{"id":23539,"date":"2023-09-08T11:58:37","date_gmt":"2023-09-08T11:58:37","guid":{"rendered":"https:\/\/xometry.pro\/articles\/3d-printing-dmls-overview\/"},"modified":"2025-11-07T17:05:04","modified_gmt":"2025-11-07T16:05:04","slug":"impression-3d-dmls-technologie","status":"publish","type":"articles","link":"https:\/\/xometry.pro\/fr\/articles\/impression-3d-dmls-technologie\/","title":{"rendered":"Direct Metal Laser Sintering (DMLS) : aper\u00e7u d&rsquo;une technologie d\u2019impression 3D"},"content":{"rendered":"<div role=\"navigation\" aria-label=\"Table des mati\u00e8res\" class=\"simpletoc wp-block-simpletoc-toc\"><h2 class=\"simpletoc-title\">Table des mati\u00e8res<\/h2>\n<ul class=\"simpletoc-list\">\n<li><a href=\"#h-comment-fonctionne-l-impression-3d-dmls\">Comment fonctionne l\u2019impression 3D DMLS ?<\/a>\n\n<\/li>\n<li><a href=\"#h-les-materiaux-pour-l-impression-3d-dmls-nbsp\">Les mat\u00e9riaux pour l\u2019impression 3D DMLS&nbsp;<\/a>\n\n<\/li>\n<li><a href=\"#h-avantages-de-la-technologie-dmls-en-impression-3d\">Avantages de la technologie DMLS en impression 3D<\/a>\n\n\n<\/li>\n\n<\/li>\n\n<\/li>\n\n<li><a href=\"#h-inconvenients-de-la-technologie-3d-dmls\">Inconv\u00e9nients de la technologie 3D DMLS<\/a>\n\n\n<\/li>\n\n<\/li>\n\n<\/li>\n\n<\/li>\n\n<\/li>\n\n<li><a href=\"#h-services-d-impression-3d-dmls-de-xometry\">Services d\u2019impression 3D DMLS de Xometry<\/a>\n<\/li><\/ul><\/div>\n\n\n<p>Le proc\u00e9d\u00e9 <a href=\"https:\/\/xometry.eu\/fr\/impression-3d-frittage-laser-direct-de-metal-dmls\/\" target=\"_blank\" rel=\"noreferrer noopener\">Direct Metal Laser Sintering (DMLS)<\/a> appartient, tout comme l\u2019impression <a href=\"https:\/\/xometry.eu\/fr\/impression-3d-frittage-selectif-par-laser-sls\/\" target=\"_blank\" rel=\"noreferrer noopener\">SLS<\/a>, \u00e0 la famille des technologies d\u2019impression 3D bas\u00e9es sur lit de mati\u00e8re pulv\u00e9rulente en fusion (Powder Bed Fusion ou PBF en anglais), la diff\u00e9rence \u00e9tant que l\u2019impression DMLS fait usage de poudres m\u00e9talliques, en lieu et place des mati\u00e8res plastiques habituelles, afin de r\u00e9aliser des ouvrages en m\u00e9tal, aussi bien pour du prototypage que pour des pi\u00e8ces produites en s\u00e9rie.&nbsp;<\/p>\n\n\n\n<p>La technologie DMLS se rapproche de l\u2019impression faite par SLM (Selective Laser Melting en anglais), \u00e0 un d\u00e9tail pr\u00e8s :&nbsp; la temp\u00e9rature utilis\u00e9e au cours du processus de fusion n\u2019est pas la m\u00eame. L\u00e0 ou la SLM portera le m\u00e9tal jusqu\u2019\u00e0 son point de fusion pour le faire passer \u00e0 l\u2019\u00e9tat liquide, l\u2019impression DMLS op\u00e8re un frittage (soudage des grains m\u00e9talliques op\u00e9r\u00e9 par la chaleur). Il n\u2019en demeure pas moins que les deux termes (SLM et DMLS) sont souvent utilis\u00e9s de fa\u00e7on interchangeable dans le domaine de l\u2019impression 3D.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-comment-fonctionne-l-impression-3d-dmls\"><strong>Comment fonctionne l\u2019impression 3D DMLS ?<\/strong><\/h2>\n\n\n<p>Le proc\u00e9d\u00e9 Direct Metal Laser Sintering implique six \u00e9tapes simples :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00c9tape 1<\/strong> : l\u2019impression DMLS d\u00e9marre par le d\u00e9coupage en \u00ab tranches \u00bb du mod\u00e8le CAO d\u2019origine, ce qui permet d\u2019obtenir plusieurs couches extr\u00eamement fines, chacune \u00e9tant, par la suite, traduite en un mod\u00e8le 2D.<\/li>\n\n\n\n<li><strong>\u00c9tape 2<\/strong> : \u00e0 l\u2019int\u00e9rieur de la chambre d\u2019impression, remplie d\u2019un gaz inerte, on emploie un faisceau laser \u00e0 haute puissance pour chauffer le mat\u00e9riau utilis\u00e9.