{"id":7966,"date":"2018-02-23T18:00:40","date_gmt":"2018-02-23T18:00:40","guid":{"rendered":"https:\/\/www.scsconcept.com\/?p=7966"},"modified":"2018-05-10T09:57:45","modified_gmt":"2018-05-10T09:57:45","slug":"comment-serrer-un-boulon","status":"publish","type":"post","link":"https:\/\/sitowebsmart.com\/fr\/comment-serrer-un-boulon\/","title":{"rendered":"Comment serrer un boulon"},"content":{"rendered":"<p><span lang=\"it-IT\"><a><img  title=\"Comment serrer un boulon\" fetchpriority=\"high\" class=\"aligncenter wp-image-3584 size-full\"  alt=\"Comment serrer un boulon\"  width=\"418\" height=\"294\" \/><\/a><\/span><\/p>\n<p><img  title=\"Comment serrer un boulon\" decoding=\"async\" class=\"size-full wp-image-9910 aligncenter\" src=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Caracte\u0301ristiques-couple-angle-d\u2019un-joint.jpg\"  alt=\"Comment serrer un boulon\"  width=\"316\" height=\"234\" srcset=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Caracte\u0301ristiques-couple-angle-d\u2019un-joint.jpg 316w, https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Caracte\u0301ristiques-couple-angle-d\u2019un-joint-300x222.jpg 300w\" sizes=\"(max-width: 316px) 100vw, 316px\" \/><\/p>\n<p>Serrer un joint est une op\u00e9ration moins insignifiante que vous pourriez le penser. Serrer une vis au couple nominal n\u2019est pas une garantie d\u2019un serrage propre et stable au fil du temps. La force qui tient ensemble les deux parties est pr\u00e9 charg\u00e9e dans le joint. Le pr\u00e9 chargement allonge la vis, et est la seule force qui pr\u00e9vient le joint \u00e0 d\u00e9visser\u00a0:<\/p>\n<p>&nbsp;<\/p>\n<p><span lang=\"it-IT\"><img  title=\"Comment serrer un boulon\" decoding=\"async\" class=\"wp-image-9903 size-full aligncenter\" src=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Couple-et-pre\u0301-chargement-dans-un-joint.jpg\"  alt=\"Comment serrer un boulon\"  width=\"332\" height=\"95\" srcset=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Couple-et-pre\u0301-chargement-dans-un-joint.jpg 332w, https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Couple-et-pre\u0301-chargement-dans-un-joint-300x86.jpg 300w\" sizes=\"(max-width: 332px) 100vw, 332px\" \/><\/span><\/p>\n<p>&nbsp;<\/p>\n<p>Derri\u00e8re un serrage apparemment optimal, il y a diff\u00e9rents probl\u00e8mes qui pourraient conduire \u00e0 un desserrage ou une cassure du joint:<\/p>\n<ul>\n<li>Mauvais alignement entre la vis et le joint<\/li>\n<li>Friction excessive<\/li>\n<li>Trou bouch\u00e9<\/li>\n<li>Assouplissement excessif du joint<\/li>\n<li>Joint viss\u00e9 au mauvais couple<\/li>\n<li>Mauvaise vis<\/li>\n<li>Erreur de l\u2019op\u00e9rateur<\/li>\n<li>Probl\u00e8me avec la visseuse ou la cl\u00e9 utilis\u00e9e pour le serrage<\/li>\n<\/ul>\n<p><strong>Comment est-il possible d\u2019assurer la qualit\u00e9 des serrages le long d\u2019une ligne de production?<\/strong><\/p>\n<p>Pour serrer un couplage il est n\u00e9cessaire de:<\/p>\n<ul>\n<li>Conna\u00eetre les caract\u00e9ristiques couple \/ angle du joint<\/li>\n<li>Etudier les m\u00e9canismes du joint<\/li>\n<li>Utiliser une visseuse ou une cl\u00e9 fournissant une strat\u00e9gie de serrage correcte<\/li>\n<li>Mettre en \u0153uvre un syst\u00e8me de contr\u00f4le qualit\u00e9 et v\u00e9rifier la qualit\u00e9 du serrage \u00e0 la fin du processus d\u2019assemblage<\/li>\n<\/ul>\n<p>De plus, dans les serrages critiques le long de la ligne de production, le serrage doit \u00eatre \u00ab\u00a0certifi\u00e9\u00a0\u00bb. L\u2019op\u00e9ration de serrage doit \u00eatre ex\u00e9cut\u00e9e par un instrument calibr\u00e9, et les param\u00e8tres de serrage doivent \u00eatre suivis, associ\u00e9s avec la partie production et stock\u00e9s dans une base de donn\u00e9es.