{"id":5432,"date":"2026-08-14T08:53:01","date_gmt":"2026-08-14T08:53:01","guid":{"rendered":"https:\/\/beiyutitanium.com\/titanium-bar-cut-length-and-end-condition\/"},"modified":"2026-08-15T01:47:35","modified_gmt":"2026-08-15T01:47:35","slug":"titanium-bar-cut-length-and-end-condition","status":"publish","type":"post","link":"https:\/\/beiyutitanium.com\/fr\/titanium-bar-cut-length-and-end-condition\/","title":{"rendered":"Longueur de coupe et \u00e9tat des extr\u00e9mit\u00e9s des barres en titane"},"content":{"rendered":"<figure class=\"ti-hero-image\" style=\"margin:0 0 1.2em;\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/beiyutitanium.com\/wp-content\/uploads\/2026\/08\/titanium-bar-cut-ends-upright.webp\" alt=\"Titanium round bar cut to length and stood on end, cut faces visible before end preparation\" width=\"1200\" height=\"800\" loading=\"eager\" style=\"width:100%;height:auto;border-radius:8px;\" \/><\/figure>\n<h2>La longueur de coupe est le point o\u00f9 la mati\u00e8re dispara\u00eet discr\u00e8tement<\/h2>\n<p>La barre est achet\u00e9e au poids et consomm\u00e9e par pi\u00e8ce. Entre les deux se trouvent la tol\u00e9rance de longueur de coupe et l'\u00e9tat des extr\u00e9mit\u00e9s, et aucun des deux n'est implicite du diam\u00e8tre ou de la norme. Une commande qui les laisse vides retourne une barre conforme \u00e0 la sp\u00e9cification mais n\u00e9anmoins source de gaspillage sur la machine.<\/p>\n<table>\n<thead>\n<tr>\n<th>Ce que d\u00e9terminent les champs de coupe<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Le nombre de pi\u00e8ces obtenues \u00e0 partir de chaque barre<\/td>\n<\/tr>\n<tr>\n<td>Si la premi\u00e8re et la derni\u00e8re pi\u00e8ce de chaque barre sont utilisables<\/td>\n<\/tr>\n<tr>\n<td>Comment la barre est charg\u00e9e dans un chargeur ou un mandrin<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>La longueur non d\u00e9finie et la coupe \u00e0 longueur sont des achats diff\u00e9rents<\/h2>\n<table>\n<thead>\n<tr>\n<th>Mode de commande<\/th>\n<th>Ce qui est livr\u00e9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Longueurs d'usine ou longueurs non d\u00e9finies<\/td>\n<td>Longueurs comprises dans une plage indiqu\u00e9e, m\u00e9lang\u00e9es dans le lot<\/td>\n<\/tr>\n<tr>\n<td>Coupe \u00e0 longueur<\/td>\n<td>Une longueur indiqu\u00e9e avec une tol\u00e9rance indiqu\u00e9e sur chaque pi\u00e8ce<\/td>\n<\/tr>\n<tr>\n<td>Coupe \u00e0 longueur, aucune tol\u00e9rance indiqu\u00e9e<\/td>\n<td>L'usine applique sa propre tol\u00e9rance de coupe, qui peut ne pas convenir au chargeur<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>L'\u00e9tat des extr\u00e9mit\u00e9s est un champ distinct de la longueur<\/h2>\n<p>La fa\u00e7on dont les extr\u00e9mit\u00e9s de la barre sont laiss\u00e9es affecte <a href=\"https:\/\/beiyutitanium.com\/fr\/machining-titanium-bar-stock-guide\/\">le chargement, la s\u00e9curit\u00e9 et la premi\u00e8re coupe<\/a>. Cela n'est pas couvert par la tol\u00e9rance de longueur.<\/p>\n<table>\n<thead>\n<tr>\n<th>\u00c9tat des extr\u00e9mit\u00e9s<\/th>\n<th>Utilisation habituelle \u00e0 la commande<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Tel que sci\u00e9<\/td>\n<td>Un traitement ult\u00e9rieur enl\u00e8vera de toute fa\u00e7on l'extr\u00e9mit\u00e9<\/td>\n<\/tr>\n<tr>\n<td>\u00c9bavur\u00e9<\/td>\n<td>S\u00e9curit\u00e9 de manutention et chargement propre<\/td>\n<\/tr>\n<tr>\n<td>Chanfrein\u00e9<\/td>\n<td>Introduction dans les pinces, bagues et tubes d'alimentation<\/td>\n<\/tr>\n<tr>\n<td>Dress\u00e9 d'\u00e9querre<\/td>\n<td>L'extr\u00e9mit\u00e9 devient une r\u00e9f\u00e9rence d'usinage<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Les op\u00e9rations secondaires que Beiyu peut r\u00e9aliser sur les barres<\/h2>\n<p>Ces op\u00e9rations sont r\u00e9alis\u00e9es conform\u00e9ment \u00e0 la commande plut\u00f4t que comme finition par d\u00e9faut, et elles sont <a href=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-forms-sizes-tolerances-guide\/\">confirm\u00e9es pour le diam\u00e8tre et la longueur command\u00e9s avant la tarification<\/a>.