{"id":4392,"date":"2026-06-11T00:40:59","date_gmt":"2026-06-11T00:40:59","guid":{"rendered":"https:\/\/beiyutitanium.com\/machining-titanium-bar-stock-guide\/"},"modified":"2026-08-18T04:47:18","modified_gmt":"2026-08-18T04:47:18","slug":"machining-titanium-bar-stock-guide","status":"publish","type":"post","link":"https:\/\/beiyutitanium.com\/fr\/machining-titanium-bar-stock-guide\/","title":{"rendered":"Usinage de barres de titane\u00a0: nuance, \u00e9tat m\u00e9tallurgique, vitesses, avances et \u00e9crouissage"},"content":{"rendered":"<figure class=\"ti-hero-image\" style=\"margin:0 0 1.2em;\"><img decoding=\"async\" src=\"https:\/\/beiyutitanium.com\/wp-content\/uploads\/2026\/03\/ti-6al4v-grade5-titanium-bar-ams4928.jpg\" alt=\"Ti-6Al-4V titanium round bar stock for CNC turning and milling\" style=\"width:100%;height:auto;border-radius:8px;\" \/><\/figure>\n<p>La barre en titane s'usine de fa\u00e7on pr\u00e9visible lorsqu'on part d'un mat\u00e9riau recuit dans la bonne nuance, qu'on utilise du carbure aff\u00fbt\u00e9 \u00e0 une vitesse contr\u00f4l\u00e9e, et qu'on ne laisse jamais l'outil frotter. Le titane conduit la chaleur \u00e0 environ un sixi\u00e8me de la vitesse de l'acier, la chaleur s'accumule donc \u00e0 l'ar\u00eate de coupe, et une avance trop faible \u00e9crouit la surface et compromet la passe suivante. Choisissez d'abord la nuance et l'\u00e9tat m\u00e9tallurgique, puis r\u00e9glez les vitesses et les avances, puis inondez la coupe de lubrifiant.<\/p>\n<h2 id=\"why\">Pourquoi le titane r\u00e9siste \u00e0 l'outil<\/h2>\n<p>Deux propri\u00e9t\u00e9s sont \u00e0 l'origine de presque tous les probl\u00e8mes d'usinage du titane\u00a0:<\/p>\n<ul>\n<li><strong>Faible conductivit\u00e9 thermique.<\/strong> Le Ti-6Al-4V conduit la chaleur \u00e0 environ un sixi\u00e8me de la vitesse de l'acier. La chaleur qui partirait normalement avec le copeau reste dans la zone de coupe et se concentre sur l'ar\u00eate, si bien que les outils s'usent par la chaleur, pas par l'abrasion.<\/li>\n<li><strong>\u00c9crouissage.<\/strong> Si l'ar\u00eate frotte au lieu de couper, la couche superficielle s'\u00e9crouit imm\u00e9diatement. Le tour suivant coupe alors une couche plus dure, ce qui acc\u00e9l\u00e8re l'usure. Les usineurs appellent la solution &#8220;avancez ou retirez-vous&#8221; : continuez \u00e0 couper ou retirez-vous, mais ne restez jamais en contact.<\/li>\n<\/ul>\n<p>Le titane poss\u00e8de \u00e9galement un faible module d'\u00e9lasticit\u00e9, si bien que les pi\u00e8ces minces fl\u00e9chissent et reviennent en arri\u00e8re, et il est chimiquement r\u00e9actif \u00e0 chaud, ce qui explique pourquoi une ar\u00eate \u00e9mouss\u00e9e et un copeau coll\u00e9 d\u00e9gradent rapidement un \u00e9tat de surface.<\/p>\n<h2 id=\"grade\">Commencer par la bonne nuance et le bon \u00e9tat m\u00e9tallurgique<\/h2>\n<p><a href=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-peeled-turned-or-ground\/\">L'usinabilit\u00e9 est d\u00e9termin\u00e9e avant que la barre n'atteigne le tour<\/a>:<\/p>\n<table data-c190=\"1\">\n<thead>\n<tr>\n<th>Point d'usinage<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><a href=\"https:\/\/beiyutitanium.com\/fr\/product\/grade-2-titanium-bar\/\">Grade 2 (commercialement pur)<\/a> est le plus tol\u00e9rant \u00e0 l'usinage et au soudage, utilis\u00e9 pour les pi\u00e8ces anticorrosion.