The Formation of Saw Toothed Chip in a Titanium Alloy: Influence of Constitutive Models

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ALVAREZ, Roberto ;DOMINGO, Rosario ;SEBASTIAN, Miguel Angel .
The Formation of Saw Toothed Chip in a Titanium Alloy: Influence of Constitutive Models. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 57, n.10, p. 739-749, june 2018. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/the-formation-of-saw-toothed-chip-in-a-titanium-alloy-influence-of-constitutive-models/>. Date accessed: 29 sep. 2021. 
doi:http://dx.doi.org/10.5545/sv-jme.2011.106.
Alvarez, R., Domingo, R., & Sebastian, M.
(2011).
The Formation of Saw Toothed Chip in a Titanium Alloy: Influence of Constitutive Models.
Strojniški vestnik - Journal of Mechanical Engineering, 57(10), 739-749.
doi:http://dx.doi.org/10.5545/sv-jme.2011.106
@article{sv-jmesv-jme.2011.106,
	author = {Roberto  Alvarez and Rosario  Domingo and Miguel Angel  Sebastian},
	title = {The Formation of Saw Toothed Chip in a Titanium Alloy: Influence of Constitutive Models},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {57},
	number = {10},
	year = {2011},
	keywords = {machining; orthogonal cutting; Ti6Al4V; FEM; chip morphology; constitutive models},
	abstract = {This work analyses the effect of eight constitutive models on the saw-toothed chip formation in Ti6Al4V orthogonal cutting, by means of the finite element (FE) simulation and experimental contrast, in dry and with conventional emulsion coolant, mixed with water at 7%. The models are focused in Johnson-Cook equations with four different sets of constant parameters, El-Magd-Treppmann modified and three Zerilli-Armstrong models based on the behavior of different crystal structures (body-centered-cubic – BCC, hexagonal-close-packed – HCP and modified HPC model). The flow stress model of Ti6Al4V at high strain rates and temperatures has been analysed using a 2-D FE model through constitutive equations and three friction coefficients (0.4, 0.6 and 0.8). A critical comparison of outstanding process outputs as cutting force, temperature – on rake face and measurable parameters for segmented chip (the peak tooth height, the valley tooth height and the tooth width, chip compression ratio, and chip deformation) is carried out. The application of different constitutive models has proved a strong influence on the results. Zerilli-Armstrong models, for BCC and HCP structures, have achieved the best fitting in machining with and without coolant respectively, for a friction coefficient of 0.8, getting for cutting force, temperatures, peak tooth height and chip deformation, deviation lower than 2%. The chip compression ratio has reached 4.7% and 7% for BCC and HCP respectively. Only the valley tooth height and the tooth width show some limitations.},
	issn = {0039-2480},	pages = {739-749},	doi = {10.5545/sv-jme.2011.106},
	url = {https://www.sv-jme.eu/article/the-formation-of-saw-toothed-chip-in-a-titanium-alloy-influence-of-constitutive-models/}
}
Alvarez, R.,Domingo, R.,Sebastian, M.
2011 June 57. The Formation of Saw Toothed Chip in a Titanium Alloy: Influence of Constitutive Models. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 57:10
%A Alvarez, Roberto 
%A Domingo, Rosario 
%A Sebastian, Miguel Angel 
%D 2011
%T The Formation of Saw Toothed Chip in a Titanium Alloy: Influence of Constitutive Models
%B 2011
%9 machining; orthogonal cutting; Ti6Al4V; FEM; chip morphology; constitutive models
%! The Formation of Saw Toothed Chip in a Titanium Alloy: Influence of Constitutive Models
%K machining; orthogonal cutting; Ti6Al4V; FEM; chip morphology; constitutive models
%X This work analyses the effect of eight constitutive models on the saw-toothed chip formation in Ti6Al4V orthogonal cutting, by means of the finite element (FE) simulation and experimental contrast, in dry and with conventional emulsion coolant, mixed with water at 7%. The models are focused in Johnson-Cook equations with four different sets of constant parameters, El-Magd-Treppmann modified and three Zerilli-Armstrong models based on the behavior of different crystal structures (body-centered-cubic – BCC, hexagonal-close-packed – HCP and modified HPC model). The flow stress model of Ti6Al4V at high strain rates and temperatures has been analysed using a 2-D FE model through constitutive equations and three friction coefficients (0.4, 0.6 and 0.8). A critical comparison of outstanding process outputs as cutting force, temperature – on rake face and measurable parameters for segmented chip (the peak tooth height, the valley tooth height and the tooth width, chip compression ratio, and chip deformation) is carried out. The application of different constitutive models has proved a strong influence on the results. Zerilli-Armstrong models, for BCC and HCP structures, have achieved the best fitting in machining with and without coolant respectively, for a friction coefficient of 0.8, getting for cutting force, temperatures, peak tooth height and chip deformation, deviation lower than 2%. The chip compression ratio has reached 4.7% and 7% for BCC and HCP respectively. Only the valley tooth height and the tooth width show some limitations.
%U https://www.sv-jme.eu/article/the-formation-of-saw-toothed-chip-in-a-titanium-alloy-influence-of-constitutive-models/
