{"id":40189,"date":"2026-11-02T09:00:00","date_gmt":"2026-11-02T08:00:00","guid":{"rendered":"https:\/\/ggba.swiss\/?p=40189"},"modified":"2026-11-02T08:42:07","modified_gmt":"2026-11-02T07:42:07","slug":"le-csem-et-almatech-mettent-au-point-un-amortisseur-reutilisable-imprime-en-3d","status":"publish","type":"post","link":"https:\/\/ggba.swiss\/fr\/le-csem-et-almatech-mettent-au-point-un-amortisseur-reutilisable-imprime-en-3d\/","title":{"rendered":"Le CSEM et Almatech mettent au point un amortisseur r\u00e9utilisable imprim\u00e9 en 3D"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Le <a href=\"https:\/\/www.csem.ch\/fr\">CSEM<\/a> et <a href=\"https:\/\/almatech.ch\/\">Almatech<\/a> ont pr\u00e9sent\u00e9 un amortisseur r\u00e9utilisable pour train d&rsquo;atterrissage dans le cadre de RESHAPE, un projet soutenu par l&rsquo;<a href=\"https:\/\/www.esa.int\/fr\">Agence spatiale europ\u00e9enne<\/a> (ESA). L&rsquo;amortisseur est imprim\u00e9 en 3D dans un alliage \u00e0 m\u00e9moire de forme nickel-titane et destin\u00e9 aux futurs atterrisseurs lunaires et plan\u00e9taires.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Du mat\u00e9riau \u00e0 la conception \u00e0 grande \u00e9chelle<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Le CSEM a pilot\u00e9 le projet du concept \u00e0 la d\u00e9monstration. Ses \u00e9quipes ont s\u00e9lectionn\u00e9 et affin\u00e9 les g\u00e9om\u00e9tries de r\u00e9seaux, mis au point les param\u00e8tres de fabrication de r\u00e9seaux fins en nickel-titane, produits par fusion laser sur lit de poudre, un proc\u00e9d\u00e9 qui exige un contr\u00f4le rigoureux, et r\u00e9alis\u00e9 des essais quasi statiques, d&rsquo;impact \u00e0 grande vitesse et de r\u00e9utilisation. Almatech s&rsquo;est appuy\u00e9e sur ces donn\u00e9es pour analyser le syst\u00e8me de jambes d&rsquo;atterrissage et traduire le comportement du mat\u00e9riau \u00e0 l&rsquo;\u00e9chelle du laboratoire en une conception d&rsquo;amortisseur \u00e0 grande \u00e9chelle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vaclav Pejchal, Material &amp; Technology Expert au CSEM, explique que RESHAPE d\u00e9montre que les structures en r\u00e9seau d&rsquo;alliage \u00e0 m\u00e9moire de forme peuvent offrir une absorption des chocs pr\u00e9visible et r\u00e9utilisable, et que l&rsquo;association de ces alliages \u00e0 la fabrication additive permet de repenser des composants rest\u00e9s largement inchang\u00e9s depuis des d\u00e9cennies. Le Dr Fabrice Rottmeier, Chief Technology Officer d&rsquo;Almatech, qualifie la collaboration de tr\u00e8s positive : l&rsquo;expertise technologique du CSEM et l&rsquo;ing\u00e9nierie spatiale d&rsquo;Almatech permettent de transformer des id\u00e9es en solutions pour les missions spatiales.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Regardez notre <a href=\"https:\/\/www.youtube.com\/watch?v=q4OSD2cBcoU\">\u00e9pisode de Getting Serious<\/a> avec le CEO du CSEM, le Dr Alexandre Pauchard, qui analyse les fondements du leadership suisse en mati\u00e8re d&rsquo;innovation et les risques li\u00e9s au financement du scale-up.<\/p>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Switzerland Is #1 in Innovation, But for How Long? (A Conversation with Alexandre Pauchard)\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/q4OSD2cBcoU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Dans le projet RESHAPE soutenu par l&rsquo;ESA, le CSEM et Almatech ont mis au point un amortisseur r\u00e9utilisable en alliage \u00e0 m\u00e9moire de forme imprim\u00e9 en 3D, con\u00e7u pour rendre les futurs atterrisseurs lunaires et plan\u00e9taires plus l\u00e9gers, plus simples et plus durables.<\/p>\n","protected":false},"author":6,"featured_media":40186,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"mc4wp_mailchimp_campaign":[],"footnotes":""},"categories":[845],"tags":[1197,1142,1189],"class_list":["post-40189","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech","tag-engineering-fr-2","tag-rd-fr-2","tag-space-fr-2"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Le CSEM con\u00e7oit un amortisseur spatial r\u00e9utilisable | GGBa<\/title>\n<meta name=\"description\" content=\"Le CSEM a mis au point un amortisseur en alliage \u00e0 m\u00e9moire de forme imprim\u00e9 en 3D pour de futurs atterrisseurs lunaires.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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