<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/beiyutitanium.com\/fr\/product\/6al4v-titanium-bar\/\">Grade 5 \/ Ti-6Al-4V<\/a> est plus r\u00e9sistant et plus dur pour les outils, mais reste la nuance de r\u00e9f\u00e9rence pour les pi\u00e8ces structurelles usin\u00e9es. Pour un mat\u00e9riau \u00e0 sp\u00e9cification a\u00e9rospatiale, voir <a href=\"https:\/\/beiyutitanium.com\/fr\/product\/6al4v-titanium-bar\/\">Ti-6Al-4V selon AMS 4928<\/a>.<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/beiyutitanium.com\/fr\/product\/ti-6al-4v-eli-titanium-bar\/\">Grade 23 (Ti-6Al-4V ELI)<\/a> se comporte comme le Grade 5 avec une propret\u00e9 renforc\u00e9e pour les pi\u00e8ces critiques en t\u00e9nacit\u00e9.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>L'\u00e9tat m\u00e9tallurgique compte autant que la nuance. La barre recuite s'usine de fa\u00e7on plus pr\u00e9visible que la barre trait\u00e9e par mise en solution et vieillissement (STA), plus dure et plus abrasive. Si la pi\u00e8ce le permet, usinez \u00e0 l'\u00e9tat recuit. Voir <a href=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-condition-annealed-vs-sta\/\">barre de titane recuite vs STA<\/a> pour savoir quoi indiquer sur la commande. Si l'alliage n'est pas encore d\u00e9fini, choisissez-le dans le <a href=\"\/fr\/titanium-bar-grade-selection-guide\/\">guide de s\u00e9lection des nuances de barres en titane<\/a> avant de d\u00e9finir l'\u00e9tat et la sur\u00e9paisseur de coupe.<\/p>\n<h2 id=\"speeds\">Des vitesses et avances qui tiennent<\/h2>\n<p>Utilisez du carbure rev\u00eatu aff\u00fbt\u00e9 con\u00e7u pour le titane. Ces valeurs sont des points de d\u00e9part, non des limites ; ajustez selon l'outil, la rigidit\u00e9 et le liquide de refroidissement.<\/p>\n<table>\n<thead>\n<tr>\n<th>Op\u00e9ration<\/th>\n<th>Vitesse initiale Ti-6Al-4V<\/th>\n<th>Avance<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Tournage (carbure rev\u00eatu)<\/td>\n<td>30 \u00e0 60 m\/min (environ 100 \u00e0 200 SFM)<\/td>\n<td>mod\u00e9r\u00e9e ; maintenez une charge de copeau r\u00e9elle<\/td>\n<\/tr>\n<tr>\n<td>Fraisage (carbure rev\u00eatu)<\/td>\n<td>25 \u00e0 50 m\/min<\/td>\n<td>\u00e0 0.05 \u00e0 0.12 mm\/dent ou plus<\/td>\n<\/tr>\n<tr>\n<td>Seuil minimal d'avance<\/td>\n<td>maintenez au-dessus de ~0,002 in (0,05 mm) par dent<\/td>\n<td>en dessous, l'ar\u00eate frotte et \u00e9crouit<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>La vitesse est la variable sensible. En raison de la relation de dur\u00e9e de vie des outils de Taylor, augmenter la vitesse de coupe de 10 pour cent peut r\u00e9duire la dur\u00e9e de vie de l'outil de 30 \u00e0 50 pour cent. En cas de doute, r\u00e9duisez la vitesse et maintenez l'avance.<\/p>\n<h2 id=\"wear\">Vaincre l'\u00e9crouissage et l'usure de l'outil<\/h2>\n<table data-c190=\"1\">\n<thead>\n<tr>\n<th>\u00c9tat et finition<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Utilisez des outils aff\u00fbt\u00e9s et remplacez-les avant qu'ils ne s'\u00e9moussent ; une ar\u00eate \u00e9mouss\u00e9e frotte, \u00e9crouit la surface et d\u00e9grade la finition.<\/td>\n<\/tr>\n<tr>\n<td>Ne laissez jamais l'outil stationner ou frotter. Maintenez une charge de copeau constante et avancez dans la coupe.