%0 Journal Article
%R 10.5545/sv-jme.2011.106
%& 739
%P 11
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 57
%N 10
%@ 0039-2480
%8 2018-06-29
%7 2018-06-29
Alvarez, Roberto, Rosario  Domingo, & Miguel Angel  Sebastian.
"The Formation of Saw Toothed Chip in a Titanium Alloy: Influence of Constitutive Models." Strojniški vestnik - Journal of Mechanical Engineering [Online], 57.10 (2011): 739-749. Web.  29 Sep. 2021
TY  - JOUR
AU  - Alvarez, Roberto 
AU  - Domingo, Rosario 
AU  - Sebastian, Miguel Angel 
PY  - 2011
TI  - The Formation of Saw Toothed Chip in a Titanium Alloy: Influence of Constitutive Models
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2011.106
KW  - machining; orthogonal cutting; Ti6Al4V; FEM; chip morphology; constitutive models
N2  - This work analyses the effect of eight constitutive models on the saw-toothed chip formation in Ti6Al4V orthogonal cutting, by means of the finite element (FE) simulation and experimental contrast, in dry and with conventional emulsion coolant, mixed with water at 7%. The models are focused in Johnson-Cook equations with four different sets of constant parameters, El-Magd-Treppmann modified and three Zerilli-Armstrong models based on the behavior of different crystal structures (body-centered-cubic – BCC, hexagonal-close-packed – HCP and modified HPC model). The flow stress model of Ti6Al4V at high strain rates and temperatures has been analysed using a 2-D FE model through constitutive equations and three friction coefficients (0.4, 0.6 and 0.8). A critical comparison of outstanding process outputs as cutting force, temperature – on rake face and measurable parameters for segmented chip (the peak tooth height, the valley tooth height and the tooth width, chip compression ratio, and chip deformation) is carried out. The application of different constitutive models has proved a strong influence on the results. Zerilli-Armstrong models, for BCC and HCP structures, have achieved the best fitting in machining with and without coolant respectively, for a friction coefficient of 0.8, getting for cutting force, temperatures, peak tooth height and chip deformation, deviation lower than 2%. The chip compression ratio has reached 4.7% and 7% for BCC and HCP respectively. Only the valley tooth height and the tooth width show some limitations.
UR  - https://www.sv-jme.eu/article/the-formation-of-saw-toothed-chip-in-a-titanium-alloy-influence-of-constitutive-models/
@article{{sv-jme}{sv-jme.2011.106},
	author = {Alvarez, R., Domingo, R., Sebastian, M.},
	title = {The Formation of Saw Toothed Chip in a Titanium Alloy: Influence of Constitutive Models},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {57},
	number = {10},
	year = {2011},
	doi = {10.5545/sv-jme.2011.106},
	url = {https://www.sv-jme.eu/article/the-formation-of-saw-toothed-chip-in-a-titanium-alloy-influence-of-constitutive-models/}
}
TY  - JOUR
AU  - Alvarez, Roberto 
AU  - Domingo, Rosario 
AU  - Sebastian, Miguel Angel 
PY  - 2018/06/29
TI  - The Formation of Saw Toothed Chip in a Titanium Alloy: Influence of Constitutive Models
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 57, No 10 (2011): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2011.106
KW  - machining, orthogonal cutting, Ti6Al4V, FEM, chip morphology, constitutive models
N2  - This work analyses the effect of eight constitutive models on the saw-toothed chip formation in Ti6Al4V orthogonal cutting, by means of the finite element (FE) simulation and experimental contrast, in dry and with conventional emulsion coolant, mixed with water at 7%. The models are focused in Johnson-Cook equations with four different sets of constant parameters, El-Magd-Treppmann modified and three Zerilli-Armstrong models based on the behavior of different crystal structures (body-centered-cubic – BCC, hexagonal-close-packed – HCP and modified HPC model). The flow stress model of Ti6Al4V at high strain rates and temperatures has been analysed using a 2-D FE model through constitutive equations and three friction coefficients (0.4, 0.6 and 0.8). A critical comparison of outstanding process outputs as cutting force, temperature – on rake face and measurable parameters for segmented chip (the peak tooth height, the valley tooth height and the tooth width, chip compression ratio, and chip deformation) is carried out. The application of different constitutive models has proved a strong influence on the results. Zerilli-Armstrong models, for BCC and HCP structures, have achieved the best fitting in machining with and without coolant respectively, for a friction coefficient of 0.8, getting for cutting force, temperatures, peak tooth height and chip deformation, deviation lower than 2%. The chip compression ratio has reached 4.7% and 7% for BCC and HCP respectively. Only the valley tooth height and the tooth width show some limitations.
UR  - https://www.sv-jme.eu/article/the-formation-of-saw-toothed-chip-in-a-titanium-alloy-influence-of-constitutive-models/
Alvarez, Roberto, Domingo, Rosario, AND Sebastian, Miguel Angel.
"The Formation of Saw Toothed Chip in a Titanium Alloy: Influence of Constitutive Models" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 57 Number 10 (29 June 2018)