<\/li>\n\n\n\n<li><strong>\u00c9tape 3<\/strong> : l\u2019imprimante int\u00e8gre un syst\u00e8me permettant de r\u00e9approvisionner le mat\u00e9riau d\u2019impression \u00e0 la vol\u00e9e (\u00e0 l\u2019aide d\u2019une plateforme \u00e9l\u00e9vatrice coupl\u00e9e \u00e0 un syst\u00e8me de roulement) vers une seconde plateforme d\u00e9di\u00e9e \u00e0 la fabrication de l\u2019ouvrage.<\/li>\n\n\n\n<li><strong>\u00c9tape 4<\/strong> : une fois une nouvelle couche amen\u00e9e sur la plateforme d\u2019impression, le faisceau laser amorce son parcours afin d\u2019op\u00e9rer un frittage s\u00e9lectif de la mati\u00e8re poudreuse, pour solidifier les parties n\u00e9cessaires. Cette s\u00e9quence est ensuite r\u00e9p\u00e9t\u00e9e jusqu\u2019\u00e0 ach\u00e8vement de l\u2019ouvrage.<\/li>\n\n\n\n<li><strong>\u00c9tape 5<\/strong> : une \u00e9tape de refroidissement pr\u00e9c\u00e8de le retrait des poudres non utilis\u00e9es de l\u2019imprimante. On proc\u00e8de ensuite \u00e0 l\u2019enl\u00e8vement des \u00e9ventuelles structures de maintien ou \u00e0 d\u2019autres op\u00e9rations de post-usinage.<\/li>\n\n\n\n<li><strong>\u00c9tape 6 <\/strong>: les pi\u00e8ces imprim\u00e9es en DMLS peuvent \u00eatre trait\u00e9es comme n\u2019importe quelle autre pi\u00e8ce m\u00e9tallique produite de fa\u00e7on plus conventionnelle. Elles peuvent, par exemple, \u00eatre usin\u00e9es, voire subir un traitement de surface ou thermique.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div id=\"wSK4nz3EypI-69f17c97ed2a5\" data-video-id=\"wSK4nz3EypI\" class=\"ma-gdpr-youtube-wrapper\" style=\"width:100%;height:56.25%;padding-top:56.25%;\" data-new-window=\"\" data-yt-parameters=\"\"><picture class=\"ma-gdpr-youtube-thumbnail\"><source media=\"(min-width:640px)\" type=\"image\/webp\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/wSK4nz3EypI\/wSK4nz3EypI_hq720.webp\"><source media=\"(min-width:640px)\" type=\"image\/jpeg\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/wSK4nz3EypI\/wSK4nz3EypI_hq720.jpg\"><source media=\"(min-width:320px)\" type=\"image\/webp\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/wSK4nz3EypI\/wSK4nz3EypI_sddefault.webp\"><source media=\"(min-width:320px)\" type=\"image\/jpeg\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/wSK4nz3EypI\/wSK4nz3EypI_sddefault.jpg\"><source media=\"(min-width:240px)\" type=\"image\/webp\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/wSK4nz3EypI\/wSK4nz3EypI_hqdefault.webp\"><source media=\"(min-width:240px)\" type=\"image\/jpeg\" srcset=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/wSK4nz3EypI\/wSK4nz3EypI_hqdefault.jpg\"><img decoding=\"async\" src=\"\/\/xometry.pro\/wp-content\/uploads\/ma-gdpr-youtube-thumbnails\/wSK4nz3EypI\/wSK4nz3EypI_mqdefault.jpg\" alt=\"\" title=\"\"><\/picture><svg class=\"ma-gdpr-youtube-button\"><use xlink:href=\"#ma-gdpr-youtube-play-button\"><\/use><\/svg><div class=\"ma-gdpr-youtube-notice\" style=\"font-size:.7em;\"><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-les-materiaux-pour-l-impression-3d-dmls-nbsp\"><strong>Les mat\u00e9riaux pour l\u2019impression 3D DMLS <\/strong><\/h2>\n\n\n<p>Parmi les mat\u00e9riaux les plus commun\u00e9ment utilis\u00e9s pour l\u2019impression DMLS, Xometry propose :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Aluminium : tel que AlSiMG<\/li>\n\n\n\n<li>Acier : notamment acier \u00e0 outils MS1, acier inoxydable 17-4, <a href=\"https:\/\/xometry.pro\/fr\/materiaux\/acier-inoxydable-1-4404\/\">acier inoxydable 316L<\/a><\/li>\n\n\n\n<li>Inconel : comme<a href=\"https:\/\/xometry.pro\/fr\/materiaux\/inconel-718\/\"> l\u2019Inconel 718<\/a><\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-avantages-de-la-technologie-dmls-en-impression-3d\"><strong>Avantages de la technologie DMLS en