<\/td>\n<\/tr>\n<tr>\n<td>Privil\u00e9giez le fraisage en avalant et \u00e9vitez de recouper la couche \u00e9crouie lors d'une passe pr\u00e9c\u00e9dente.<\/td>\n<\/tr>\n<tr>\n<td>Utilisez un arrosage abondant haute pression dirig\u00e9 vers l'ar\u00eate afin d'extraire la chaleur de la zone de coupe. Le contr\u00f4le de la chaleur est le principal levier pour la dur\u00e9e de vie de l'outil.<\/td>\n<\/tr>\n<tr>\n<td>Maintenez un montage rigide. La d\u00e9flexion sur une barre \u00e9lanc\u00e9e provoque des vibrations et des recoupes.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"buying\">Acheter une barre qui s'usine de fa\u00e7on pr\u00e9visible<\/h2>\n<p><a href=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-straightness-how-to-specify\/\">La moiti\u00e9 d'un usinage propre du titane repose sur la barre entrante<\/a>. Lors de la commande de barres destin\u00e9es \u00e0 l'usinage :<\/p>\n<table data-c190=\"1\">\n<thead>\n<tr>\n<th>Champ \u00e0 indiquer<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Sp\u00e9cifiez l'\u00e9tat recuit, sauf si la pi\u00e8ce n\u00e9cessite la r\u00e9sistance STA.<\/td>\n<\/tr>\n<tr>\n<td>Demandez le certificat mati\u00e8re avec la composition chimique et les r\u00e9sultats m\u00e9caniques par num\u00e9ro de coul\u00e9e, afin que la duret\u00e9 et la r\u00e9sistance soient connues avant la coupe.<\/td>\n<\/tr>\n<tr>\n<td>Indiquez la tol\u00e9rance de diam\u00e8tre et la rectitude n\u00e9cessaires au montage ; une barre finie \u00e0 froid pr\u00e9sente des tol\u00e9rances plus serr\u00e9es qu'une barre lamin\u00e9e \u00e0 chaud. Voir <a href=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-forms-sizes-tolerances-guide\/\">formes et tol\u00e9rances des barres en titane<\/a>.<\/td>\n<\/tr>\n<tr>\n<td>Ajoutez une sur\u00e9paisseur d'usinage par rapport \u00e0 la dimension finie, en particulier pour les barres lamin\u00e9es \u00e0 chaud pr\u00e9sentant une surface plus importante.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"faq\">Questions fr\u00e9quemment pos\u00e9es<\/h2>\n<p><strong>Pourquoi mon outil pour titane s'use-t-il si vite ?<\/strong><br \/>La chaleur. Le titane conduit la chaleur \u00e0 environ un sixi\u00e8me de la vitesse de l'acier, elle se concentre donc sur l'ar\u00eate de coupe. R\u00e9duisez la vitesse, maintenez l'avance, utilisez du carbure aff\u00fbt\u00e9 et arrosez abondamment la coupe.<\/p>\n<p><strong>Qu'est-ce qui provoque l'\u00e9crouissage lors de l'usinage du titane ?<\/strong><br \/>Le frottement de l'ar\u00eate au lieu de la coupe. Une avance trop faible ou un outil \u00e9mouss\u00e9 \u00e9crouit la couche superficielle, de sorte que la passe suivante coupe une couche plus dure. Maintenez l'avance au-dessus d'environ 0,002 in par dent et ne stationnez jamais.<\/p>\n<p><strong>Le Grade 2 est-il plus facile \u00e0 usiner que le Grade 5 ?<\/strong><br \/>Oui. Le Grade 2 commercialement pur est plus tendre et plus tol\u00e9rant ; le Grade 5 (Ti-6Al-4V) est plus r\u00e9sistant et plus exigeant pour les outils. Le mat\u00e9riau recuit de l'une ou l'autre nuance s'usine de mani\u00e8re plus pr\u00e9visible que le STA.<\/p>\n<p><strong>Dois-je usiner le titane recuit ou \u00e0 l'\u00e9tat STA ?<\/strong><br \/>Usinez \u00e0 l'\u00e9tat recuit lorsque la pi\u00e8ce le permet ; la barre STA est plus dure et plus abrasive. Confirmez l'\u00e9tat sur la commande de barres.