Authors

Affiliations

  • Universidad Nebrija, Department of Industrial Engineering, Spain 1
  • UNED, Department of Manufacturing Engineering, Spain 2

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 57(2011)10, 739-749

https://doi.org/10.5545/sv-jme.2011.106

This work analyses the effect of eight constitutive models on the saw-toothed chip formation in Ti6Al4V orthogonal cutting, by means of the finite element (FE) simulation and experimental contrast, in dry and with conventional emulsion coolant, mixed with water at 7%. The models are focused in Johnson-Cook equations with four different sets of constant parameters, El-Magd-Treppmann modified and three Zerilli-Armstrong models based on the behavior of different crystal structures (body-centered-cubic – BCC, hexagonal-close-packed – HCP and modified HPC model). The flow stress model of Ti6Al4V at high strain rates and temperatures has been analysed using a 2-D FE model through constitutive equations and three friction coefficients (0.4, 0.6 and 0.8). A critical comparison of outstanding process outputs as cutting force, temperature – on rake face and measurable parameters for segmented chip (the peak tooth height, the valley tooth height and the tooth width, chip compression ratio, and chip deformation) is carried out. The application of different constitutive models has proved a strong influence on the results. Zerilli-Armstrong models, for BCC and HCP structures, have achieved the best fitting in machining with and without coolant respectively, for a friction coefficient of 0.8, getting for cutting force, temperatures, peak tooth height and chip deformation, deviation lower than 2%. The chip compression ratio has reached 4.7% and 7% for BCC and HCP respectively. Only the valley tooth height and the tooth width show some limitations.

machining; orthogonal cutting; Ti6Al4V; FEM; chip morphology; constitutive models