{"id":7470,"date":"2022-09-06T14:11:26","date_gmt":"2022-09-06T14:11:26","guid":{"rendered":"https:\/\/hdcmfg.com\/?p=7470"},"modified":"2026-03-05T06:39:58","modified_gmt":"2026-03-05T06:39:58","slug":"usinage-du-titane-grade-2","status":"publish","type":"post","link":"https:\/\/hdcmfg.com\/fr\/blogs\/titanium-grade-2-machining\/","title":{"rendered":"Titane Grade 2\u00a0: composition, propri\u00e9t\u00e9s et d\u00e9fis de traitement"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/hdcmfg.com\/wp-content\/uploads\/2022\/09\/Titanium-Grade-2.png\" alt=\"titane grade 2\" width=\"800\" height=\"800\" \/><\/p>\n<h2>Aper\u00e7u<\/h2>\n<p>HDC Manufacturing poss\u00e8de plus de dix ans d&#039;exp\u00e9rience dans le domaine des composants m\u00e9talliques sur mesure. Nous disposons de machines de pr\u00e9cision \u00e0 4 axes et <a href=\"https:\/\/hdcmfg.com\/fr\/usinage-cnc-5-axes\/\">5 axes<\/a> des machines-outils, des centres d&#039;usinage CNC automatis\u00e9s et une \u00e9quipe de conception et de production professionnelle. Nous pouvons vous proposer diff\u00e9rents proc\u00e9d\u00e9s d&#039;usinage, notamment <a href=\"https:\/\/hdcmfg.com\/fr\/service-de-fraisage-cnc-2-3\/\">Fraisage CNC<\/a>, <a href=\"https:\/\/hdcmfg.com\/fr\/service-de-tournage-cnc-2\/\">Tournage CNC<\/a>, <a href=\"https:\/\/hdcmfg.com\/fr\/service-de-decoupe-laser\/\">d\u00e9coupe au laser<\/a>, <a href=\"https:\/\/hdcmfg.com\/fr\/moulage-sous-pression-en-metal\/\">moulage de m\u00e9tal<\/a>, et bien plus encore, pour fabriquer vos composants en titane grade 2 \u00e0 la perfection, adapt\u00e9s \u00e0 vos besoins sp\u00e9cifiques.<\/p>\n<h2>Qu&#039;est-ce que le titane de grade 2\u00a0?<\/h2>\n<p>Le titane grade 2 est du titane non alli\u00e9. Cela ressemble particuli\u00e8rement \u00e0 <a href=\"https:\/\/hdcmfg.com\/fr\/usinage-du-titane-grade-1\/\">Titane Grade 1<\/a>. Les gens l\u2019appellent la \u00ab main-d\u2019\u0153uvre \u00bb du titane pur industriel. Compar\u00e9 au grade 1, il pr\u00e9sente une r\u00e9sistance sup\u00e9rieure et des performances de formage \u00e0 froid exceptionnelles. C&#039;est le premier choix dans de nombreux domaines d&#039;application, tels que l&#039;industrie a\u00e9rospatiale, la production d&#039;\u00e9lectricit\u00e9, l&#039;usinage chimique, etc.<img decoding=\"async\" src=\"https:\/\/hdcmfg.com\/wp-content\/uploads\/2024\/02\/Titanium-Grade-2-1.webp\" alt=\"titane grade 2 1\" width=\"1000\" height=\"500\" \/><\/p>\n<h2>La diff\u00e9rence entre le titane grade 1 et grade 2<\/h2>\n<p>Les titanes de grade 1 et 2 sont globalement identiques, mais le grade 1 pr\u00e9sente g\u00e9n\u00e9ralement une teneur en oxyg\u00e8ne l\u00e9g\u00e8rement sup\u00e9rieure, ce qui lui conf\u00e8re des propri\u00e9t\u00e9s l\u00e9g\u00e8rement diff\u00e9rentes. Le titane de grade 1, avec sa plus faible teneur en oxyg\u00e8ne, offre une ductilit\u00e9 et une formabilit\u00e9 l\u00e9g\u00e8rement sup\u00e9rieures, tandis que le titane de grade 2, gr\u00e2ce \u00e0 sa teneur en oxyg\u00e8ne l\u00e9g\u00e8rement plus \u00e9lev\u00e9e, pr\u00e9sente une r\u00e9sistance l\u00e9g\u00e8rement sup\u00e9rieure. Le grade 1 offre une meilleure ductilit\u00e9 et une meilleure soudabilit\u00e9, ainsi qu&#039;un avantage en termes de traitement chimique\u00a0; le grade 2, quant \u00e0 lui, offre une meilleure r\u00e9sistance et est privil\u00e9gi\u00e9 dans les secteurs de l&#039;a\u00e9rospatiale, du m\u00e9dical et de l&#039;automobile. En r\u00e9sum\u00e9, le choix entre les deux qualit\u00e9s d\u00e9pend de l&#039;application pr\u00e9cise, de la formabilit\u00e9, de la r\u00e9sistance \u00e0 la traction et des autres performances m\u00e9caniques.