<\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"widget-title\" style=\"font-size: 26px;\">SERRAGE AVEC UNE CLE MECANIQUE<\/h2>\n<p>Serrer un joint avec une cl\u00e9 m\u00e9canique est la m\u00e9thode la moins pr\u00e9cise et la plus dangereuse.<\/p>\n<p>La cl\u00e9 m\u00e9canique ne fournit pas de lecture de couple, et le couple final est influenc\u00e9 par l\u2019utilisation d\u2019une cl\u00e9 m\u00e9canique par l\u2019op\u00e9rateur. Le risque d\u2019un sur couple est particuli\u00e8rement haut, et il est impossible d\u2019assurer la reproduction de l\u2019op\u00e9ration.<\/p>\n<p>&nbsp;<\/p>\n<p><img  title=\"Comment serrer un boulon\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-9917 size-full aligncenter\" src=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Caracte\u0301ristiques-couple-temps-d\u2019une-cle\u0301-me\u0301canique.jpg\"  alt=\"Comment serrer un boulon\"  width=\"295\" height=\"169\" \/><\/p>\n<p>Finalement, la valeur du couple appliqu\u00e9 peut \u00eatre alt\u00e9r\u00e9e par une mauvaise manipulation de l\u2019op\u00e9rateur:<\/p>\n<p>&nbsp;<\/p>\n<p><img  title=\"Comment serrer un boulon\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-9923 size-full aligncenter\" src=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Manipulation-d\u2019une-cle\u0301-me\u0301canique.jpg\"  alt=\"Comment serrer un boulon\"  width=\"339\" height=\"66\" srcset=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Manipulation-d\u2019une-cle\u0301-me\u0301canique.jpg 339w, https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Manipulation-d\u2019une-cle\u0301-me\u0301canique-300x58.jpg 300w\" sizes=\"(max-width: 339px) 100vw, 339px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"widget-title\" style=\"font-size: 26px;\">SERRAGE SANS CONTROLE DU COUPLE<\/h2>\n<p>Serrer un joint avec une visseuse sans contr\u00f4le du couple (visseuses \u00e9lectriques, hydrauliques ou \u00e0 impulsion), le couple est plus reproductible qu\u2019en utilisant une cl\u00e9 m\u00e9canique. Le serrage n\u2019est maintenant plus influenc\u00e9 par l\u2019op\u00e9rateur, et la pr\u00e9cision de la valeur du couple appliqu\u00e9 d\u00e9pend de la reproductibilit\u00e9 de l\u2019outil.<\/p>\n<p>Ce syst\u00e8me ne fournit toujours aucune \u00e9vidence que le serrage a \u00e9t\u00e9 une r\u00e9ussite ou non.<\/p>\n<p>&nbsp;<\/p>\n<p><img  title=\"Comment serrer un boulon\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-9929 size-full aligncenter\" src=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Serrage-sans-contro\u0302le-du-couple.jpg\"  alt=\"Comment serrer un boulon\"  width=\"325\" height=\"123\" srcset=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Serrage-sans-contro\u0302le-du-couple.jpg 325w, https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Serrage-sans-contro\u0302le-du-couple-300x114.jpg 300w\" sizes=\"(max-width: 325px) 100vw, 325px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"widget-title\" style=\"font-size: 26px;\">SERRAGE AVEC COUPLE CONTROLE<\/h2>\n<p>Utiliser un outil (cl\u00e9 couple \u00e9lectronique ou visseuse avec contr\u00f4le de l\u2019angle) qui mesure le couple est une premi\u00e8re \u00e9tape vers une op\u00e9ration de serrage correcte et \u00ab\u00a0certifi\u00e9e\u00a0\u00bb.<\/p>\n<p lang=\"it-IT\">L\u2019op\u00e9rateur lit le couple appliqu\u00e9 au joint et r\u00e9alise imm\u00e9diatement si le serrage est termin\u00e9 correctement.