impression 3D<\/strong><\/h2>\n\n\n<p>En ce qui concerne la technologie DMLS, voici les principaux facteurs qui en font un proc\u00e9d\u00e9 unique en son genre :<\/p>\n\n\n    <aside class=\"article-content-aside\">\r\n        <a href=\"https:\/\/xometry.pro\/fr\/articles\/dmls-conceils-conception\/\" class=\"aside-image sidebar__aside-image\"><img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/2-DMLS-Aluminum-AlSi10Mg-Front-scaled.jpg\" alt=\"\"><\/a><a href=\"https:\/\/xometry.pro\/fr\/articles\/dmls-conceils-conception\/\" class=\"aside-link\">9 erreurs \u00e0 \u00e9viter lors de la phase de design pour l\u2019impression 3D par proc\u00e9d\u00e9 DMLS<\/a>    <\/aside>\r\n    \n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><h3 class=\"wp-block-heading\" id=\"h-la-technologie-dmls-permet-de-realiser-des-ouvrages-complexes\"><strong>La technologie DMLS permet de r\u00e9aliser des ouvrages complexes<\/strong><\/h3>\n\n\n<p>Un des principaux avantages de l\u2019impression DMLS, c\u2019est qu\u2019elle permet de r\u00e9aliser des ouvrages qui seraient trop on\u00e9reux, voire impossibles \u00e0 r\u00e9aliser par des m\u00e9thodes de fabrication conventionnelles. Tout le potentiel de la technologie s\u2019exprime quand il s\u2019agit de <a href=\"https:\/\/xometry.eu\/fr\/astuces-de-conception-pour-limpression-3d-metal-dmls\/\" target=\"_blank\" rel=\"noreferrer noopener\">concevoir des pi\u00e8ces dot\u00e9es de g\u00e9om\u00e9tries complexes<\/a> (syst\u00e8mes de fixation int\u00e9gr\u00e9s, canaux longs et \u00e9troits, structures maill\u00e9es, etc\u2026). <\/p>\n\n\n\n<p>La technologie DMLS facilite les assemblages d\u2019un seul tenant, ce qui permet, en combinant plusieurs pi\u00e8ces en une seule impression, de r\u00e9duire le nombre de pi\u00e8ces \u00e0 imprimer, diminuant du m\u00eame coup les temps d\u2019assemblage et le taux de d\u00e9fauts.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div style=\"height:31px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"2560\" height=\"1807\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2024\/02\/3dprinting-metal-dmls-scaled.jpg\" alt=\"Prototype example built with DMLS 3D printing\" class=\"wp-image-31380\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2024\/02\/3dprinting-metal-dmls-scaled.jpg 2560w, https:\/\/xometry.pro\/wp-content\/uploads\/2024\/02\/3dprinting-metal-dmls-300x212.jpg 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2024\/02\/3dprinting-metal-dmls-1024x723.jpg 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2024\/02\/3dprinting-metal-dmls-768x542.jpg 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2024\/02\/3dprinting-metal-dmls-1536x1084.jpg 1536w, https:\/\/xometry.pro\/wp-content\/uploads\/2024\/02\/3dprinting-metal-dmls-2048x1446.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2024\/02\/3dprinting-metal-dmls-scaled.jpg\" data-fancybox=\"gallery-23539\" data-caption=\"Prototype r\u00e9alis\u00e9 avec l&#039;impression 3D DMLS\" aria-label=\"Ouvrir l&#039;image compl\u00e8te\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2024\/02\/3dprinting-metal-dmls-scaled.jpg\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><figcaption class=\"wp-element-caption\">Prototype r\u00e9alis\u00e9 avec l&rsquo;impression 3D DMLS<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-des-delais-de-fabrication-raccourcis\"><strong>Des d\u00e9lais de fabrication raccourcis<\/strong><\/h3>\n\n\n<p>Les proc\u00e9d\u00e9s de fabrication conventionnels souffrent de temps de mise en place assez \u00e9lev\u00e9s, dus notamment \u00e0 la pr\u00e9paration de l\u2019outillage et des gabarits n\u00e9cessaires. Dans le cas de l\u2019impression DMLS, les pi\u00e8ces peuvent \u00eatre imprim\u00e9es \u00e0 la demande, sans soucis d\u2019outillage, et sans avoir \u00e0 passer par la traditionnelle phase de mont\u00e9e en quantit\u00e9. Cela se traduit par des d\u00e9lais de livraison comparativement plus courts qu\u2019avec l\u2019usinage CNC. Combin\u00e9s \u00e0 la possibilit\u00e9 de r\u00e9aliser des prototypes efficacement, on aboutit \u00e0 une r\u00e9duction substantielle des temps de mise sur le march\u00e9. C\u2019est l\u00e0 le plus gros avantage de la technologie DMLS.