<img decoding=\"async\" src=\"https:\/\/hdcmfg.com\/wp-content\/uploads\/2024\/02\/Titanium-Grade-2-2.webp\" alt=\"titane grade 2 2\" width=\"1000\" height=\"500\" \/><\/p>\n<h2>Quels sont les inconv\u00e9nients du titane grade 2 ?<\/h2>\n<p>Bien que le titane de grade 2 puisse \u00eatre consid\u00e9r\u00e9 \u00e0 bien des \u00e9gards comme un meilleur choix, il pr\u00e9sente n\u00e9anmoins des inconv\u00e9nients. Il est consid\u00e9rablement moins r\u00e9sistant que les alliages de titane de grade 5, ce qui limite son utilisation dans les applications exigeant un rapport r\u00e9sistance\/poids \u00e9lev\u00e9. De plus, son co\u00fbt peut \u00eatre sup\u00e9rieur \u00e0 celui d&#039;autres mat\u00e9riaux tels que l&#039;acier inoxydable ou l&#039;aluminium, ce qui peut impacter le budget de construction. Par ailleurs, le titane de grade 2 peut \u00eatre difficile \u00e0 usiner en raison de sa conductivit\u00e9 thermique et de son potentiel d&#039;\u00e9crouissage, entra\u00eenant une usure importante des outils et des co\u00fbts d&#039;usinage \u00e9lev\u00e9s. De plus, bien que soudable, il n\u00e9cessite des proc\u00e9d\u00e9s de soudage rigoureux afin d&#039;\u00e9viter la fragilisation ou la contamination, qui peuvent \u00e0 terme alt\u00e9rer ses propri\u00e9t\u00e9s m\u00e9caniques et sa r\u00e9sistance \u00e0 la corrosion. Enfin, sa formabilit\u00e9 \u00e0 froid est assez limit\u00e9e, ce qui rend le formage \u00e0 froid et la mise en forme difficiles et augmente le risque de fissuration, fragilisant ainsi le mat\u00e9riau. Malgr\u00e9 la qualit\u00e9 des joints obtenus, le titane de grade 2 pr\u00e9sente certaines limitations\u00a0; il reste n\u00e9anmoins tr\u00e8s performant en termes de r\u00e9sistance \u00e0 la corrosion, de biocompatibilit\u00e9 et de l\u00e9g\u00e8ret\u00e9 dans de nombreuses applications.<img decoding=\"async\" src=\"https:\/\/hdcmfg.com\/wp-content\/uploads\/2024\/02\/Titanium-Grade-2-3.webp\" alt=\"titane grade 2 3\" width=\"1000\" height=\"500\" \/><\/p>\n<h2>Composition chimique du titane grade 2<\/h2>\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><b>\u00c9l\u00e9ment chimique<\/b><\/td>\n<td style=\"text-align: center;\"><b>Contenu (%)<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Titane, Ti<\/td>\n<td style=\"text-align: center;\">\u2265 98,9<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Fer, Fe<\/td>\n<td style=\"text-align: center;\">0- 0.30<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Oxyg\u00e8ne, O<\/td>\n<td style=\"text-align: center;\">0-0.25<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Carbone, C<\/td>\n<td style=\"text-align: center;\">0-0.08<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Azote, N<\/td>\n<td style=\"text-align: center;\">0-0.03<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Hydrog\u00e8ne, H<\/td>\n<td style=\"text-align: center;\">0- 0.015<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>L&#039;influence d&#039;une teneur moindre en d&#039;autres \u00e9l\u00e9ments sur le titane de grade 2<img decoding=\"async\" src=\"https:\/\/hdcmfg.com\/wp-content\/uploads\/2024\/02\/Titanium-Grade-2-4.webp\" alt=\"titane grade 2 4\" width=\"1000\" height=\"500\" \/><\/h2>\n<p>(De faibles quantit\u00e9s d&#039;autres \u00e9l\u00e9ments n&#039;ont qu&#039;une l\u00e9g\u00e8re incidence sur le titane de grade 2), car ce dernier est un alliage de titane pur commercial dont le composant principal est le titane, auquel