<\/p>\n<p lang=\"it-IT\"><img  title=\"Comment serrer un boulon\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-9936 size-full aligncenter\" src=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Tightening-with-torque-control.jpg\"  alt=\"Comment serrer un boulon\"  width=\"239\" height=\"136\" \/><\/p>\n<p>Appliquer la valeur du couple d\u00e9sir\u00e9 est n\u00e9cessaire mais pas suffisante pour assurer que le joint est libre de tous probl\u00e8mes. Dans l\u2019exemple ci-dessous, la valeur du couple d\u00e9sir\u00e9 est atteinte, mais le raccordement n\u2019est pas serr\u00e9 en aucune fa\u00e7on comme la vis n\u2019est pas soud\u00e9e dans le fil:<\/p>\n<p>&nbsp;<\/p>\n<p><img  title=\"Comment serrer un boulon\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-9942 size-full aligncenter\" src=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Proble\u0300me-de-serrage.jpg\"  alt=\"Comment serrer un boulon\"  width=\"314\" height=\"90\" srcset=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Proble\u0300me-de-serrage.jpg 314w, https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Proble\u0300me-de-serrage-300x86.jpg 300w\" sizes=\"(max-width: 314px) 100vw, 314px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"widget-title\" style=\"font-size: 26px;\">SERRAGE AVEC COUPLE ET ANGLE CONTROLE<\/h2>\n<p>Si pendant l\u2019op\u00e9ration de serrage du couple, il est aussi appliqu\u00e9 une motorisation de l\u2019angle de rotation, nous pouvons assurer la qualit\u00e9 du serrage comme la vis \u00e9tait serr\u00e9e et allong\u00e9e correctement.<\/p>\n<p>En ajoutant les param\u00e8tres de l\u2019angle au serrage, cela r\u00e9duit la zone d\u2019acceptation, en \u00e9liminant les probl\u00e8mes tels que ceux montr\u00e9s sur l\u2019exemple pr\u00e9c\u00e8dent:<\/p>\n<p>&nbsp;<\/p>\n<p><img  title=\"Comment serrer un boulon\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-9948 size-full aligncenter\" src=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Serrage-avec-contro\u0302le-du-couple-et-de-angle.jpg\"  alt=\"Comment serrer un boulon\"  width=\"275\" height=\"166\" \/><\/p>\n<p lang=\"it-IT\">Une vis correctement allong\u00e9e produit un pr\u00e9 chargement de la prise du joint.<\/p>\n<p>Pour obtenir un serrage avec contr\u00f4le du couple et de l\u2019angle, il est n\u00e9cessaire d\u2019avoir une cl\u00e9 couple \u00e9lectronique \u00e9quip\u00e9e d\u2019un gyroscope, ou une visseuse \u00e9lectronique avec contr\u00f4le du couple et de l\u2019angle.<\/p>\n<p>Ces outils sont g\u00e9n\u00e9ralement capables d\u2019exporter et transf\u00e9rer les valeurs du couple vers une base de donn\u00e9es pour la tra\u00e7abilit\u00e9 des donn\u00e9es.<\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"widget-title\" style=\"font-size: 26px;\">SERRAGE COUPLE PLUS ANGLE<\/h2>\n<p>Dans certaines applications (par exemple les serrages critiques dans l\u2019assemblage des voitures), vous voulez la garantie que le serrage a exc\u00e9d\u00e9 le point d\u2019\u00e9lasticit\u00e9 de la vis. Pour supporter ceci, les caract\u00e9ristiques couple\/angle doivent avoir une zone suffisante au-del\u00e0 du point d\u2019\u00e9lasticit\u00e9 pour \u00e9viter la cassure. Les vis qui sont utilis\u00e9es ont une conception m\u00e9canique qui permet un allongement plus grand que la vis elle-m\u00eame.<\/p>\n<p>Cette strat\u00e9gie de serrage attendue permet d\u2019atteindre une certaine valeur du couple puis de continuer la rotation motoris\u00e9e de la vis jusqu\u2019\u00e0 la valeur voulue.<\/p>\n<p lang=\"it-IT\"><img  title=\"Comment serrer un boulon\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-9954 size-full aligncenter\" src=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Serrage-avec-couple-plus-angle.jpg\"  alt=\"Comment serrer un boulon\"  width=\"350\" height=\"160\" srcset=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Serrage-avec-couple-plus-angle.jpg 350w, https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Serrage-avec-couple-plus-angle-300x137.jpg 300w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><\/p>\n<p>Pour obtenir un serrage couple plus angle, la cl\u00e9 \u00e9lectronique ou la visseuse doit \u00eatre \u00e9quip\u00e9e avec sa strat\u00e9gie sp\u00e9cifique.