Dans cette étude, l'alliage Ti–6Al–4V a été usiné à sec en configuration de coupe orthogonale. Trois géométries d'outils (0°, 15° et 30°), trois vitesses de coupe (15, 30 et 60 m/min), et trois avances (0,1, 0,2 et 0,3 mm) ont été sélectionnées pour étudier les modes de dégradation des outils coupants. Les résultats montrent que l'effondrement d'arête est le principal mode d'usure des outils ayant un angle de coupe important (30°). L'analyse des paramètres tribologiques (frottement, température, pression de contact) a permis de mettre en évidence l'effet des paramètres d'usinage et de la géométrie d'outil sur les modes de dégradation pendant l'usinage.
In the present study, the titanium alloy ‘Ti–6Al–4V’ is orthogonally machined without cutting fluid. During experiments, the cemented carbide tools were rigidly mounted on the tool holder with rake angles of 0°, 15° and 30°. Three cutting speeds of 15, 30 and 60 m/min and three feeds of 0.1, 0.2, and 0.3 mm were selected. The experimental results show that the tool catastrophic failure occurs just after the first pass of cutting for all cutting parameters when using the tool with a rake angle of 30°. The analysis of the tribological parameters (friction, temperature, contact pressure) shows the effect of the machining parameters and the tool geometry on the damage modes during dry machining.
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Keywords: Damage, Dry machining, Finite Element Analysis, Tribological parameters, Degradation modes
Mohammed Nouari 1 ; Madalina Calamaz 2 ; Franck Girot 2
@article{CRMECA_2008__336_10_772_0,
author = {Mohammed Nouari and Madalina Calamaz and Franck Girot},
title = {M\'ecanismes d'usure des outils coupants en usinage \`a sec de l'alliage de titane a\'eronautique {Ti{\textendash}6Al{\textendash}4V}},
journal = {Comptes Rendus. M\'ecanique},
pages = {772--781},
publisher = {Elsevier},
volume = {336},
number = {10},
year = {2008},
doi = {10.1016/j.crme.2008.07.007},
language = {fr},
}
TY - JOUR AU - Mohammed Nouari AU - Madalina Calamaz AU - Franck Girot TI - Mécanismes d'usure des outils coupants en usinage à sec de l'alliage de titane aéronautique Ti–6Al–4V JO - Comptes Rendus. Mécanique PY - 2008 SP - 772 EP - 781 VL - 336 IS - 10 PB - Elsevier DO - 10.1016/j.crme.2008.07.007 LA - fr ID - CRMECA_2008__336_10_772_0 ER -
%0 Journal Article %A Mohammed Nouari %A Madalina Calamaz %A Franck Girot %T Mécanismes d'usure des outils coupants en usinage à sec de l'alliage de titane aéronautique Ti–6Al–4V %J Comptes Rendus. Mécanique %D 2008 %P 772-781 %V 336 %N 10 %I Elsevier %R 10.1016/j.crme.2008.07.007 %G fr %F CRMECA_2008__336_10_772_0
Mohammed Nouari; Madalina Calamaz; Franck Girot. Mécanismes d'usure des outils coupants en usinage à sec de l'alliage de titane aéronautique Ti–6Al–4V. Comptes Rendus. Mécanique, Volume 336 (2008) no. 10, pp. 772-781. doi : 10.1016/j.crme.2008.07.007. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2008.07.007/
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