<\/p>\n<table>\n<thead>\n<tr>\n<th>Op\u00e9ration secondaire<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Chanfreinage<\/td>\n<\/tr>\n<tr>\n<td>Contr\u00f4le de la rectitude<\/td>\n<\/tr>\n<tr>\n<td>Coupe \u00e0 longueur<\/td>\n<\/tr>\n<tr>\n<td>\u00c9bavurage<\/td>\n<\/tr>\n<tr>\n<td>Emballage et calage sur mesure<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Interaction de la coupe avec le reste de la commande<\/h2>\n<table>\n<thead>\n<tr>\n<th>Champ<\/th>\n<th>Interaction<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Rectitude<\/td>\n<td>La courbure sur une barre longue affecte son alimentation, quelle que soit la pr\u00e9cision de coupe<\/td>\n<\/tr>\n<tr>\n<td>\u00c9tat de surface<\/td>\n<td>D\u00e9termine si l'extr\u00e9mit\u00e9 peut \u00eatre dress\u00e9e sans passe d'\u00e9bauche<\/td>\n<\/tr>\n<tr>\n<td>Emballage<\/td>\n<td>Les longueurs de coupe modifient la mani\u00e8re dont le mat\u00e9riau est regroup\u00e9 et prot\u00e9g\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Marquage<\/td>\n<td>Les pi\u00e8ces courtes coup\u00e9es soul\u00e8vent la question de savoir comment chaque pi\u00e8ce reste identifi\u00e9e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u00c9l\u00e9ments \u00e0 indiquer sur la commande<\/h2>\n<pre style=\"white-space:pre-wrap;background:#f4f6f7;border:1px solid #dfe4e8;border-radius:4px;padding:14px 16px;font-size:13.5px;line-height:1.7;overflow-x:auto\">Longueur : ______ (indiquer longueur non d\u00e9finie ou coup\u00e9e \u00e0 longueur) Tol\u00e9rance de longueur : ______ (indiquer s\u00e9par\u00e9ment le plus et le moins s'ils diff\u00e8rent) \u00c9tat des extr\u00e9mit\u00e9s : ______ (sci\u00e9es, \u00e9bavur\u00e9es, chanfrein\u00e9es ou dress\u00e9es) D\u00e9tail du chanfrein : ______ (indiquer l'angle et la largeur si un chanfrein est requis) Rectitude : ______ mm par m\u00e8tre Marquage : ______ (indiquer ce qui doit appara\u00eetre sur chaque pi\u00e8ce)<\/pre>\n<p>Indiquez comment la barre sera charg\u00e9e et usin\u00e9e. Beiyu confirme les exigences de coupe et d'extr\u00e9mit\u00e9 par rapport au diam\u00e8tre et \u00e0 la longueur command\u00e9s avant d'\u00e9tablir l'offre.<\/p>\n<div class=\"ti-rfq-box\">\n<h2>D\u00e9tails des sp\u00e9cifications avec sources<\/h2>\n<p>La longueur de coupe et l'\u00e9tat des extr\u00e9mit\u00e9s sont des champs de commande, non des propri\u00e9t\u00e9s de la nuance. <a href=\"https:\/\/store.astm.org\/standards\/b348\" target=\"_blank\" rel=\"noopener\">ASTM B348<\/a> renvoie toutes les tol\u00e9rances dimensionnelles \u00e0 ses propres tableaux (ASTM B348, dimensions, poids et variations admissibles) et \u00e9num\u00e8re la finition parmi les \u00e9l\u00e9ments qu'une commande doit inclure, avec le num\u00e9ro de nuance, la classification du produit, la composition chimique, les propri\u00e9t\u00e9s m\u00e9caniques, le marquage, l'emballage, les rapports requis et le traitement du mat\u00e9riau rejet\u00e9 (ASTM B348, informations de commande). Rien dans la nuance ne d\u00e9termine l'\u00e9tat d'arriv\u00e9e des extr\u00e9mit\u00e9s.<\/p>\n<table data-c195=\"1\">\n<thead>\n<tr>\n<th>Champ<\/th>\n<th>O\u00f9 cela est d\u00e9fini<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Composition chimique et minima m\u00e9caniques<\/td>\n<td>La nuance, dans ASTM B348<\/td>\n<\/tr>\n<tr>\n<td>Tol\u00e9rance de longueur<\/td>\n<td>Les tableaux de tol\u00e9rances de la norme command\u00e9e<\/td>\n<\/tr>\n<tr>\n<td>\u00c9tat des extr\u00e9mit\u00e9s<\/td>\n<td>Indiqu\u00e9 par l'acheteur sur la commande<\/td>\n<\/tr>\n<tr>\n<td>Sort des mat\u00e9riaux rejet\u00e9s<\/td>\n<td>Indiqu\u00e9 sur la commande selon ASTM B348<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Les conditions de poids et de quantit\u00e9 figurent dans la m\u00eame clause : ASTM B348 consid\u00e8re les suppl\u00e9ments de quantit\u00e9 comme applicables aux articles individuels d'une nuance, \u00e9paisseur, largeur et longueur command\u00e9es simultan\u00e9ment pour exp\u00e9dition vers une destination (ASTM B348, weight). La m\u00eame clause ajoute que diff\u00e9rentes longueurs de m\u00eame dimension et nuance peuvent \u00eatre combin\u00e9es pour le suppl\u00e9ment de quantit\u00e9, de sorte que la r\u00e9partition d'une ligne en plusieurs longueurs de coupe est une d\u00e9cision de commande \u00e0 prendre d\u00e9lib\u00e9r\u00e9ment plut\u00f4t qu'une p\u00e9nalit\u00e9 automatique. La d\u00e9signation d'une tol\u00e9rance de longueur fixe la dimension. Elle ne d\u00e9cide pas \u00e0 elle seule de la condition d'extr\u00e9mit\u00e9, qui constitue un champ distinct avec ses propres cons\u00e9quences au chargeur de barres et \u00e0 la premi\u00e8re coupe. Dans la pratique d'approvisionnement de Beiyu, la coupe, le chanfreinage, l'\u00e9bavurage et le dressage des extr\u00e9mit\u00e9s sont r\u00e9alis\u00e9s selon la commande plut\u00f4t que comme finition par d\u00e9faut, et sont confirm\u00e9s pour le diam\u00e8tre et la longueur command\u00e9s avant l'\u00e9tablissement du prix.