{"id":80444,"date":"2026-03-16T13:02:31","date_gmt":"2026-03-16T12:02:31","guid":{"rendered":"https:\/\/www.he-arc.ch\/?post_type=he-arc_work&#038;p=80444"},"modified":"2026-03-18T10:22:18","modified_gmt":"2026-03-18T09:22:18","slug":"grissa-taieb","status":"publish","type":"he-arc_work","link":"https:\/\/www.he-arc.ch\/en\/projets-etudiants\/grissa-taieb\/","title":{"rendered":"GRISSA Taieb"},"content":{"rendered":"\n<p>Dans le cadre de l\u2019optimisation de la finition de surfaces d\u2019implants m\u00e9dicaux imprim\u00e9s en 3D, ce projet a \u00e9valu\u00e9 trois proc\u00e9d\u00e9s de post-finition appliqu\u00e9s \u00e0 une proth\u00e8se du lunatum en titane (Ti6Al<sub>4<\/sub>V Grade 23), utilis\u00e9e contre la maladie de Kienb\u00f6ck.<\/p>\n\n\n\n<p>L\u2019objectif \u00e9tait de r\u00e9duire la rugosit\u00e9 moyenne sous 0,5 \u03bcm, avec un bon \u00e9tat de surface et un processus reproductible.<\/p>\n\n\n\n<p>Les pi\u00e8ces issues du proc\u00e9d\u00e9 SLM pr\u00e9sentent une forte rugosit\u00e9 (jusqu\u2019\u00e0 19,1 \u03bcm) difficile \u00e0 corriger, notamment dans les zones complexes.<\/p>\n\n\n\n<p>Trois m\u00e9thodes ont \u00e9t\u00e9 compar\u00e9es : polissage manuel (Ra \u2245 0,15 \u03bcm), tribofinition fond tournant chez Forplan (Ra \u2245 0,24 \u03bcm) et un proc\u00e9d\u00e9 hybride combinant tribofinition fond tournant (9 h) et finition magn\u00e9tique (2 h).<\/p>\n\n\n\n<p>Ce dernier a permis d\u2019atteindre une rugosit\u00e9 de surface moyenne de 0,47 \u03bcm sans micro-rayures.<\/p>\n\n\n\n<p>Ce proc\u00e9d\u00e9 hybride, efficace et industrialisable, est recommand\u00e9.<\/p>\n\n\n\n<p>Des am\u00e9liorations futures concernent le choix des m\u00e9dias, l\u2019orientation d\u2019impression et le nettoyage post-traitement.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><a href=\"https:\/\/www.he-arc.ch\/wp-content\/uploads\/2026\/03\/25MIC-TB470_Grissa_Taieb.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Poster du travail de bachelor de Taieb Grissa<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"492\" height=\"405\" src=\"https:\/\/www.he-arc.ch\/wp-content\/uploads\/2026\/03\/25MIC-TB470_Grissa_Taieb.png\" alt=\"\" class=\"wp-image-79883\" style=\"width:361px;height:auto\" srcset=\"https:\/\/www.he-arc.ch\/wp-content\/uploads\/2026\/03\/25MIC-TB470_Grissa_Taieb.png 492w, https:\/\/www.he-arc.ch\/wp-content\/uploads\/2026\/03\/25MIC-TB470_Grissa_Taieb-300x247.png 300w\" sizes=\"(max-width: 492px) 100vw, 492px\" \/><\/figure>\n","protected":false},"author":63,"featured_media":79883,"template":"","he-arc_domain":[3],"he-arc_training_branch":[50],"he-arc_training_orientation":[57],"he-arc_training_level":[58],"he-arc_project_year":[111],"class_list":["post-80444","he-arc_work","type-he-arc_work","status-publish","has-post-thumbnail","hentry","he-arc_domain-ingenierie","he-arc_training_branch-microtechniques","he-arc_training_orientation-ingenierie-biomedicale","he-arc_training_level-travail-de-bachelor","he-arc_project_year-111"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>GRISSA Taieb - Haute-Ecole Arc<\/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.he-arc.ch\/en\/projets-etudiants\/grissa-taieb\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"GRISSA Taieb - Haute-Ecole Arc\" \/>\n<meta property=\"og:description\" content=\"Dans le cadre de l\u2019optimisation de la finition de surfaces d\u2019implants m\u00e9dicaux imprim\u00e9s en 3D, ce projet a \u00e9valu\u00e9 trois proc\u00e9d\u00e9s de post-finition appliqu\u00e9s \u00e0 une proth\u00e8se du lunatum en titane (Ti6Al4V Grade 23), utilis\u00e9e contre la maladie de Kienb\u00f6ck. 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