seen significant growth over the past 50 years [6][7][8][9]. However, Ti6Al4V poses many challenges during machining due to its high chemical reactivity with cutting tool materials and limited heat conductivity [10,11].…”
Section: Introductionmentioning
confidence: 99%