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-la-technologie-dmls-utilise-des-composants-legers-et-durable\"><strong>La technologie DMLS utilise des composants l\u00e9gers et durable<\/strong><\/h3>\n\n\n<p>Les pi\u00e8ces fabriqu\u00e9es \u00e0 partir de superalliages, comme l\u2019Inconel 718, l\u2019AlSi10Mg ou le chrome cobalt, sont connus pour \u00eatre comparativement plus l\u00e9gers par rapport \u00e0 des pi\u00e8ces similaires obtenues par usinage conventionnel. \u00c0 titre d\u2018exemple, <a href=\"https:\/\/www.youtube.com\/watch?v=rMzVSbNebCg&amp;ab_channel=GEAviation\" target=\"_blank\" rel=\"noreferrer noopener\">la fameuse buse de carburant imprim\u00e9e en 3D de GE<\/a>, destin\u00e9e \u00e0 leur famille de moteurs LEAP, \u00e9tait originellement compos\u00e9e de 20 pi\u00e8ces distinctes, commissionn\u00e9es aupr\u00e8s de diff\u00e9rents fournisseurs. En passant \u00e0 l\u2019impression direct metal laser sintering (DMLS), ils ont pu obtenir une pi\u00e8ce r\u00e9alis\u00e9e d\u2019un seul tenant, 25% plus l\u00e9g\u00e8re et 5 fois plus r\u00e9sistante que l\u2019originale.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-la-technologie-dmls-permet-de-reduire-le-taux-de-dechets\"><strong>La technologie DMLS permet de r\u00e9duire le taux de d\u00e9chets<\/strong><\/h3>\n\n\n<p>La mati\u00e8re poudreuse qui n\u2019a pas \u00e9t\u00e9 touch\u00e9e par le laser peut \u00eatre recycl\u00e9e et r\u00e9utilis\u00e9e, ce qui permet de r\u00e9aliser des \u00e9conomies. La technologie DMLS produit beaucoup moins de d\u00e9chets, compar\u00e9e aux proc\u00e9d\u00e9s d\u2019usinage CNC conventionnels. En effet, ces derniers ont tendance \u00e0 en produire \u00e9norm\u00e9ment, en particulier sous forme de copeaux m\u00e9talliques qui ont \u00e9t\u00e9 arrach\u00e9s au bloc de mati\u00e8re original pour pouvoir fa\u00e7onner l\u2019ouvrage voulu, et qui sont notoirement difficiles \u00e0 recycler.<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-inconvenients-de-la-technologie-3d-dmls\"><strong>Inconv\u00e9nients de la technologie 3D DMLS<\/strong><\/h2>\n\n\n<p>Les avantages de la technologie DMLS mis \u00e0 part, il y a un certain nombre de consid\u00e9rations \u00e0 prendre en compte, surtout quand on effectue la comparaison avec les technologies d\u2019usinage traditionnelles, comme le CNC, qui sont ses plus grandes rivales.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-la-technologie-dmls-necessite-des-structures-de-maintien\"><strong>La technologie DMLS n\u00e9cessite des structures de maintien<\/strong><\/h3>\n\n\n<p>En tant que m\u00e9thode d\u2019impression utilisant des mat\u00e9riaux sous forme poudreuse, les structures de maintien sont malheureusement n\u00e9cessaires et devront donc \u00eatre retir\u00e9es au terme de l\u2019impression, au cours d\u2019une \u00e9tape de post-usinage. La pi\u00e8ce m\u00e9tallique imprim\u00e9e doit \u00eatre consid\u00e9r\u00e9e de la m\u00eame fa\u00e7on qu\u2019une pi\u00e8ce brute au sortir d\u2019un processus d\u2019usinage conventionnel, ce qui signifie que les pi\u00e8ces DMLS ne sont pas pr\u00eates \u00ab cl\u00e9 en main \u00bb et n\u00e9cessitent des traitements additionnels.