<\/p>\n<h2 id=\"sources\">Comment ces chiffres sont \u00e9tablis<\/h2>\n<p>Les plages de vitesse et d'avance ci-dessus sont des points de d\u00e9part typiques pour le carbure rev\u00eatu sur Ti-6Al-4V, tir\u00e9s de donn\u00e9es d'usinage avec outils en carbure pour alliages de titane. Consid\u00e9rez-les comme une base et ajustez-les \u00e0 votre outil, \u00e0 votre rigidit\u00e9 et \u00e0 votre liquide de coupe. Le comportement thermique refl\u00e8te des donn\u00e9es publi\u00e9es sur les mat\u00e9riaux en titane : Ti-6Al-4V conduit la chaleur \u00e0 environ un sixi\u00e8me de la vitesse de l'acier au carbone, raison pour laquelle la chaleur se concentre sur l'ar\u00eate de coupe. La nuance, l'\u00e9tat et les tol\u00e9rances de barre mentionn\u00e9s ici suivent ASTM B348 (barre et billette en titane), AMS 4928 (barre a\u00e9rospatiale Ti-6Al-4V) et AMS 2241 (tol\u00e9rances des barres et fils en titane). Confirmez les param\u00e8tres de coupe finaux \u00e0 partir des donn\u00e9es de votre fournisseur d'outillage, et confirmez la nuance et l'\u00e9tat \u00e0 partir du certificat mati\u00e8re de la coul\u00e9e sp\u00e9cifique.<\/p>\n<h2>Les caract\u00e9ristiques du stock qui d\u00e9terminent le temps de cycle avant la premi\u00e8re coupe<\/h2>\n<p>Les r\u00e9sultats d'usinage sont g\u00e9n\u00e9ralement examin\u00e9s sous l'angle de l'outillage et des param\u00e8tres. Le mat\u00e9riau d'entr\u00e9e en d\u00e9termine une grande partie, et ces caract\u00e9ristiques sont d\u00e9finies sur la commande plut\u00f4t qu'\u00e0 la machine.<\/p>\n<table>\n<thead>\n<tr>\n<th>Champ<\/th>\n<th>Ce que cela modifie \u00e0 la machine<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Tol\u00e9rance de diam\u00e8tre<\/td>\n<td>La possibilit\u00e9 pour la barre de tourner dans une pince sans rectification pr\u00e9alable<\/td>\n<\/tr>\n<tr>\n<td>Rectitude<\/td>\n<td>Comportement de l'alimentation, du broutage et du chargeur de barres<\/td>\n<\/tr>\n<tr>\n<td>\u00c9tat de surface<\/td>\n<td>Sur\u00e9paisseur d'usinage et n\u00e9cessit\u00e9 d'enlever une couche contamin\u00e9e<\/td>\n<\/tr>\n<tr>\n<td>Condition de livraison<\/td>\n<td>L'\u00e9tat m\u00e9tallurgique, que la finition n'implique pas<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Ce que Beiyu publie pour la fili\u00e8re des barres rectifi\u00e9es de pr\u00e9cision<\/h2>\n<p>Ces \u00e9l\u00e9ments s'appliquent au proc\u00e9d\u00e9 document\u00e9 de rectification sans centre de 3,175 mm \u00e0 25,4 mm de diam\u00e8tre, examin\u00e9 comme une capacit\u00e9 de production plut\u00f4t que comme une d\u00e9claration de stock.<\/p>\n<table>\n<thead>\n<tr>\n<th>Champ<\/th>\n<th>Valeur publi\u00e9e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Tol\u00e9rance de diam\u00e8tre<\/td>\n<td>&plusmn;0,0127 mm (&plusmn;0,0005 in), resserr\u00e9e \u00e0 &plusmn;0,0076 mm sur demande<\/td>\n<\/tr>\n<tr>\n<td>Rectitude<\/td>\n<td>0,5 mm par m\u00e8tre, et 0,3 mm par m\u00e8tre pour les diam\u00e8tres jusqu'\u00e0 25 mm<\/td>\n<\/tr>\n<tr>\n<td>Contr\u00f4le<\/td>\n<td>Ultrasons, courants de Foucault, surface optique, diam\u00e8tre laser et rectitude, chacun sur 100 pour cent du lot<\/td>\n<\/tr>\n<tr>\n<td>Certificat<\/td>\n<td>Certificat de r\u00e9ception 3.1 selon EN 10204 avec tra\u00e7abilit\u00e9 par num\u00e9ro de coul\u00e9e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ces contr\u00f4les rel\u00e8vent du programme de pr\u00e9cision propos\u00e9 et ne s'appliquent pas \u00e0 l'ensemble de la gamme de barres rondes de 1 mm \u00e0 500 mm.