{"id":34982,"date":"2022-08-12T13:43:23","date_gmt":"2022-08-12T17:43:23","guid":{"rendered":"https:\/\/www.mastercam.com\/news\/blog\/quelle-est-la-difference-entre-la-cao-fao-et-limpression-3d\/"},"modified":"2025-12-17T14:59:26","modified_gmt":"2025-12-17T19:59:26","slug":"quelle-est-la-difference-entre-la-cao-fao-et-limpression-3d","status":"publish","type":"post","link":"https:\/\/www.mastercam.com\/fr\/community\/blog\/quelle-est-la-difference-entre-la-cao-fao-et-limpression-3d\/","title":{"rendered":"Quelle est la diff\u00e9rence entre la CAO\/FAO et l&rsquo;impression 3D ?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Code CN, machines \u00e0 commande num\u00e9rique, Code G, logiciel de CAO, logiciel de FAO, impression 3D &#8211; m\u00eame une plong\u00e9e rapide dans l&rsquo;industrie manufacturi\u00e8re vous bombardera de termes comme ceux-ci. Mais que signifient-ils et sont-ils li\u00e9s ? Ce blog analyse trois des termes les plus couramment utilis\u00e9s dans les milieux de la production aujourd&rsquo;hui : CAO, FAO et impression 3D. Tout d&rsquo;abord, d\u00e9finissons ces trois termes :   <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>CAO :<\/strong> conception assist\u00e9e par ordinateur ; logiciel permettant de cr\u00e9er des mod\u00e8les virtuels de pi\u00e8ces et d&rsquo;assemblages de pi\u00e8ces qui seront ensuite fabriqu\u00e9s.<\/li>\n\n\n\n<li><strong>FAO : <\/strong>fabrication assist\u00e9e par ordinateur ; logiciel qui dirige la fabrication effective de la ou des pi\u00e8ces en communiquant avec une machine de fabrication \u00e0 commande num\u00e9rique (CN).<\/li>\n\n\n\n<li><strong>Impression 3D :<\/strong> processus de construction de pi\u00e8ces par la pose de mat\u00e9riaux sur une base ou sur d&rsquo;autres mat\u00e9riaux selon un mouvement pr\u00e9d\u00e9termin\u00e9.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">Mais il ne suffit pas de conna\u00eetre leurs d\u00e9finitions. Examinons les relations entre ces concepts. <\/p>\n\n<h2 class=\"wp-block-heading\">La CAO et la FAO travaillent ensemble<\/h2>\n\n<p class=\"wp-block-paragraph\">La CAO et la FAO sont utilis\u00e9es en tandem, mais il s&rsquo;agit de deux types de logiciels distincts. <a href=\"https:\/\/www.mastercam.com\/fr\/news\/blog\/5-fonctions-cao-de-mastercam-que-vous-devez-connaitre\/\">La CAO a \u00e9t\u00e9 cr\u00e9\u00e9e<\/a> pour automatiser le d\u00e9pouillement des produits. Elle est souvent utilis\u00e9e par les Designers pour cr\u00e9er des rendus et des dessins de mod\u00e8les. Ces rendus peuvent indiquer la taille, la texture, la forme, le mat\u00e9riau et l&rsquo;aspect g\u00e9n\u00e9ral de la pi\u00e8ce design\u00e9e.  <\/p>\n\n<p class=\"wp-block-paragraph\">Au lieu de dessiner \u00e0 la main de multiples diagrammes en deux dimensions, de s&rsquo;assurer que toutes les mesures sont correctes, de conserver soigneusement les copies afin de ne rien d\u00e9truire accidentellement et d&rsquo;esp\u00e9rer que rien ne se perde dans la traduction, les concepteurs g\u00e9n\u00e8rent aujourd&rsquo;hui des mod\u00e8les rapidement et facilement dans leurs programmes de CAO.<\/p>\n\n<p class=\"wp-block-paragraph\">Lorsque l&rsquo;on parle de syst\u00e8mes de CAO, les syst\u00e8mes de FAO sont souvent mentionn\u00e9s. Les logiciels de FAO &#8211; ou logiciels d&rsquo;usinage assist\u00e9 par ordinateur &#8211; \u00e9laborent le code CN pour les machines \u00e0 commande num\u00e9rique qui produisent les pi\u00e8ces. Le logiciel planifie et dirige le mouvement des trajectoires d&rsquo;outils afin d&rsquo;obtenir la fabrication la plus efficace possible.  <\/p>\n\n<p class=\"wp-block-paragraph\">Le fraisage, le tournage, le d\u00e9foncage, l&rsquo;estampage des m\u00e9taux, la rectification et la d\u00e9coupe au laser peuvent tous \u00eatre pris en charge par la FAO. Certains syst\u00e8mes de FAO sont accompagn\u00e9s de leur propre syst\u00e8me de CAO afin de rationaliser la conception et la fabrication. <\/p>\n\n<h2 class=\"wp-block-heading\">Impression 3D et CAO\/FAO<\/h2>\n\n<p class=\"wp-block-paragraph\">Alors qu&rsquo;une imprimante \u00e0 encre cr\u00e9e des images en organisant des couches d&rsquo;encre liquide sur du papier, une imprimante 3D cr\u00e9e des objets tridimensionnels en organisant des couches de plastique fondu (ou d&rsquo;autres mat\u00e9riaux) les unes sur les autres. Comme pour toute pi\u00e8ce usin\u00e9e, la production d&rsquo;une pi\u00e8ce imprim\u00e9e en 3D sera d&rsquo;autant plus efficace qu&rsquo;elle aura \u00e9t\u00e9 con\u00e7ue \u00e0 l&rsquo;aide de la CAO. Les imprimantes 3D sont soumises aux instructions contenues dans le mod\u00e8le CAO. Elles utilisent ces donn\u00e9es pour d\u00e9terminer la quantit\u00e9 de mat\u00e9riau \u00e0 d\u00e9poser et l&rsquo;endroit exact o\u00f9 le d\u00e9poser.   <\/p>\n\n<p class=\"wp-block-paragraph\">Apr\u00e8s l&rsquo;impression d&rsquo;une pi\u00e8ce, les ing\u00e9nieurs doivent parfois revenir en arri\u00e8re et usiner la pi\u00e8ce. En effet, l&rsquo;impression 3D n&rsquo;est souvent pas assez pr\u00e9cise pour construire des pi\u00e8ces qui doivent respecter des tol\u00e9rances serr\u00e9es. <\/p>\n\n<p class=\"wp-block-paragraph\">Les pi\u00e8ces imprim\u00e9es en 3D pour l&rsquo;industrie m\u00e9dicale et a\u00e9rospatiale, par exemple, ne sont souvent pas fonctionnelles ou s\u00fbres d\u00e8s leur sortie de l&rsquo;imprimante. Les pi\u00e8ces de ce type doivent \u00eatre reprises dans un programme de CAO pour \u00eatre mod\u00e9lis\u00e9es \u00e0 l&rsquo;\u00e9chelle voulue, puis export\u00e9es vers un programme de FAO afin que l&rsquo;usinage puisse \u00eatre programm\u00e9. En g\u00e9n\u00e9ral, l&rsquo;usinage est rapide et se concentre principalement sur les parcours d&rsquo;outils de finition qui permettent d&rsquo;obtenir des finitions de surface de haute qualit\u00e9.  <\/p>\n\n<p class=\"wp-block-paragraph\">Globalement, la principale diff\u00e9rence entre la <a href=\"https:\/\/www.mastercam.com\/news\/blog\/3-benefits-of-an-integrated-cad-cam-system\/\">CAO\/FAO<\/a> et l&rsquo;impression 3D est que l&rsquo;impression 3D est un processus de fabrication de composants, tandis que la CAO\/FAO est le processus de conception et de fabrication de ces composants.<\/p>\n\n<h2 class=\"wp-block-heading\">Essayez Mastercam<\/h2>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.mastercam.com\/solutions\/learning-edition\/\">T\u00e9l\u00e9chargez d\u00e8s aujourd&rsquo;hui une version d&rsquo;essai gratuite<\/a> de Mastercam pour exp\u00e9rimenter ses capacit\u00e9s de CAO et de FAO.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Code CN, machines \u00e0 commande num\u00e9rique, Code G, logiciel de CAO, logiciel de FAO, impression [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":9466,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[361],"tags":[],"class_list":["post-34982","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-produit"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Quelle est la diff\u00e9rence entre la CAO\/FAO et l&#039;impression 3D ? 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