<\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"widget-title\" style=\"font-size: 26px;\">SERRAGE AU POINT D\u2019ELASTICITE<\/h2>\n<p>En g\u00e9n\u00e9ral, le serrage couple cible est param\u00e9tr\u00e9 au-dessous du point d\u2019\u00e9lasticit\u00e9. Certains serrages (par exemple les serrages critiques dans l\u2019assemblage des voitures) sont r\u00e9alis\u00e9s exactement au point d\u2019\u00e9lasticit\u00e9. Cette strat\u00e9gie de serrage donne l\u2019effet ressort maximum de la vis en fournissant un pr\u00e9 chargement plus grand dans le raccordement, et un risque plus faible de d\u00e9vissage. Le raccord doit \u00eatre d\u00e9sign\u00e9 pour travailler dans ces conditions.<\/p>\n<p>&nbsp;<\/p>\n<p><img  title=\"Comment serrer un boulon\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-9960 size-full\" src=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2018\/02\/Serrage-au-point-d\u2019e\u0301lasticite\u0301.jpg\"  alt=\"Comment serrer un boulon\"  width=\"182\" height=\"144\" \/><\/p>\n<p>Pour obtenir un serrage au point d\u2019\u00e9lasticit\u00e9, la cl\u00e9 couple \u00e9lectronique ou la visseuse doivent \u00eatre \u00e9quip\u00e9es avec un algorithme pour la reconnaissance automatique du point d\u2019\u00e9lasticit\u00e9.<\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"widget-title\" style=\"font-size: 26px;\">VERIFICATION DU COUPLE RESIDUEL<\/h2>\n<p>Serrer un raccordement correctement est une \u00e9tape obligatoire dans le processus de production.<\/p>\n<p>Sans tenir compter de la strat\u00e9gie de serrage, il y a une derni\u00e8re \u00e9tape qui n\u00e9cessite d\u2019\u00eatre faite pour un contr\u00f4le qualit\u00e9 complet sur la ligne de production : la mesure du couple r\u00e9siduel.<\/p>\n<p>Choisir la bonne strat\u00e9gie de serrage assure que le joint a \u00e9t\u00e9 viss\u00e9 comme sp\u00e9cifi\u00e9, mais ce qu\u2019il se passe au raccordement apr\u00e8s le serrage reste compl\u00e8tement inconnu.<\/p>\n<p>Quelle part de pr\u00e9 chargement appliqu\u00e9 est toujours \u00e0 l&rsquo;int\u00e9rieur de la jonction apr\u00e8s le processus de production ?<\/p>\n<p><a><br \/>\n<img  title=\"Comment serrer un boulon\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-3586 size-full aligncenter\" src=\"https:\/\/sitowebsmart.com\/wp-content\/uploads\/2015\/12\/Perdita-di-precarico-nel-giunto.gif\"  alt=\"Comment serrer un boulon\"  width=\"675\" height=\"162\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Serrer un joint est une op\u00e9ration moins insignifiante que vous pourriez le penser. Serrer une vis au couple nominal n\u2019est pas une garantie d\u2019un serrage propre et stable au fil<\/p>\n","protected":false},"author":5,"featured_media":15297,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[118],"tags":[121],"class_list":["post-7966","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-serrage-et-controle-de-la-qualite","tag-serrer-un-boulon"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Comment serrer un boulon - SCS Concept<\/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:\/\/sitowebsmart.com\/fr\/comment-serrer-un-boulon\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comment serrer un boulon - SCS Concept\" \/>\n<meta property=\"og:description\" content=\"Serrer un joint est une op\u00e9ration moins insignifiante que vous pourriez le penser. 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