{"id":7815,"date":"2024-07-04T14:30:15","date_gmt":"2024-07-04T06:30:15","guid":{"rendered":"https:\/\/www.sogaworks.com\/blogs\/"},"modified":"2024-09-02T16:12:14","modified_gmt":"2024-09-02T08:12:14","slug":"cnc-machining-vs-3d-printing","status":"publish","type":"post","link":"https:\/\/www.sogaworks.com\/fr\/blogs\/cnc-machining-vs-3d-printing\/","title":{"rendered":"Usinage CNC ou impression 3D : Quelle est la meilleure solution pour les projets de prototypage rapide ?"},"content":{"rendered":"

Quelle est la meilleure solution pour vos applications de pi\u00e8ces personnalis\u00e9es : l'usinage CNC ou l'impression 3D ? D\u00e9couvrez les distinctions pratiques entre l'impression 3D et l'usinage CNC, ainsi que la mani\u00e8re de choisir la meilleure technologie pour la production de prototypes et de produits finis.<\/p>\n\n\n\n

Une br\u00e8ve introduction \u00e0 l'usinage CNC et \u00e0 l'impression 3D<\/h2>\n\n\n\n

L'usinage CNC est une technologie de fabrication soustractive pr\u00e9pond\u00e9rante, qui utilise divers outils rotatifs pour transformer des blocs de mati\u00e8res premi\u00e8res solides, appel\u00e9s \u00e9bauches, en composants presque finis. R\u00e9put\u00e9 pour sa r\u00e9p\u00e9tabilit\u00e9, sa grande pr\u00e9cision et sa polyvalence dans le traitement de diff\u00e9rents mat\u00e9riaux, l'usinage CNC est une m\u00e9thode privil\u00e9gi\u00e9e tant pour la production \u00e0 petite \u00e9chelle que pour la production en moyenne et grande s\u00e9rie.<\/p>\n\n\n\n

\"\u00c9tapes<\/figure>\n\n\n\n

En revanche, l'impression 3D, qui rel\u00e8ve de la fabrication additive, permet de fabriquer des pi\u00e8ces couche par couche sans avoir recours \u00e0 un outillage ou \u00e0 des dispositifs de fixation sp\u00e9cialis\u00e9s. Cette m\u00e9thode minimise les co\u00fbts d'installation initiaux par rapport \u00e0 l'usinage CNC.<\/p>\n\n\n\n

\"Les<\/figure>\n\n\n\n

Bien que l'usinage CNC et l'impression 3D fonctionnent diff\u00e9remment, leurs applications se recoupent, en particulier dans le domaine des prototypes et des pi\u00e8ces fonctionnelles finales fabriqu\u00e9es \u00e0 partir de divers mat\u00e9riaux tels que les plastiques et les m\u00e9taux. Dans cet article, nous nous penchons sur les principales consid\u00e9rations technologiques qui vous aideront \u00e0 choisir la technologie de fabrication la plus adapt\u00e9e \u00e0 vos pi\u00e8ces personnalis\u00e9es.<\/p>\n\n\n\n

Impression 3D ou usinage CNC : Choisir la bonne technologie de fabrication<\/h2>\n\n\n\n

Plusieurs facteurs entrent en jeu lorsqu'il s'agit de choisir entre l'impression 3D et l'usinage CNC. En r\u00e8gle g\u00e9n\u00e9rale, les pi\u00e8ces facilement fabriqu\u00e9es par un processus soustractif sont g\u00e9n\u00e9ralement produites par usinage CNC. L'usinage CNC offre une pr\u00e9cision dimensionnelle et des propri\u00e9t\u00e9s m\u00e9caniques sup\u00e9rieures dans toutes les dimensions par rapport \u00e0 l'impression 3D, mais \u00e0 un prix potentiellement plus \u00e9lev\u00e9, en particulier pour les petits volumes.<\/p>\n\n\n\n

Sc\u00e9narios optimaux pour l'impression 3D :<\/p>\n\n\n\n

    \n
  • G\u00e9om\u00e9tries tr\u00e8s complexes, optimis\u00e9es sur le plan topologique.<\/li>\n\n\n\n
  • N\u00e9cessit\u00e9 d'un d\u00e9lai d'ex\u00e9cution rapide.<\/li>\n\n\n\n
  • les contraintes budg\u00e9taires (l'impression 3D est g\u00e9n\u00e9ralement plus rentable pour les petits volumes).<\/li>\n\n\n\n
  • Production d'un petit nombre de pi\u00e8ces identiques (moins de 10).<\/li>\n\n\n\n
  • Exigence de mat\u00e9riaux difficiles \u00e0 usiner, tels que le TPU flexible.<\/li>\n<\/ul>\n\n\n\n

    Pour des quantit\u00e9s plus importantes (des centaines ou des milliers de composants), les technologies de formage traditionnelles comme le moulage par injection peuvent \u00eatre plus viables sur le plan \u00e9conomique.<\/p>\n\n\n\n

    Nombre de pi\u00e8ces : Choisir entre l'impression 3D et l'usinage CNC<\/h2>\n\n\n\n

    La quantit\u00e9 de pi\u00e8ces que vous envisagez de produire est d\u00e9terminante dans le processus de d\u00e9cision. Voici une r\u00e9partition en fonction du nombre de pi\u00e8ces et de mat\u00e9riaux :<\/p>\n\n\n\n

