{"id":6613,"date":"2023-09-01T00:00:00","date_gmt":"2023-08-31T22:00:00","guid":{"rendered":"https:\/\/micronora-informations.fr\/?p=4922"},"modified":"2023-09-01T00:00:00","modified_gmt":"2023-08-31T22:00:00","slug":"des-mousses-daluminium-pour-mars","status":"publish","type":"post","link":"https:\/\/micronora.com\/en\/des-mousses-daluminium-pour-mars\/","title":{"rendered":"Des mousses d\u2019aluminium pour Mars"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/micronora.com\/wp-content\/uploads\/2023\/08\/162-034-001.jpg\" alt=\"Les mousses d'aluminium produites par fonderie sont destin\u00e9es \u00e0 prot\u00e9ger les panneaux solaires de l\u2019astromobile du programme japonais MMX (Martian Moons eXploration ou exploration des lunes de Mars). Source\u00a0: CNES\" class=\"wp-image-4816\"\/><figcaption class=\"wp-element-caption\">Les mousses d&#8217;aluminium produites par fonderie sont destin\u00e9es \u00e0 prot\u00e9ger les panneaux solaires de l\u2019astromobile du programme japonais MMX (Martian Moons eXploration ou exploration des lunes de Mars). Source\u00a0: CNES<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Le CNES (Centre National d\u2019\u00c9tudes Spatiales) et le DLR (Deutsches Zentrum f\u00fcr Luft- und Raunmfahrt) centre spatial allemand ont confi\u00e9 aux \u00e9quipes de l&#8217;ex-Centre Technique des Industries de la Fonderie (CTIF), d\u00e9sormais partie int\u00e9grante du Cetim (Centre Technique des Industries M\u00e9caniques), la mission de produire par fonderie des mousses d&#8217;aluminium. Ces derni\u00e8res sont destin\u00e9es \u00e0 prot\u00e9ger les panneaux solaires de l\u2019astromobile (Rover) du programme japonais MMX (Martian Moons eXploration ou exploration des lunes de Mars). Ce dernier sera largu\u00e9 sur le sol de Phobos en 2026&nbsp;lors d&#8217;une des r\u00e9p\u00e9titions d&#8217;atterrissage. Les sp\u00e9cialistes du CTIF ont travaill\u00e9 sur le Crashpad, sous-syst\u00e8me du g\u00e9n\u00e9rateur solaire constitu\u00e9 de diff\u00e9rents blocs de mousse d&#8217;aluminium ind\u00e9pendants, charg\u00e9s de prot\u00e9ger l&#8217;ensemble lors de la chute. Ils ont notamment montr\u00e9, tests \u00e0 l&#8217;appui, que la production des mousses d&#8217;aluminium par fonderie r\u00e9pond au besoin. Ces mousses sont constitu\u00e9es d&#8217;aluminium pur, chaque cellule de la mousse d&#8217;aluminium (Castfoam K-Al-10-0,90) mesurant exactement 10 mm. La porosit\u00e9 des parties non homog\u00e8nes (parties mousse) est de 90&nbsp;% +\/-1&nbsp;%. Les pi\u00e8ces livr\u00e9es finies ont \u00e9t\u00e9 usin\u00e9es par \u00e9lectro-\u00e9rosion avec des toiles d&#8217;une finesse de 1 mm. Ces blocs de mousses d&#8217;aluminium ont ensuite \u00e9t\u00e9 test\u00e9s en laboratoire avec des essais de traction et compression \u00e0 diff\u00e9rentes temp\u00e9ratures pour r\u00e9pondre aux conditions rencontr\u00e9es sur Phobos. Enfin, les g\u00e9om\u00e9tries finales des \u00e9l\u00e9ments de mousse du Crashpad ont \u00e9t\u00e9 valid\u00e9es par le CNES en calcul puis en test d&#8217;impact sur pi\u00e8ces r\u00e9elles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.cetim.fr\" target=\"_blank\" rel=\"noreferrer noopener\">www.cetim.fr<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le CNES (Centre National d\u2019\u00c9tudes Spatiales) et le DLR (Deutsches  [&#8230;]<\/p>\n","protected":false},"author":7,"featured_media":1765980152,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[105,112,82],"tags":[],"class_list":["post-6613","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-micronora-informations","category-n162","category-rd-produits-et-sous-traitance"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Des mousses d\u2019aluminium pour Mars - 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