<\/p>\n<p><!--c144-cite-block--><\/p>\n<h2>D\u00e9tails des sp\u00e9cifications avec sources<\/h2>\n<p>Le comportement \u00e0 l'usinage des barres en titane d\u00e9coule d'abord des donn\u00e9es de propri\u00e9t\u00e9s publi\u00e9es, avant de d\u00e9couler des choix d'outillage. Les donn\u00e9es de l'ASM Handbook situent la conductivit\u00e9 thermique \u00e0 temp\u00e9rature ambiante du Ti-6Al-4V pr\u00e8s de 6,7 W\/m\u00b7K et son module d'\u00e9lasticit\u00e9 pr\u00e8s de 114 GPa, les deux constantes \u00e0 l'origine de la concentration de chaleur et de la d\u00e9flexion de la pi\u00e8ce d\u00e9crites ci-dessus. Du c\u00f4t\u00e9 des charges, <a href=\"https:\/\/store.astm.org\/standards\/b348\" target=\"_blank\" rel=\"noopener\">ASTM B348<\/a> fixe une r\u00e9sistance \u00e0 la traction minimale de 345 MPa pour Grade 2 contre 895 MPa pour Grade 5, ce qui repr\u00e9sente l'essentiel de l'\u00e9cart d'usinabilit\u00e9 entre les deux nuances en une paire de chiffres.<\/p>\n<p>Beiyu Titanium fournit des barres d'usinage dans les formes de section que les ateliers montent directement sur leurs montages : barre carr\u00e9e de 3 x 3 mm \u00e0 500 x 500 mm, barre plate de 3 x 12,7 mm \u00e0 30 x 500 mm et barre hexagonale jusqu'\u00e0 17 mm entre plats, ainsi que des barres rondes, chacune livr\u00e9e dans l'une des trois conditions de livraison cod\u00e9es R, M et Y sur la fiche usine, qui constitue un champ de commande distinct de l'\u00e9tat de surface. Pour les produits o\u00f9 la tol\u00e9rance est critique, Beiyu propose des barres selon les classes de tol\u00e9rance ISO h6 \u00e0 h9 avec surfaces polies ou sabl\u00e9es, de sorte que la sur\u00e9paisseur de diam\u00e8tre pr\u00e9vue par le programmeur est d\u00e9finie \u00e0 l'usine plut\u00f4t que r\u00e9cup\u00e9r\u00e9e lors de la premi\u00e8re coupe.<\/p>\n<p><!--\/c144-cite-block--><\/p>\n<h2 id=\"request\">Demander une barre de titane<\/h2>\n<p>Envoyez la nuance, l'\u00e9tat, la dimension, la tol\u00e9rance et les documents n\u00e9cessaires, et Beiyu confirmera le stock par rapport \u00e0 votre plan d'usinage avant l'offre. Contact <a href=\"mailto:penn@beiyutitanium.com\">penn@beiyutitanium.com<\/a>.<\/p>\n<ul>\n<li><a href=\"https:\/\/beiyutitanium.com\/fr\/product\/6al4v-titanium-bar\/\">Barre en titane Grade 5 (Ti-6Al-4V)<\/a><\/li>\n<li><a href=\"https:\/\/beiyutitanium.com\/fr\/product\/grade-2-titanium-bar\/\">Barre en titane Grade 2<\/a><\/li>\n<li><a href=\"https:\/\/beiyutitanium.com\/fr\/product-category\/woo-products\/titanium\/titanium-bar\/\">Toutes les barres en titane<\/a><\/li>\n<\/ul>\n<h2 id=\"related\">Guides sur le titane associ\u00e9s<\/h2>\n<ul>\n<li><a href=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-forms-sizes-tolerances-guide\/\">Formes &amp; tol\u00e9rances des barres en titane<\/a><\/li>\n<li><a href=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-condition-annealed-vs-sta\/\">\u00c9tat de la barre en titane : recuit vs STA<\/a><\/li>\n<li><a href=\"https:\/\/beiyutitanium.com\/fr\/astm-b348-titanium-bar-billet-guide\/\">Guide des barres &amp; billettes en