{"id":2094,"date":"2026-03-13T15:51:24","date_gmt":"2026-03-13T07:51:24","guid":{"rendered":"https:\/\/omnidexcn.com\/?p=2094"},"modified":"2026-03-13T16:22:23","modified_gmt":"2026-03-13T08:22:23","slug":"producing-zero-porosity-aluminium-supercharger-housings","status":"publish","type":"post","link":"https:\/\/omnidexcn.com\/fr\/producing-zero-porosity-aluminium-supercharger-housings\/","title":{"rendered":"Fabrication de carters aluminium sans porosit\u00e9"},"content":{"rendered":"<h3 class=\"wp-block-heading\">Fabrication de carters aluminium sans porosit\u00e9<\/h3>\r\n\r\n\r\n\r\n<p>Production de carters aluminium haute performance pour compresseurs automobiles aftermarket.<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-media-text is-vertically-aligned-center is-stacked-on-mobile\" style=\"grid-template-columns: 45% 55%;\">\r\n<figure class=\"wp-block-media-text__media\"><img decoding=\"async\" style=\"width: 100%; height: auto;\" src=\"https:\/\/omnidexcn.com\/wp-content\/uploads\/2026\/03\/Picture-314-300x199.jpg\" alt=\"Aluminium supercharger housing casting\" \/><\/figure>\r\n<div class=\"wp-block-media-text__content\"> <h3>Aper\u00e7u du projet<\/h3> \r\n\r\n Dans les applications automobiles sp\u00e9cialis\u00e9es, les compresseurs sont souvent install\u00e9s comme am\u00e9liorations de performance. Ces syst\u00e8mes n\u00e9cessitent des composants pr\u00e9cis capables de r\u00e9sister \u00e0 la pression tout en assurant une \u00e9tanch\u00e9it\u00e9 parfaite. Omnidex a fabriqu\u00e9 des carters en aluminium en petites s\u00e9ries, n\u00e9cessitant une solution \u00e9quilibrant qualit\u00e9 et co\u00fbt d\u2019outillage. <\/div>\r\n<\/div>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">D\u00e9fi technique<\/h4>\r\n\r\n\r\n\r\n<p>Les carters doivent r\u00e9pondre \u00e0 deux exigences essentielles:<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>R\u00e9sistance structurelle sous pression<\/strong><\/li>\r\n<li><strong>Z\u00e9ro porosit\u00e9 interne<\/strong><\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>M\u00eame une faible porosit\u00e9 peut entra\u00eener des fuites et r\u00e9duire les performances.<\/p>\r\n\r\n\r\n\r\n<p>Les faibles volumes rendaient les proc\u00e9d\u00e9s co\u00fbteux comme la fonderie sous pression non viables.<\/p>\r\n\r\n\r\n\r\n<p>Une solution devait \u00e9quilibrer :<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>des co\u00fbts d\u2019outillage r\u00e9duits<\/li>\r\n<li>une bonne pr\u00e9cision dimensionnelle<\/li>\r\n<li>et une performance d\u2019\u00e9tanch\u00e9it\u00e9 totalement fiable.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Choix du proc\u00e9d\u00e9 de fonderie<\/h4>\r\n\r\n\r\n\r\n<p>Pour r\u00e9duire les co\u00fbts initiaux d\u2019outillage, les carters ont \u00e9t\u00e9 fabriqu\u00e9s par moulage gravitaire en aluminium. <strong>gravity casting in aluminium<\/strong>.<\/p>\r\n\r\n\r\n\r\n<p>Le moulage gravitaire offre plusieurs avantages pour les productions de faible et moyen volume :<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>des co\u00fbts d\u2019outillage nettement plus faibles que la fonderie sous pression ou la fonderie de pr\u00e9cision<\/li>\r\n<li>de bonnes propri\u00e9t\u00e9s m\u00e9caniques dans les alliages d\u2019aluminium<\/li>\r\n<li>une bonne flexibilit\u00e9 pour des formes complexes comme les collecteurs de compresseur<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>However, gravity casting can sometimes produce <strong>minor internal porosity<\/strong>Cependant, le moulage gravitaire peut parfois g\u00e9n\u00e9rer une l\u00e9g\u00e8re porosit\u00e9 interne, acceptable dans de nombreuses applications mais inadmissible pour des composants de compresseur sous pression.<\/p>\r\n\r\n\r\n\r\n<div style=\"display: flex; justify-content: center; gap: 28px; flex-wrap: wrap; margin: 30px 0;\"><img decoding=\"async\" style=\"width: 420px; max-width: 100%; height: auto;\" src=\"https:\/\/omnidexcn.com\/wp-content\/uploads\/2026\/03\/Picture-247-300x199.jpg\" alt=\"gravity cast aluminium supercharger housing\" \/> <img decoding=\"async\" style=\"width: 420px; max-width: 100%; height: auto;\" src=\"https:\/\/omnidexcn.com\/wp-content\/uploads\/2026\/03\/Picture-323-300x199.jpg\" alt=\"machined aluminium supercharger housing\" \/><\/div>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Traitement du probl\u00e8me de porosit\u00e9<\/h4>\r\n\r\n\r\n\r\n<p>Pour garantir une \u00e9tanch\u00e9it\u00e9 totale des carters, un proc\u00e9d\u00e9 d\u2019impr\u00e9gnation \u00e0 la r\u00e9sine a \u00e9t\u00e9 utilis\u00e9. <strong>resin impregnation process<\/strong> was used.<\/p>\r\n\r\n\r\n\r\n<p>Apr\u00e8s la fonderie et l\u2019usinage, les carters ont subi un traitement d\u2019\u00e9tanch\u00e9it\u00e9 sp\u00e9cialis\u00e9 destin\u00e9 \u00e0 \u00e9liminer la porosit\u00e9 microscopique.