{"id":25869,"date":"2016-01-25T14:20:05","date_gmt":"2016-01-25T14:20:05","guid":{"rendered":"https:\/\/www.hgg-group.com\/knowledge\/larrondi-des-aretes-une-alternative-a-la-rupture-des-aretes\/"},"modified":"2024-09-19T13:11:00","modified_gmt":"2024-09-19T13:11:00","slug":"larrondi-des-aretes-une-alternative-a-la-rupture-des-aretes","status":"publish","type":"knowledge","link":"https:\/\/www.hgg-group.com\/fr\/connaissances\/larrondi-des-aretes-une-alternative-a-la-rupture-des-aretes\/","title":{"rendered":"L&rsquo;arrondi des ar\u00eates : une alternative \u00e0 la rupture des ar\u00eates"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"25869\" class=\"elementor elementor-25869 elementor-5018\" data-elementor-post-type=\"knowledge\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3b1e5ca e-flex e-con-boxed e-con e-parent\" data-id=\"3b1e5ca\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0ce38f7 elementor-widget elementor-widget-text-editor\" data-id=\"0ce38f7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h5>Autres fa\u00e7ons de casser les ar\u00eates des poutres<\/h5>\n<p><strong>La cr\u00e9ation d&rsquo;une barri\u00e8re contre la corrosion est essentielle pour prolonger la dur\u00e9e de vie des structures en acier.<br \/>\nLe cassage des ar\u00eates est donc appliqu\u00e9 pour am\u00e9liorer les surfaces de rev\u00eatement et, en fin de compte, la protection contre la corrosion.<br \/>\nLa tension superficielle \u00e9lev\u00e9e du rev\u00eatement liquide entra\u00eene l&rsquo;arrachement du film sur les ar\u00eates vives, ce qui se traduit par une \u00e9paisseur de rev\u00eatement insuffisante.  <\/strong><\/p>\n<p>Une d\u00e9faillance du rev\u00eatement rend une ar\u00eate plus sensible \u00e0 la corrosion.<br \/>\nLes peintures de protection et autres rev\u00eatements n&rsquo;adh\u00e8rent pas aux ar\u00eates vives des mat\u00e9riaux.<br \/>\nPour garantir un rev\u00eatement uniforme et complet sur la surface des ar\u00eates des poutres, des barres en T et des barres plates, ces ar\u00eates doivent d&rsquo;abord \u00eatre arrondies.<br \/>\nLes fabricants utilisent deux m\u00e9thodes courantes pour casser les ar\u00eates des poutres et des barres : le chanfreinage et le laminage.<br \/>\nCe dernier peut \u00eatre r\u00e9alis\u00e9 de trois mani\u00e8res : meulage, fraisage et arrondi des bords par laminage \u00e0 l&rsquo;aide de machines automatis\u00e9es.    <\/p>\n<h3>Rupture d&rsquo;ar\u00eate par chanfreinage versus arrondi d&rsquo;ar\u00eate<\/h3>\n<p>L&rsquo;inconv\u00e9nient du chanfreinage est la cr\u00e9ation de nouvelles ar\u00eates qui cr\u00e9ent toujours le m\u00eame effet d&rsquo;\u00e9viction du rev\u00eatement liquide en raison de la tension superficielle \u00e9lev\u00e9e.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b9c8a4a elementor-widget elementor-widget-image\" data-id=\"b9c8a4a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"367\" height=\"200\" src=\"https:\/\/www.hgg-group.com\/wp-content\/uploads\/2024\/05\/Edge-rounding-section-view-high-resolution-01-367x200-1.jpg\" class=\"attachment-2048x2048 size-2048x2048 wp-image-8466\" alt=\"\" srcset=\"https:\/\/www.hgg-group.com\/wp-content\/uploads\/2024\/05\/Edge-rounding-section-view-high-resolution-01-367x200-1.jpg 367w, https:\/\/www.hgg-group.com\/wp-content\/uploads\/2024\/05\/Edge-rounding-section-view-high-resolution-01-367x200-1-300x163.jpg 300w\" sizes=\"(max-width: 367px) 100vw, 367px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-58ba225 e-flex e-con-boxed e-con e-parent\" data-id=\"58ba225\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cf18d80 elementor-widget elementor-widget-text-editor\" data-id=\"cf18d80\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>C&rsquo;est pourquoi l&rsquo;arrondi des ar\u00eates est un proc\u00e9d\u00e9 pr\u00e9f\u00e9rable au chanfreinage.