    Nombre de pi\u00e8ces<\/th>1-10<\/th>10-100<\/th>100-1000<\/th>1000+<\/th><\/tr>
    Plastique<\/td>Impression 3D<\/td>Impression 3D<\/td>Usinage CNC (envisager le moulage par injection)<\/td>Moulage par injection<\/td><\/tr>
    M\u00e9tal<\/td>Impression 3D et usinage CNC<\/td>Usinage CNC (envisager l'impression 3D)<\/td>Usinage CNC (envisager le moulage sous pression)<\/td>Moulage sous pression<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Comparaison des mat\u00e9riaux : Usinage des m\u00e9taux et impression des mati\u00e8res plastiques<\/h2>\n\n\n\n

    L'usinage CNC travaille principalement avec des m\u00e9taux, mais il est suffisamment souple pour traiter des thermoplastiques, des acryliques, des bois tendres, des bois durs, des mousses de mod\u00e9lisation et de la cire d'usinage. L'impression 3D se concentre sur les thermoplastiques et les thermodurcissables, certaines technologies permettant d'imprimer des m\u00e9taux, des c\u00e9ramiques, de la cire, du sable, des composites et des biomat\u00e9riaux.<\/p>\n\n\n\n

    Usinage CNC Mat\u00e9riaux :<\/p>\n\n\n\n

      \n
    • Plastiques : ABS, nylon, polycarbonate, PEEK<\/li>\n\n\n\n
    • M\u00e9taux : Aluminium, acier inoxydable, titane, laiton<\/li>\n\n\n\n
    • Mat\u00e9riaux d'impression 3D :<\/li>\n\n\n\n
    • Plastiques : Nylon, PLA, ABS, ULTEM, ASA, TPU<\/li>\n\n\n\n
    • M\u00e9taux : Aluminium, acier inoxydable, titane, Inconel<\/li>\n<\/ul>\n\n\n\n

      Fabrication de pi\u00e8ces complexes : Usinage CNC et impression 3D<\/h2>\n\n\n\n

      La complexit\u00e9 de la pi\u00e8ce est un facteur d\u00e9terminant dans le choix entre l'impression 3D et l'usinage CNC. L'usinage CNC pr\u00e9sente des limites de conception li\u00e9es \u00e0 l'acc\u00e8s aux outils, aux d\u00e9gagements et \u00e0 l'impossibilit\u00e9 d'usiner des angles droits. Le repositionnement augmente le temps de traitement et de main-d'\u0153uvre, ce qui peut n\u00e9cessiter l'utilisation de gabarits et de fixations et avoir un impact sur le prix final.<\/p>\n\n\n\n

      En revanche, l'impression 3D pr\u00e9sente moins de limites g\u00e9om\u00e9triques. Bien que des structures de soutien puissent \u00eatre n\u00e9cessaires pour certains processus, la libert\u00e9 de conception et la capacit\u00e9 de complexit\u00e9 l'emportent sur les consid\u00e9rations associ\u00e9es \u00e0 l'usinage CNC.<\/p>\n\n\n\n

      Flux de production : Impression 3D et usinage CNC<\/h2>\n\n\n\n

      Il est essentiel de comprendre les flux de production. L'usinage CNC implique un processus \u00e0 forte intensit\u00e9 de main-d'\u0153uvre, l'op\u00e9rateur de la machine prenant des d\u00e9cisions sur le choix de l'outil, la vitesse de la broche, la trajectoire de coupe et le repositionnement \u00e9ventuel de la pi\u00e8ce. En revanche, l'impression 3D simplifie le processus : l'op\u00e9rateur pr\u00e9pare le fichier num\u00e9rique, choisit l'orientation et laisse l'imprimante se charger du travail de construction avec une intervention humaine minimale.<\/p>\n\n\n\n

      Post-traitement : Impression 3D et usinage CNC<\/h2>\n\n\n\n

      L'impression 3D et l'usinage CNC b\u00e9n\u00e9ficient de m\u00e9thodes de post-traitement pour am\u00e9liorer les qualit\u00e9s fonctionnelles et esth\u00e9tiques. Les techniques courantes de post-traitement comprennent le microbillage, l'anodisation, le rev\u00eatement par poudre pour l'usinage CNC, et le microbillage, le sablage et le polissage, le micro-polissage et le placage m\u00e9tallique pour l'impression 3D.<\/p>","protected":false},"excerpt":{"rendered":"

      Quelle est la meilleure solution pour vos applications de pi\u00e8ces personnalis\u00e9es : l'usinage CNC ou l'impression 3D ? D\u00e9couvrez les distinctions pratiques entre l'impression 3D et l'usinage CNC.<\/p>","protected":false},"author":1,"featured_media":7820,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[1,8],"tags":[27,28,31],"class_list":["post-7815","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3d-printing-categories-blog","category-cnc-machining","tag-automotive-applications","tag-medical-applications","tag-robotics-applications"],"yoast_head":"\nCNC Machining vs 3D Printing: Which is Better for Rapid Prototyping Projects? | SogaWorks<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sogaworks.com\/fr\/blogs\/cnc-machining-vs-3d-printing\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CNC Machining vs 3D Printing: Which is Better for Rapid Prototyping Projects? | SogaWorks\" \/>\n<meta property=\"og:description\" content=\"Which is better for your customized part applications, CNC machining or 3D printing? 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