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><h3 class=\"wp-block-heading\" id=\"h-les-pieces-ont-une-surface-granuleuse\"><strong>Les pi\u00e8ces ont une surface granuleuse<\/strong><\/h3>\n\n\n<p>Les surfaces des pi\u00e8ces imprim\u00e9es \u00e0 l\u2019aide de la technologie DMLS ne seront pas aussi lisses que celles obtenues au travers de <a href=\"https:\/\/xometry.eu\/fr\/usinage-cnc\/\" target=\"_blank\" rel=\"noreferrer noopener\">l\u2019usinage CNC<\/a>. Il faut aussi prendre en compte le fait qu\u2019obtenir le grain de surface d\u00e9sir\u00e9 sera g\u00e9n\u00e9ralement plus difficile, et les traitements post-usinage effectu\u00e9s en vue d\u2019am\u00e9liorer l\u2019esth\u00e9tique de la pi\u00e8ce auront in\u00e9vitablement des r\u00e9percussions sur les co\u00fbts de fabrication.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large is-resized\"><div class=\"wp-block-image__wrap\"><img decoding=\"async\" width=\"1024\" height=\"789\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Grainy-structure-of-DMLS-1024x789.jpg\" alt=\"Grainy structure of DMLS\" class=\"wp-image-1815\" style=\"max-width:295px;max-height:227px\" srcset=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Grainy-structure-of-DMLS-1024x789.jpg 1024w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Grainy-structure-of-DMLS-300x231.jpg 300w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Grainy-structure-of-DMLS-768x592.jpg 768w, https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Grainy-structure-of-DMLS.jpg 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Grainy-structure-of-DMLS.jpg\" data-fancybox=\"gallery-23539\" data-caption=\"Structure granuleuse d\u2019une pi\u00e8ce DMLS\" aria-label=\"Ouvrir l&#039;image compl\u00e8te\"><img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/09\/Grainy-structure-of-DMLS.jpg\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\"><svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n               <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"\/>\r\n             <\/svg><\/a><\/div><figcaption class=\"wp-element-caption\">Structure granuleuse d\u2019une pi\u00e8ce DMLS<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-les-pieces-dmls-produites-en-serie-reviennent-cher\"><strong>Les pi\u00e8ces DMLS produites en s\u00e9rie reviennent cher<\/strong><\/h3>\n\n\n<p>La facilit\u00e9 \u00e0 passer sur une production de masse est encore aujourd\u2019hui un facteur d\u00e9terminant quand il s\u2019agit de prendre une d\u00e9cision quant \u00e0 la m\u00e9thode de fabrication \u00e0 utiliser, et malheureusement, sur cette partie, l\u2019impression DMLS est consid\u00e9rablement \u00e0 la tra\u00eene compar\u00e9e aux proc\u00e9d\u00e9s traditionnels. De plus, en termes de vitesse d\u2019assemblage, les imprimantes 3D ne sont pas de taille face \u00e0 une ligne de production classique. C\u2019est pourquoi l\u2019impression DMLS est principalement recommand\u00e9e pour une production unitaire ou pour des lots de taille r\u00e9duite.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-un-choix-limite-de-materiaux\"><strong>Un choix limit\u00e9 de mat\u00e9riaux<\/strong><\/h3>\n\n\n<p>Dans le cadre de l\u2019impression 3D m\u00e9tal, la s\u00e9lection de mat\u00e9riaux disponibles est g\u00e9n\u00e9ralement plus r\u00e9duite, ce qui peut conduire \u00e0 choisir d\u2019autres m\u00e9thodes de fabrication, en particulier pour des ouvrages n\u00e9cessitant certains mat\u00e9riaux sp\u00e9cifiques. C\u2019est une limitation \u00e0 prendre en compte, qu\u2019il faudra mettre en balance avec les propri\u00e9t\u00e9s techniques exig\u00e9es par le produit.