{"id":1375,"date":"2023-10-03T15:46:51","date_gmt":"2023-10-03T15:46:51","guid":{"rendered":"https:\/\/novanta.com\/fr\/precision-manufacturing\/resources\/whitepapers\/les-defis-lies-a-lintegration-du-laser-a-co%e2%82%82-et-du-sous-systeme-de-tete-de-balayage\/"},"modified":"2026-09-02T11:01:57","modified_gmt":"2026-09-02T11:01:57","slug":"les-defis-lies-a-lintegration-du-laser-co%e2%82%82-et-du-sous-systeme-de-tete-de-balayage","status":"publish","type":"novanta_tech_paper","link":"https:\/\/novanta.com\/fr\/precision-manufacturing\/ressources\/documents-blancs\/les-defis-lies-a-lintegration-du-laser-co%e2%82%82-et-du-sous-systeme-de-tete-de-balayage\/","title":{"rendered":"Les d\u00e9fis li\u00e9s \u00e0 l&rsquo;int\u00e9gration du laser CO\u2082 et du sous-syst\u00e8me de t\u00eate de balayage"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"h-technical-paper-overview\">Pr\u00e9sentation de l&rsquo;article technique<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Les d\u00e9fis li\u00e9s \u00e0 l&rsquo;int\u00e9gration du laser CO\u2082 et du sous-syst\u00e8me de t\u00eate de balayage<\/strong><br><em>Ce sont les performances du sous-syst\u00e8me, et non les sp\u00e9cifications des composants, qui d\u00e9terminent les r\u00e9sultats en atelier de production.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un laser CO\u2082 est choisi pour ses performances en mati\u00e8re d\u2019impulsions, sa puissance de sortie et sa longueur d\u2019onde. Une t\u00eate de balayage est choisie pour la taille du champ, la taille du spot, la vitesse et la pr\u00e9cision. Chaque composant est sp\u00e9cifi\u00e9 s\u00e9par\u00e9ment. Or, le r\u00e9sultat obtenu en production d\u00e9pend de la mani\u00e8re dont ces deux <em>\u00e9l\u00e9ments interagissent<\/em>: de l\u2019adaptation des faisceaux optiques, de l\u2019alignement m\u00e9canique et de l\u2019int\u00e9gration \u00e9lectrique, \u00e9l\u00e9ments qu\u2019aucune fiche technique ne d\u00e9crit \u00e0 elle seule.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cet article technique r\u00e9dig\u00e9 par trois auteurs de Novanta (Daniel Schue, Justin Conroy, Malte Hemmerich) documente le probl\u00e8me d\u2019int\u00e9gration : pourquoi un rapport de 1,5 entre l\u2019ouverture libre de la t\u00eate de balayage et le diam\u00e8tre du faisceau 1\/e\u00b2 du laser constitue le point optimal, pourquoi la transmission par fibre optique devient inefficace au-del\u00e0 de 30 W pour le laser CO\u2082, et comment les plaques de base Synrad pr\u00e9-align\u00e9es de Novanta, dot\u00e9es de pieds de montage \u00e0 cale ou \u00e0 cales d\u2019ajustement, remplacent le processus traditionnel de r\u00e9f\u00e9rence d\u2019alignement \u00e0 deux miroirs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-key-takeaways-include\">Parmi les points cl\u00e9s \u00e0 retenir, on peut citer :<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pourquoi les performances d\u2019un sous-syst\u00e8me constituent un probl\u00e8me d\u2019ing\u00e9nierie distinct de la s\u00e9lection des composants \u2014 et ce que les fiches techniques omettent d\u2019indiquer<\/li>\n\n\n\n<li>Comment un rapport de 1,5\u00d7 entre l\u2019ouverture libre de la t\u00eate de balayage et le diam\u00e8tre du faisceau laser 1\/e\u00b2 permet de d\u00e9livrer 99 % de l\u2019\u00e9nergie sans anneaux de diffraction<\/li>\n\n\n\n<li>Quand la transmission par fibre optique ne convient plus au CO\u2082 : au-del\u00e0 d\u2019une puissance laser d\u2019environ 30 W, l\u2019optique en espace libre devient incontournable<\/li>\n\n\n\n<li>Ce que remplace l\u2019approche des sous-syst\u00e8mes pr\u00e9-align\u00e9s de Novanta : le processus traditionnel d\u2019alignement \u00e0 deux miroirs et deux cibles<\/li>\n\n\n\n<li>Un choix pratique concernant les pieds de montage : \u00e0 cales (discrets) ou \u00e0 cales en coin (continus, plus pr\u00e9cis)<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" id=\"h-\">T\u00e9l\u00e9chargez le document technique complet pour d\u00e9couvrir les calculs math\u00e9matiques de l\u2019adaptation de l\u2019ouverture gaussienne, la technique d\u2019alignement par \u00e9cran au phosphore et la comparaison entre les pieds de montage \u00e0 cales d\u2019\u00e9paisseur et \u00e0 cales coniques \u2014 ainsi que l\u2019architecture du sous-syst\u00e8me Novanta (laser + t\u00eate de balayage + contr\u00f4leur ScanMaster).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pr\u00e9sentation de l&rsquo;article technique Les d\u00e9fis li\u00e9s \u00e0 l&rsquo;int\u00e9gration du laser CO\u2082 et du sous-syst\u00e8me de t\u00eate de balayageCe sont les performances du sous-syst\u00e8me, et non les sp\u00e9cifications des composants, qui d\u00e9terminent les r\u00e9sultats en atelier de production. Un laser CO\u2082 est choisi pour ses performances en mati\u00e8re d\u2019impulsions, sa puissance de sortie et sa [&hellip;]<\/p>\n","protected":false},"author":342,"featured_media":329,"template":"","meta":{"_acf_changed":false,"card_thumbnail_id":0,"show_table_of_content":true},"class_list":["post-1375","novanta_tech_paper","type-novanta_tech_paper","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.1 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>CO2 Laser &amp; Scan Head Integration | Novanta<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez les d\u00e9fis li\u00e9s \u00e0 l&#039;int\u00e9gration d&#039;un syst\u00e8me de d\u00e9coupe au laser CO\u2082, de t\u00eates de balayage laser et d&#039;\u00e9largisseurs de faisceau, ainsi que la mani\u00e8re dont les ing\u00e9nieurs de Novanta les rel\u00e8vent.\" \/>\n<meta name=\"robots\" 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