<\/p>\r\n\r\n\r\n\r\n<p>Le processus comprenait :<\/p>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\">\r\n<li>Chauffer une r\u00e9sine sp\u00e9cialement formul\u00e9e \u00e0 la bonne temp\u00e9rature<\/li>\r\n<li>Appliquer la r\u00e9sine sur les surfaces internes de la pi\u00e8ce moul\u00e9e sous pression<\/li>\r\n<li>Permettre \u00e0 la r\u00e9sine de p\u00e9n\u00e9trer dans toute micro-porosit\u00e9 de la structure en aluminium<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<p>Une fois les vides microscopiques remplis par la r\u00e9sine, l\u2019exc\u00e9dent de mati\u00e8re a \u00e9t\u00e9 retir\u00e9 par aspiration ou \u00e9coulement.<\/p>\r\n\r\n\r\n\r\n<p>Ce proc\u00e9d\u00e9 a scell\u00e9 la pi\u00e8ce en interne sans modifier ses dimensions ext\u00e9rieures.<\/p>\r\n\r\n\r\n\r\n<div style=\"display: flex; justify-content: center; gap: 28px; flex-wrap: wrap; margin: 30px 0;\"><img decoding=\"async\" style=\"width: 420px; max-width: 100%; height: auto;\" src=\"https:\/\/omnidexcn.com\/wp-content\/uploads\/2026\/03\/Picture-372-300x199.jpg\" alt=\"resin impregnation sealing process aluminium casting\" \/> <img decoding=\"async\" style=\"width: 420px; max-width: 100%; height: auto;\" src=\"https:\/\/omnidexcn.com\/wp-content\/uploads\/2026\/03\/Picture-317-300x199.jpg\" alt=\"sealed aluminium supercharger housing ready for testing\" \/><\/div>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Essai de pression<\/h4>\r\n\r\n\r\n\r\n<p>Apr\u00e8s le processus d\u2019impr\u00e9gnation, chaque carter de compresseur a \u00e9t\u00e9 soumis \u00e0 un essai de v\u00e9rification de pression. <strong>pressure verification test<\/strong>.<\/p>\r\n\r\n\r\n\r\n<p>Les carters ont \u00e9t\u00e9 chauff\u00e9s \u00e0 une temp\u00e9rature contr\u00f4l\u00e9e puis mis sous pression afin de confirmer qu\u2019ils \u00e9taient parfaitement \u00e9tanches.<\/p>\r\n\r\n\r\n\r\n<p>Cette \u00e9tape finale a garanti que chaque carter r\u00e9pondait aux exigences de performance n\u00e9cessaires au fonctionnement du compresseur.<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">R\u00e9sultat final<\/h4>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>carters fiables sans porosit\u00e9<\/li>\r\n<li>investissement r\u00e9duit en outillage<\/li>\r\n<li>une production adapt\u00e9e aux applications automobiles sp\u00e9cialis\u00e9es du march\u00e9 aftermarket<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>Les composants finis ont fourni la r\u00e9sistance, l\u2019\u00e9tanch\u00e9it\u00e9 et la pr\u00e9cision dimensionnelle requises pour les syst\u00e8mes de compresseur.<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Analyse technique<\/h4>\r\n\r\n\r\n\r\n<p>Ce projet montre comment la bonne combinaison de m\u00e9thodes de fabrication et de proc\u00e9d\u00e9s secondaires peut fournir des solutions pratiques pour des productions techniques \u00e0 faible volume.<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li>moulage gravitaire<\/li>\r\n<li>usinage de pr\u00e9cision<\/li>\r\n<li>\u00e9tanch\u00e9it\u00e9 par impr\u00e9gnation de r\u00e9sine<\/li>\r\n<li>essai de pression<\/li>\r\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Manufacturing Aluminium Supercharger Housings with Zero Porosity Producing high-performance aluminium housings for aftermarket automotive supercharger systems. Project Overview For specialist automotive applications, superchargers are often installed as aftermarket performance upgrades. These systems require precision components capable of withstanding pressure and mechanical stresses while maintaining perfect sealing. Omnidex was asked to manufacture a series of aluminium [&hellip;]<\/p>","protected":false},"author":1,"featured_media":2101,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"pagelayer_contact_templates":[],"_pagelayer_content":"","footnotes":""},"categories":[51],"tags":[66,67,64,65,68,69],"class_list":["post-2094","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-how-we-made-it","tag-aluminium-components","tag-automotive-manufacturing","tag-engineering-case-study","tag-gravity-casting","tag-resin-impregnation","tag-such-as-aerospace-components"],"acf":[],"_links":{"self":[{"href":"https:\/\/omnidexcn.com\/fr\/wp-json\/wp\/v2\/posts\/2094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/omnidexcn.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/omnidexcn.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/omnidexcn.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/omnidexcn.com\/fr\/wp-json\/wp\/v2\/comments?post=2094"}],"version-history":[{"count":5,"href":"https:\/\/omnidexcn.com\/fr\/wp-json\/wp\/v2\/posts\/2094\/revisions"}],"predecessor-version":[{"id":2108,"href":"https:\/\/omnidexcn.com\/fr\/wp-json\/wp\/v2\/posts\/2094\/revisions\/2108"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/omnidexcn.com\/fr\/wp-json\/wp\/v2\/media\/2101"}],"wp:attachment":[{"href":"https:\/\/omnidexcn.com\/fr\/wp-json\/wp\/v2\/media?parent=2094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/omnidexcn.com\/fr\/wp-json\/wp\/v2\/categories?post=2094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/omnidexcn.com\/fr\/wp-json\/wp\/v2\/tags?post=2094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}