<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-un-volume-d-ouvrage-limite\"><strong>Un volume d\u2019ouvrage limit\u00e9<\/strong><\/h3>\n\n\n<p>Quand il s\u2019agit de fabriquer des ouvrages volumineux, l\u2019usinage CNC s\u2019av\u00e8rera presque toujours \u00eatre une meilleure option. \u00c0 titre d\u2019exemple, la taille standard recommand\u00e9e d\u2019une pi\u00e8ce imprim\u00e9e <a href=\"https:\/\/xometry.eu\/fr\/impression-3d-frittage-laser-direct-de-metal-dmls\/\" target=\"_blank\" rel=\"noreferrer noopener\">DMLS<\/a> est de 250 mm x 250 mm x 325 mm, tandis que pour <a href=\"https:\/\/xometry.eu\/fr\/usinage-cnc\/\">l\u2019usinage CNC<\/a>, on pourra aller jusqu\u2019\u00e0 2000 mm x 800 mm x 1000 mm. La comparaison est sans appel, et montre clairement les limitations de l\u2019impression 3D d\u00e8s qu\u2019il faut faire fabriquer un ouvrage cons\u00e9quent (limitations ici dues \u00e0 la taille de la plateforme d\u2019impression)<\/p>\n\n\n<h3 class=\"wp-block-heading\" id=\"h-tassement-et-repetabilite\"><strong>Tassement et r\u00e9p\u00e9tabilit\u00e9<\/strong><\/h3>\n\n\n<p>Il est extr\u00eamement difficile de produire plusieurs pi\u00e8ces rigoureusement identiques avec la technologie DMLS, en raison d\u2019un ph\u00e9nom\u00e8ne naturel de tassement subi par les pi\u00e8ces imprim\u00e9es. On estime que sur une dizaine de pi\u00e8ces identiques imprim\u00e9es, il y aura au moins 2% de d\u00e9viation le long de l\u2019axe Z. Le tassement qui en r\u00e9sulte entra\u00eene des variations dimensionnelles dont l\u2019origine est triple : la contraction thermique, le tassement du frittage et une expansion se produisant \u00e0 cause de la chute des particules m\u00e9talliques au cours du proc\u00e9d\u00e9.<\/p>\n\n\n    <section class=\"article-slider-block\">\r\n        <div class=\"article-content-wrapper\">\r\n            <!-- Swiper -->\r\n            <div class=\"swiper mySwiper2 article-slider-display\">\r\n                <div class=\"swiper-wrapper\">\r\n                                                <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/08\/DMLS-AlSi10Mg-Front-1.jpg\" alt=\"\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/08\/DMLS-AlSi10Mg-Front-1.jpg\" data-fancybox=\"gallery\" data-caption=\"DMLS, AlSi10Mg, tel qu&rsquo;imprim\u00e9\" aria-label=\"Open full image\">\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/08\/DMLS-AlSi10Mg-Front-1.jpg\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\">\r\n                                        <svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n                                            <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>DMLS, AlSi10Mg, tel qu&rsquo;imprim\u00e9<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                                        <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/08\/DMLS-AlSi10Mg-Side.jpg\" alt=\"\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/08\/DMLS-AlSi10Mg-Side.jpg\" data-fancybox=\"gallery\" data-caption=\"DMLS, AlSi10Mg, tel qu&rsquo;imprim\u00e9\" aria-label=\"Open full image\">\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/08\/DMLS-AlSi10Mg-Side.jpg\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\">\r\n                                        <svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n                                            <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>DMLS, AlSi10Mg, tel qu&rsquo;imprim\u00e9<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                                        <div class=\"swiper-slide\">\r\n                                <div class=\"wp-block-image__wrap\">\r\n                                    <img decoding=\"async\"  src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/08\/DMLS-AlSi10Mg-Macro.jpg\" alt=\"\"\r\n                                    >\r\n                                    <a