<\/p>\n<h2>Envoyer une demande de prix technique<\/h2>\n<p>Pour les demandes de prix de barres en titane, incluez la nuance, la norme, le diam\u00e8tre, la longueur de coupe avec sa tol\u00e9rance, l'\u00e9tat des extr\u00e9mit\u00e9s requis, la mani\u00e8re dont la barre sera charg\u00e9e et usin\u00e9e, la quantit\u00e9 et le certificat mati\u00e8re requis.<\/p>\n<p><a class=\"contact-popup-btn\" href=\"#contact-popup-btn\">Envoyer les d\u00e9tails de la demande de prix<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Cut length is where material quietly disappears Bar is bought by weight and consumed by part. Between those two sits the cut length tolerance and the end condition, and neither is implied by the diameter or the standard. An order that leaves them blank returns bar that is legal against the specification and still wasteful [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":5477,"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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[27,137],"tags":[],"class_list":["post-5432","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-technical-guides"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Titanium Bar Cut Length and End Condition<\/title>\n<meta name=\"description\" content=\"Bar is bought by weight and consumed by part. See how random length and cut-to-length differ, what the four end conditions are bought for, and how the cut affects the rest.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-cut-length-and-end-condition\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Titanium Bar Cut Length and End Condition\" \/>\n<meta property=\"og:description\" content=\"Bar is bought by weight and consumed by part. See how random length and cut-to-length differ, what the four end conditions are bought for, and how the cut affects the rest.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/beiyutitanium.com\/fr\/titanium-bar-cut-length-and-end-condition\/\" \/>\n<meta property=\"og:site_name\" content=\"Beiyu Titanium\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-14T08:53:01+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-15T01:47:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/beiyutitanium.com\/wp-content\/uploads\/2026\/08\/titanium-bar-cut-ends-upright.webp\" \/>\n<meta name=\"author\" content=\"Penn Ma\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Penn Ma\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-cut-length-and-end-condition\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-cut-length-and-end-condition\\\/\"},\"author\":{\"name\":\"Penn Ma\",\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/#\\\/schema\\\/person\\\/3560db17cf08813edf34f012735b971b\"},\"headline\":\"Titanium Bar Cut Length and End Condition\",\"datePublished\":\"2026-08-14T08:53:01+00:00\",\"dateModified\":\"2026-08-15T01:47:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-cut-length-and-end-condition\\\/\"},\"wordCount\":664,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-cut-length-and-end-condition\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/beiyutitanium.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/titanium-bar-cut-ends-upright.webp\",\"articleSection\":[\"News\",\"Technical Guides\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-cut-length-and-end-condition\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-cut-length-and-end-condition\\\/\",\"url\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-cut-length-and-end-condition\\\/\",\"name\":\"Titanium Bar Cut Length and End Condition\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-cut-length-and-end-condition\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/beiyutitanium.com\\\/titanium-bar-cut-length-and-end-condition\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/beiyutitanium.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/titanium-bar-cut-ends-upright.webp\",\"datePublished\":\"2026-08-14T08:53:01+00:00\",\"dateModified\":\"2026-08-15T01:47:35+00:00\",\"description\":\"Bar is bought by weight and consumed by part. 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Production runs through the Beiyu titanium mill in Baoji, Shaanxi. 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