{"id":1726,"date":"2021-12-29T13:14:05","date_gmt":"2021-12-29T13:14:05","guid":{"rendered":"https:\/\/novanta.com\/fr\/precision-manufacturing\/resources\/whitepapers\/micro-usinage-de-haute-qualite\/"},"modified":"2026-09-02T11:02:17","modified_gmt":"2026-09-02T11:02:17","slug":"micro-usinage-de-haute-qualite","status":"publish","type":"novanta_tech_paper","link":"https:\/\/novanta.com\/fr\/precision-manufacturing\/ressources\/documents-blancs\/micro-usinage-de-haute-qualite\/","title":{"rendered":"Micro-usinage de haute qualit\u00e9"},"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<h3 class=\"wp-block-heading\" id=\"h-high-quality-micro-processing-with-picosecond-lasers\"><strong>Micro-usinage de haute qualit\u00e9 avec des lasers picosecondes<\/strong><br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><em>C&rsquo;est la circularit\u00e9 du faisceau sur toute la profondeur de champ, et non la puissance, qui d\u00e9termine la qualit\u00e9 du micro-usinage.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans le micro-usinage \u00e0 rapport d&rsquo;aspect \u00e9lev\u00e9 \u2014 per\u00e7age de trous de passage dans les circuits imprim\u00e9s, les substrats en verre, les cartes de sondes, l&rsquo;acier inoxydable \u2014, toute imperfection du faisceau focalis\u00e9 s&rsquo;amplifie sur toute la profondeur de la coupe. Les trous asym\u00e9triques, les parois coniques, les microfissures dans les mat\u00e9riaux fragiles et la rugosit\u00e9 de surface n\u00e9cessitant un post-traitement ne sont pas des probl\u00e8mes li\u00e9s \u00e0 la puissance du laser. Il s\u2019agit de probl\u00e8mes li\u00e9s \u00e0 la qualit\u00e9 du faisceau sur toute la profondeur, qui varient en fonction du rapport d\u2019aspect.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cet article technique explique comment le laser picoseconde Dart 8 de Novanta, associ\u00e9 \u00e0 la t\u00eate de balayage multiaxiale PRECESSION ELEPHANT, offre une rondeur du faisceau sup\u00e9rieure \u00e0 93 % maintenue sur \u00b13 longueurs de Rayleigh \u2014 permettant ainsi de r\u00e9aliser des trous de passage de 200 \u00b5m sans conicit\u00e9 dans l\u2019acier inoxydable et dans du verre de 0,7 mm, avec des diam\u00e8tres d\u2019entr\u00e9e et de sortie concordant \u00e0 moins de 0,5 \u00b5m, et des parois suffisamment lisses pour \u00e9liminer tout post-traitement.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-key-takeaways-include\">Points cl\u00e9s \u00e0 retenir :<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pourquoi la rondeur du faisceau sur toute la profondeur de champ \u2014 et non le point focal sur un seul plan \u2014 d\u00e9termine la qualit\u00e9 du micro-usinage<\/li>\n\n\n\n<li>Comment des impulsions de 8 picosecondes permettent de maintenir la zone affect\u00e9e thermiquement (HAZ) \u00e0 un niveau suffisamment bas pour \u00e9viter les microfissures dans le verre<\/li>\n\n\n\n<li>Quand privil\u00e9gier les t\u00eates de balayage multiaxiales (X\/Y\/Z + inclinaison) : trous coniques, angles de paroi \u00e0 90\u00b0, contre-d\u00e9pouilles<\/li>\n\n\n\n<li>Quelle int\u00e9gration est importante : Dart + PRECESSION ELEPHANT provenant d\u2019un seul fournisseur avec un alignement optique coordonn\u00e9<\/li>\n\n\n\n<li>Une g\u00e9om\u00e9trie de r\u00e9f\u00e9rence pratique : des trous de passage de 200 \u00b5m avec une diff\u00e9rence de diam\u00e8tre entre l\u2019entr\u00e9e et la sortie inf\u00e9rieure \u00e0 0,5 \u00b5m<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e9l\u00e9chargez le document technique complet pour obtenir le profil de circularit\u00e9 du faisceau Dart sur \u00b13 longueurs de Rayleigh, des images c\u00f4te \u00e0 c\u00f4te de trous de passage dans l\u2019acier inoxydable et le verre, ainsi que la justification de l\u2019int\u00e9gration du sous-syst\u00e8me Novanta combinant laser picoseconde et t\u00eate de balayage \u2014 avant de choisir des composants non adapt\u00e9s qui limiteraient la qualit\u00e9 de votre micro-usinage.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pr\u00e9sentation de l&rsquo;article technique Micro-usinage de haute qualit\u00e9 avec des lasers picosecondes C&rsquo;est la circularit\u00e9 du faisceau sur toute la profondeur de champ, et non la puissance, qui d\u00e9termine la qualit\u00e9 du micro-usinage. Dans le micro-usinage \u00e0 rapport d&rsquo;aspect \u00e9lev\u00e9 \u2014 per\u00e7age de trous de passage dans les circuits imprim\u00e9s, les substrats en verre, les [&hellip;]<\/p>\n","protected":false},"author":342,"featured_media":340,"template":"","meta":{"_acf_changed":false,"card_thumbnail_id":0,"show_table_of_content":true},"class_list":["post-1726","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>High-Quality Micro-Processing | Novanta Laser Solutions<\/title>\n<meta name=\"description\" content=\"Ce livre blanc pr\u00e9sente les facteurs qui permettent d&#039;obtenir des r\u00e9sultats de micro-usinage de haute qualit\u00e9, de la perforation au laser au micro-usinage au laser en passant par le per\u00e7age de pr\u00e9cision au laser.\" \/>\n<meta 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