class=\"wp-block-image__fancy-box-button\" href=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/08\/DMLS-AlSi10Mg-Macro.jpg\" data-fancybox=\"gallery\" data-caption=\"DMLS, AlSi10Mg, tel qu&rsquo;imprim\u00e9\" aria-label=\"Open full image\">\r\n                                        <img src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/08\/DMLS-AlSi10Mg-Macro.jpg\" class=\"wp-block-image__fancy-box-button-thumbnail wp-post-image\" alt=\"\" loading=\"lazy\" decoding=\"async\">\r\n                                        <svg class=\"wp-block-image__fancy-box-button-icon\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" aria-hidden=\"true\">\r\n                                            <path d=\"M0 2V6H2V2H6V0H2C0.895 0 0 0.895 0 2ZM2 12H0V16C0 17.105 0.895 18 2 18H6V16H2V12ZM16 16H12V18H16C17.105 18 18 17.105 18 16V12H16V16ZM16 0H12V2H16V6H18V2C18 0.895 17.105 0 16 0Z\" fill=\"#092C47\"><\/path>\r\n                                        <\/svg>\r\n                                    <\/a>\r\n                                <\/div>\r\n                                <div class=\"article-slider-text\">\r\n                                    <p>DMLS, AlSi10Mg, tel qu&rsquo;imprim\u00e9<\/p>\n                                <\/div>\r\n                            <\/div>\r\n                            \r\n                                            <\/div>\r\n            <\/div>\r\n            <div thumbsSlider=\"\" class=\"swiper mySwiper article-slider-list\">\r\n                <div class=\"swiper-wrapper\">\r\n                                            <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/08\/DMLS-AlSi10Mg-Front-1.jpg\" alt=\"\">\r\n                        <\/div>\r\n                                                <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/08\/DMLS-AlSi10Mg-Side.jpg\" alt=\"\">\r\n                        <\/div>\r\n                                                <div class=\"swiper-slide\">\r\n                            <img decoding=\"async\" src=\"https:\/\/xometry.pro\/wp-content\/uploads\/2023\/08\/DMLS-AlSi10Mg-Macro.jpg\" alt=\"\">\r\n                        <\/div>\r\n                                        <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/section>\r\n    \n\n<h2 class=\"wp-block-heading\" id=\"h-services-d-impression-3d-dmls-de-xometry\"><strong>Services d\u2019impression 3D DMLS de Xometry<\/strong><\/h2>\n\n\n<p>Xometry Europe offre des <a href=\"https:\/\/xometry.eu\/fr\/impression-3d-frittage-laser-direct-de-metal-dmls\/\" target=\"_blank\" rel=\"noreferrer noopener\">services en ligne d\u2019impression 3D DMLS<\/a> pour vos projets d\u2019impression 3D \u00e0 la demande. Fort d\u2019un r\u00e9seau de plus de 2000 ateliers partenaires, r\u00e9partis dans toute l\u2019Europe, Xometry se fait fort de vous livrer vos pi\u00e8ces imprim\u00e9es en DMLS dans un d\u00e9lai de 3 \u00e0 5 jours. Importez vos fichiers CAO sur notre <a href=\"https:\/\/get.xometry.eu\/?locale=fr\" target=\"_blank\" rel=\"noreferrer noopener\">plateforme de devis instantan\u00e9<\/a> pour obtenir un devis en quelques secondes et profitez des diff\u00e9rentes options disponibles pour l\u2019impression 3D DMLS.<\/p>\n","protected":false},"author":50,"featured_media":8232,"comment_status":"open","ping_status":"closed","template":"","categories":[],"c-tag-articles":[],"global-tag":[485],"class_list":["post-23539","articles","type-articles","status-publish","has-post-thumbnail","hentry","global-tag-impression-3d"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Technologie d&#039;impression 3D m\u00e9tal DMLS | Xometry Pro<\/title>\n<meta name=\"description\" content=\"Tout ce que vous devez savoir sur la technologie DMLS : fonctionnement, mat\u00e9riaux compatibles, 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