titane ASTM B348<\/a><\/li>\n<li><a href=\"https:\/\/beiyutitanium.com\/fr\/titanium-grades-comparison-guide\/\">Comparaison des nuances de titane : Grade 2 \u00e0 23<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Titanium bar machines predictably when you start from annealed stock in the right grade, run sharp carbide at a controlled speed, and never let the tool rub. Titanium conducts heat at roughly one sixth the rate of steel, so heat piles up at the cutting edge, and a feed rate that is too low work-hardens [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4227,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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Ce travail reposait sur des plans de contr\u00f4le et d'essais, la certification des mat\u00e9riaux et la tra\u00e7abilit\u00e9 par num\u00e9ro de coul\u00e9e, la coordination du contr\u00f4le par tierce partie, ainsi que le contr\u00f4le de la documentation et des dossiers de projet. Ce sont les quatre m\u00eames \u00e9l\u00e9ments qu'un acheteur de l'industrie des proc\u00e9d\u00e9s ou un acheteur soumis \u00e0 r\u00e9glementation exigera d'un fournisseur de titane, et le fait d'avoir d\u00fb les faire appliquer en tant que client explique qu'ils soient trait\u00e9s ici comme faisant partie de la fourniture plut\u00f4t que comme des documents produits ult\u00e9rieurement. Son travail quotidien couvre les questions auxquelles ce site est destin\u00e9 \u00e0 r\u00e9pondre : choisir entre des nuances de titane commercialement pur et alli\u00e9 pour un service corrosif, lire un certificat mati\u00e8re par rapport \u00e0 la norme command\u00e9e, et faire correspondre la d\u00e9signation d'un acheteur (nuance ASTM, UNS, num\u00e9ro Werkstoff allemand ou code NF fran\u00e7ais) au m\u00eame m\u00e9tal sur diff\u00e9rents march\u00e9s. Beiyu fournit des produits d'usine en titane, alliages de nickel et m\u00e9taux r\u00e9fractaires, notamment des barres, tiges, plaques, tubes, blocs, anneaux, bobines, lingots, pi\u00e8ces forg\u00e9es et pi\u00e8ces usin\u00e9es, avec documentation EN 10204 3.1 et tra\u00e7abilit\u00e9 par num\u00e9ro de coul\u00e9e.","url":"https:\/\/beiyutitanium.com\/fr\/author\/penn-ma\/"}]}},"_links":{"self":[{"href":"https:\/\/beiyutitanium.com\/fr\/wp-json\/wp\/v2\/posts\/4392","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/beiyutitanium.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/beiyutitanium.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/beiyutitanium.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/beiyutitanium.com\/fr\/wp-json\/wp\/v2\/comments?post=4392"}],"version-history":[{"count":11,"href":"https:\/\/beiyutitanium.com\/fr\/wp-json\/wp\/v2\/posts\/4392\/revisions"}],"predecessor-version":[{"id":5541,"href":"https:\/\/beiyutitanium.com\/fr\/wp-json\/wp\/v2\/posts\/4392\/revisions\/5541"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/beiyutitanium.com\/fr\/wp-json\/wp\/v2\/media\/4227"}],"wp:attachment":[{"href":"https:\/\/beiyutitanium.com\/fr\/wp-json\/wp\/v2\/media?parent=4392"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/beiyutitanium.com\/fr\/wp-json\/wp\/v2\/categories?post=4392"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/beiyutitanium.com\/fr\/wp-json\/wp\/v2\/tags?post=4392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}