s&#039;ajoutent de faibles quantit\u00e9s d&#039;autres \u00e9l\u00e9ments tels que l&#039;oxyg\u00e8ne, l&#039;azote, l&#039;hydrog\u00e8ne, le carbone et le fer. Le Ti-6Al-4V est compos\u00e9 de ces \u00e9l\u00e9ments en tr\u00e8s faible concentration et n&#039;a donc aucun effet notable sur les propri\u00e9t\u00e9s globales du titane de grade 2. Cependant, ce m\u00e9tal n&#039;est pas pur et contient des \u00e9l\u00e9ments \u00e9trangers susceptibles d&#039;affecter n\u00e9gativement ses propri\u00e9t\u00e9s m\u00e9caniques, notamment sa r\u00e9sistance, sa ductilit\u00e9 et sa r\u00e9sistance \u00e0 la corrosion. Par cons\u00e9quent, le contr\u00f4le qualit\u00e9 des impuret\u00e9s et des \u00e9l\u00e9ments d&#039;alliage est fondamental pour garantir un titane de grade 2 de haute puret\u00e9 et aux propri\u00e9t\u00e9s sp\u00e9cifiques recherch\u00e9es. Il convient de noter que le titane de grade 2 est g\u00e9n\u00e9ralement choisi pour son excellente r\u00e9sistance \u00e0 la corrosion, sa biocompatibilit\u00e9 et sa faible densit\u00e9, ce qui explique ses applications dans divers secteurs industriels tels que l&#039;a\u00e9rospatiale, la pharmacie et la chimie.<\/p>\n<h2>Propri\u00e9t\u00e9s m\u00e9caniques du titane grade 2<\/h2>\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><b>Propri\u00e9t\u00e9s<\/b><\/td>\n<td style=\"text-align: center;\"><b>M\u00e9trique<\/b><\/td>\n<td style=\"text-align: center;\"><b>Imp\u00e9rial<\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">R\u00e9sistance \u00e0 la traction<\/td>\n<td style=\"text-align: center;\">485 MPa<\/td>\n<td style=\"text-align: center;\">70300 psi<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Limite d&#039;\u00e9lasticit\u00e9<\/td>\n<td style=\"text-align: center;\">345 MPa<\/td>\n<td style=\"text-align: center;\">50000 psi<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Coefficient de Poisson<\/td>\n<td style=\"text-align: center;\">0.34-0.40<\/td>\n<td style=\"text-align: center;\">0.34-0.40<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Module d&#039;\u00e9lasticit\u00e9<\/td>\n<td style=\"text-align: center;\">105 \u2013 120 GPa<\/td>\n<td style=\"text-align: center;\">15200 \u2013 17400 ksi<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Allongement \u00e0 la rupture<\/td>\n<td style=\"text-align: center;\">28%<\/td>\n<td style=\"text-align: center;\">28%<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Duret\u00e9 (HV)<\/td>\n<td style=\"text-align: center;\">160-200<\/td>\n<td style=\"text-align: center;\">160-200<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img decoding=\"async\" src=\"https:\/\/hdcmfg.com\/wp-content\/uploads\/2024\/02\/Titanium-Grade-2-5.webp\" alt=\"titane grade 2 5\" width=\"1000\" height=\"500\" \/><\/p>\n<h2>Propri\u00e9t\u00e9s physiques du titane grade 2<\/h2>\n<table>\n<tbody>\n<tr>\n<td style=\"text-align: center;\"><strong>Densit\u00e9<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>B\u00eata Transus<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Point de fusion<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Conductivit\u00e9 thermique<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>R\u00e9sistance \u00e9lastique<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">4.51g\/cm\u00b3<\/td>\n<td style=\"text-align: center;\">915 \u00b0C<\/td>\n<td style=\"text-align: center;\">1660 \u00b0C<\/td>\n<td style=\"text-align: center;\">21,79 W\u00b7m-1 \u00b0C-1<\/td>\n<td style=\"text-align: center;\">0,53 \u00b5\u03a9\/m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Propri\u00e9t\u00e9s