<br \/>\nLes techniques d&rsquo;arrondi des bords les plus courantes dans la pratique sont les op\u00e9rations d&rsquo;usinage telles que le meulage et le fraisage.<br \/>\nDes outils \u00e9lectriques et des machines semi-automatiques sont disponibles pour arrondir les ar\u00eates par usinage et sont le plus souvent utilis\u00e9s dans la pratique.  <\/p>\n<p>Nous allons examiner de plus pr\u00e8s les trois techniques alternatives permettant d&rsquo;atteindre cet objectif ;<\/p>\n<ul>\n<li>Broyage<\/li>\n<li>Fraisage<\/li>\n<li>Roulant<\/li>\n<\/ul>\n<h5> <\/h5>\n<h5>Fraisage<\/h5>\n<p>L&rsquo;\u00e9chantillon frais\u00e9 sur la photo ci-dessous montre le r\u00e9sultat de l&rsquo;arrondi des bords par une machine semi-automatique.<br \/>\nIl est tr\u00e8s difficile de guider la fraise le long du bord et la fraise n&rsquo;est pas dispos\u00e9e \u00e0 tol\u00e9rer le moindre \u00e9cart de positionnement.<br \/>\nIl en r\u00e9sulte la formation d&rsquo;orni\u00e8res non d\u00e9sir\u00e9es.<br \/>\nComme vous pouvez le voir, les bords sont arrondis, mais un peu chanfrein\u00e9s et pas compl\u00e8tement arrondis.<br \/>\nL&rsquo;image montre \u00e9galement une indentation.<br \/>\nCe proc\u00e9d\u00e9 ne garantit pas une \u00e9paisseur de rev\u00eatement constante.     <\/p>\n<h5>Broyage<\/h5>\n<p>L&rsquo;\u00e9chantillon meul\u00e9 sur la photo montre le r\u00e9sultat de l&rsquo;arrondi des bords par une machine semi-automatique.<br \/>\nLes bords sont arrondis mais un peu chanfrein\u00e9s et pas compl\u00e8tement arrondis.<br \/>\nCette structure de surface chanfrein\u00e9e est le r\u00e9sultat de multiples mouvements de meulage le long du bord.<br \/>\nLe meulage peut cr\u00e9er un bord arrondi bas\u00e9 sur des chanfreins multiples.<br \/>\nCela explique pourquoi le bord n&rsquo;est pas compl\u00e8tement arrondi.<br \/>\nC&rsquo;est pourquoi le meulage ne garantit pas une \u00e9paisseur de rev\u00eatement constante.     <\/p>\n<h5>Roulant<\/h5>\n<p>La troisi\u00e8me solution est le laminage.<br \/>\nUn laminoir tremp\u00e9 de forme ronde appuie sur le bord pour d\u00e9former l&rsquo;acier doux, ce qui cr\u00e9e des bords parfaitement arrondis sur le mat\u00e9riau.<br \/>\nLe rouleau se guide lui-m\u00eame et est pr\u00eat \u00e0 pardonner tout \u00e9cart de positionnement.<br \/>\nCette technique rapide, silencieuse et sans poussi\u00e8re n&rsquo;a qu&rsquo;un seul inconv\u00e9nient.<br \/>\nLa duret\u00e9 du mat\u00e9riau augmente l\u00e9g\u00e8rement au niveau du bord o\u00f9 la force est appliqu\u00e9e.<br \/>\nDes recherches sont n\u00e9cessaires pour v\u00e9rifier si l&rsquo;augmentation de la duret\u00e9 interf\u00e8re avec les normes du mat\u00e9riau.     <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4ccf95e e-flex e-con-boxed e-con e-parent\" data-id=\"4ccf95e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9dbeb50 elementor-widget elementor-widget-text-editor\" data-id=\"9dbeb50\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>L&rsquo;arrondi des bords est une m\u00e9thode alternative pour la rupture des bords des poutres<\/h3>\n<p>La rupture des ar\u00eates par laminage a longtemps \u00e9t\u00e9 consid\u00e9r\u00e9e comme un processus qui d\u00e9forme le mat\u00e9riau et peut donc entra\u00eener des microfissures et un durcissement, et a donc souvent \u00e9t\u00e9 \u00e9vit\u00e9e.