thermiques du titane grade 2<img decoding=\"async\" src=\"https:\/\/hdcmfg.com\/wp-content\/uploads\/2024\/02\/Titanium-Grade-2-6.webp\" alt=\"titane grade 2 6\" width=\"1000\" height=\"500\" \/><\/h2>\n<table width=\"753\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"251\">\u00a0<strong>Propri\u00e9t\u00e9s thermiques<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"251\"><strong>M\u00e9trique<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"251\"><strong>Anglais<\/strong><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Temp\u00e9rature de fusion<\/td>\n<td style=\"text-align: center;\">325 J\/g<\/td>\n<td style=\"text-align: center;\">140 BTU\/lb<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" rowspan=\"3\">CTE, lin\u00e9aire<\/td>\n<td style=\"text-align: center;\" width=\"251\">8,60 \u00b5m\/m-\u00b0C<br \/>\n@Temp\u00e9rature 0,000 \u2013 100 \u00b0C<\/td>\n<td style=\"text-align: center;\" width=\"251\">4,78 \u00b5po\/po-\u00b0F<br \/>\n@Temp\u00e9rature 32,0 \u2013 212 \u00b0F<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"251\">9,20 \u00b5m\/m-\u00b0C<br \/>\n@Temp\u00e9rature 0,000 \u2013 315 \u00b0C<\/td>\n<td style=\"text-align: center;\" width=\"251\">5,11 \u00b5in\/in-\u00b0F<br \/>\n@Temp\u00e9rature 32,0 \u2013 599 \u00b0F<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"251\">9,70 \u00b5m\/m-\u00b0C<br \/>\n@Temp\u00e9rature 0,000 \u2013 540 \u00b0C<\/td>\n<td style=\"text-align: center;\" width=\"251\">5,39 \u00b5in\/in-\u00b0F<br \/>\n@Temp\u00e9rature 32,0 \u2013 1000 \u00b0F<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" rowspan=\"5\">La capacit\u00e9 thermique sp\u00e9cifique<\/td>\n<td style=\"text-align: center;\" width=\"251\">0,523 J\/g-\u00b0C<br \/>\n@Temp\u00e9rature 20,0 \u00b0C<\/td>\n<td style=\"text-align: center;\" width=\"251\">0,125 BTU\/lb-\u00b0F<br \/>\n@Temp\u00e9rature 68,0 \u00b0F<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"251\">0,560 J\/g-\u00b0C<br \/>\n@Temp\u00e9rature 200 \u00b0C<\/td>\n<td style=\"text-align: center;\" width=\"251\">0,134 BTU\/lb-\u00b0F<br \/>\n@Temp\u00e9rature 392 \u00b0F<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"251\">0,620 J\/g-\u00b0C<br \/>\n@Temp\u00e9rature 400 \u00b0C<\/td>\n<td style=\"text-align: center;\" width=\"251\">0,148 BTU\/lb-\u00b0F<br \/>\n@Temp\u00e9rature 752 \u00b0F<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"251\">0,670 J\/g-\u00b0C<br \/>\n@Temp\u00e9rature 540 \u00b0C<\/td>\n<td style=\"text-align: center;\" width=\"251\">0,160 BTU\/lb-\u00b0F<br \/>\n@Temp\u00e9rature 1000 \u00b0F<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"251\">0,690 J\/g-\u00b0C<br \/>\n@Temp\u00e9rature 600 \u00b0C<\/td>\n<td style=\"text-align: center;\" width=\"251\">0,165 BTU\/lb-\u00b0F<br \/>\n@Temp\u00e9rature 1110 \u00b0F<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Conductivit\u00e9 thermique<\/td>\n<td style=\"text-align: center;\">16,4 W\/mK<\/td>\n<td style=\"text-align: center;\">114 BTU-po\/h-pi\u00b2-\u00b0F<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Point de fusion<\/td>\n<td style=\"text-align: center;\">&lt;= 1665 \u00b0C<\/td>\n<td style=\"text-align: center;\">&lt;= 3029 \u00b0F<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Liquide<\/td>\n<td style=\"text-align: center;\">1665 \u00b0C<\/td>\n<td style=\"text-align: center;\">3029 \u00b0F<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">B\u00eata Transus<\/td>\n<td style=\"text-align: center;\">913 \u00b0C<\/td>\n<td style=\"text-align: center;\">1680 \u00b0F<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>M\u00e9thodes adapt\u00e9es au traitement du titane de grade 2<img decoding=\"async\" src=\"https:\/\/hdcmfg.com\/wp-content\/uploads\/2024\/02\/Titanium-Grade-2-7.webp\" alt=\"titane grade 2 7\" width=\"1000\" height=\"500\" \/><\/h2>\n<p>La transformation du titane de grade 2 fait appel \u00e0 un ensemble de techniques adapt\u00e9es \u00e0 ses caract\u00e9ristiques. L&#039;usinage (tournage et fraisage) est courant, mais sa mise en \u0153uvre est longue en raison de la faible conductivit\u00e9 thermique du mat\u00e9riau. Seules les techniques de soudage telles que le GTAW ou l&#039;EBW pr\u00e9sentent des risques de contamination et d&#039;oxydation, ce qui exige des pr\u00e9cautions. Des proc\u00e9d\u00e9s de formage \u00e0 chaud et \u00e0 froid peuvent \u00eatre utilis\u00e9s\u00a0; un recuit suppl\u00e9mentaire peut s&#039;av\u00e9rer n\u00e9cessaire pour obtenir la ductilit\u00e9 souhait\u00e9e. Des traitements thermiques (recuit et relaxation des contraintes) permettent d&#039;obtenir les propri\u00e9t\u00e9s m\u00e9caniques recherch\u00e9es. Les modifications de surface, comme le polissage et l&#039;anodisation, am\u00e9liorent la r\u00e9sistance \u00e0 la corrosion et l&#039;aspect. En revanche, les techniques d&#039;usinage telles que la fusion s\u00e9lective par laser (SLM) et la fusion par faisceau d&#039;\u00e9lectrons (EBM) offrent une grande flexibilit\u00e9 pour la fabrication de structures aux g\u00e9om\u00e9tries complexes. Ces m\u00e9thodes sont g\u00e9n\u00e9ralement utilis\u00e9es pour la fabrication de pi\u00e8ces destin\u00e9es aux secteurs de l&#039;a\u00e9rospatiale, du m\u00e9dical et de la chimie.<\/p>\n<h2>Applications du titane grade 2<img decoding=\"async\" src=\"https:\/\/hdcmfg.com\/wp-content\/uploads\/2024\/02\/Titanium-Grade-2-8.webp\" alt=\"titane grade 2 8\" width=\"1000\" height=\"500\" \/><\/h2>\n<p>L&#039;utilisation intensive du titane de grade 2 s&#039;explique par ses propri\u00e9t\u00e9s remarquables dans divers secteurs industriels. Il est employ\u00e9 dans l&#039;a\u00e9rospatiale pour les structures de fuselage et les pi\u00e8ces de moteurs, ainsi que dans le secteur de la sant\u00e9 pour sa biocompatibilit\u00e9 et sa r\u00e9sistance aux proc\u00e9d\u00e9s chimiques, notamment pour les \u00e9quipements r\u00e9sistants \u00e0 la corrosion. De plus, il est utilis\u00e9 dans le domaine maritime, la construction et les \u00e9quipements sportifs gr\u00e2ce \u00e0 sa durabilit\u00e9 et sa r\u00e9sistance \u00e0 l&#039;oxydation \u00e9lectrochimique. En r\u00e9sum\u00e9, l&#039;alliage de titane de grade 2 s&#039;impose comme un mat\u00e9riau irrempla\u00e7able dans des industries telles que l&#039;a\u00e9rospatiale, qui exigent des mat\u00e9riaux l\u00e9gers, r\u00e9sistants \u00e0 la corrosion et performants.<\/p>","protected":false},"excerpt":{"rendered":"<p>Le titane grade 2 est du titane non alli\u00e9. Il est particuli\u00e8rement similaire au titane grade 1. Les gens l&#039;appellent la \u00ab main-d&#039;\u0153uvre \u00bb du titane pur industriel. Compar\u00e9 au grade 1, il pr\u00e9sente une r\u00e9sistance sup\u00e9rieure et des performances de formage \u00e0 froid exceptionnelles.<\/p>","protected":false},"author":1,"featured_media":7465,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Titanium Grade 2: Composition, Properties, and Processing Challenges - HDC Manufacturing","_seopress_titles_desc":"HDC is a professional custom metal parts supplier. 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