<br \/>\nOn pense que le processus peut affecter les propri\u00e9t\u00e9s du mat\u00e9riau, qui ne pourrait alors pas r\u00e9pondre aux normes et aux codes.<br \/>\nToutefois, dans le cas d&rsquo;une rupture des ar\u00eates de surface uniquement, le volume d\u00e9form\u00e9 est tr\u00e8s faible et conforme aux normes internationales.  <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1388beb e-flex e-con-boxed e-con e-parent\" data-id=\"1388beb\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-0562af2 e-con-full e-flex e-con e-child\" data-id=\"0562af2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-da41df4 elementor-widget elementor-widget-image\" data-id=\"da41df4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.hgg-group.com\/wp-content\/uploads\/2024\/05\/edge-rounding-service-featured-150x150-2.jpg\" class=\"attachment-large size-large wp-image-8491\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-44c8b6a e-con-full e-flex e-con e-child\" data-id=\"44c8b6a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ac8e759 elementor-widget elementor-widget-image\" data-id=\"ac8e759\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.hgg-group.com\/wp-content\/uploads\/2024\/05\/edge-rounding-service-one-stop-shop-featured-150x150-2.jpg\" class=\"attachment-large size-large wp-image-8497\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cb41cd1 e-con-full e-flex e-con e-child\" data-id=\"cb41cd1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b89bd45 elementor-widget elementor-widget-image\" data-id=\"b89bd45\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.hgg-group.com\/wp-content\/uploads\/2024\/05\/edge-rounding-service-perfect-radius-featured-150x150-1.jpg\" class=\"attachment-large size-large wp-image-8503\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8e290c0 e-con-full e-flex e-con e-child\" data-id=\"8e290c0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d3c9324 elementor-widget elementor-widget-image\" data-id=\"d3c9324\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" src=\"https:\/\/www.hgg-group.com\/wp-content\/uploads\/2024\/05\/edge-rounding-service-automised-200x200-1.jpg\" class=\"attachment-large size-large wp-image-8509\" alt=\"\" srcset=\"https:\/\/www.hgg-group.com\/wp-content\/uploads\/2024\/05\/edge-rounding-service-automised-200x200-1.jpg 200w, https:\/\/www.hgg-group.com\/wp-content\/uploads\/2024\/05\/edge-rounding-service-automised-200x200-1-150x150.jpg 150w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Explorer d&rsquo;autres m\u00e9thodes pour casser les ar\u00eates des poutres afin de pr\u00e9venir la corrosion et d&rsquo;assurer une meilleure adh\u00e9rence du rev\u00eatement.  <\/p>\n","protected":false},"featured_media":5021,"template":"","knowledge-tag":[365],"class_list":["post-25869","knowledge","type-knowledge","status-publish","has-post-thumbnail","hentry","knowledge-tag-automation-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>L&#039;arrondi des ar\u00eates : une alternative \u00e0 la rupture des ar\u00eates - HGG Group We Revolutionize The World Of Steel<\/title>\n<meta name=\"description\" content=\"Explorez l&#039;arrondi des bords, l&#039;alternative \u00e0 la rupture des bords, sur les poutres afin de pr\u00e9venir la corrosion et d&#039;assurer une meilleure adh\u00e9rence du rev\u00eatement.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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