{"id":9417,"date":"2024-12-19T09:19:31","date_gmt":"2024-12-19T09:19:31","guid":{"rendered":"https:\/\/gaspariutensili.it\/non-classifiee\/barres-anti-vibration\/"},"modified":"2024-12-20T08:59:37","modified_gmt":"2024-12-20T08:59:37","slug":"barres-anti-vibration","status":"publish","type":"post","link":"https:\/\/gaspariutensili.it\/fr\/articles-techniques\/barres-anti-vibration\/","title":{"rendered":"Barres anti-vibration"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"9417\" class=\"elementor elementor-9417 elementor-3442\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-280d342 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"280d342\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-661bce7\" data-id=\"661bce7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cd70796 elementor-widget elementor-widget-heading\" data-id=\"cd70796\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">la vibration<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6b42456 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6b42456\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-0b85135\" data-id=\"0b85135\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9cc1bd8 elementor-widget elementor-widget-image\" data-id=\"9cc1bd8\" 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<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/effetto-delle-vibrazioni-sulla-finitura_ok-1024x768.jpg\" class=\"attachment-large size-large wp-image-6730\" alt=\"\" srcset=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/effetto-delle-vibrazioni-sulla-finitura_ok-1024x768.jpg 1024w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/effetto-delle-vibrazioni-sulla-finitura_ok-600x450.jpg 600w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/effetto-delle-vibrazioni-sulla-finitura_ok-300x225.jpg 300w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/effetto-delle-vibrazioni-sulla-finitura_ok-768x576.jpg 768w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/effetto-delle-vibrazioni-sulla-finitura_ok.jpg 1400w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">L'effet des vibrations sur la finition de l'usinage<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-cd81260\" data-id=\"cd81260\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-19d1396 elementor-widget elementor-widget-text-editor\" data-id=\"19d1396\" 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>Le terme vibration d\u00e9signe une oscillation m\u00e9canique autour d\u2019un point d\u2019\u00e9quilibre. Les vibrations repr\u00e9sentent un ph\u00e9nom\u00e8ne ind\u00e9sirable en m\u00e9canique ; elles provoquent en effet une dissipation d\u2019\u00e9nergie et g\u00e9n\u00e8rent des bruits et des sons non souhait\u00e9s. Les vibrations peuvent \u00e9galement causer des dommages \u00e0 l\u2019outil utilis\u00e9, \u00e0 la machine et \u00e0 la pi\u00e8ce en cours de fabrication.<br \/>La g\u00e9n\u00e9ration de bruits et de vibrations est d\u00e9termin\u00e9e par trois aspects principaux :<\/p><ol><li>le montage de la pi\u00e8ce sur la machine-outil<\/li><li>La g\u00e9om\u00e9trie de l&rsquo;outil<\/li><li>la strat\u00e9gie de fabrication et le parcours de l&rsquo;outil<\/li><\/ol>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-92111c5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"92111c5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4249539\" data-id=\"4249539\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e7f3b97 elementor-widget elementor-widget-heading\" data-id=\"e7f3b97\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Le contr\u00f4le des vibrations<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6d6f737 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6d6f737\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1872c52\" data-id=\"1872c52\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e6a3e6c elementor-widget elementor-widget-text-editor\" data-id=\"e6a3e6c\" 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>1.\u00a0L\u2019approche de base pour le contr\u00f4le des vibrations dans l\u2019usinage est l\u2019augmentation de la rigidit\u00e9 des \u00e9l\u00e9ments du syst\u00e8me. Pour limiter les mouvements ind\u00e9sirables, il est n\u00e9cessaire que la machine-outil soit construite avec des \u00e9l\u00e9ments structurels rigides et lourds, renforc\u00e9s avec du b\u00e9ton ou d\u2019autres mat\u00e9riaux absorbant les vibrations, comme la fonte par exemple. Les roulements et les douilles de la machine doivent avoir des tol\u00e9rances serr\u00e9es et \u00eatre robustes.<\/p><p>2.\u00a0Pour maximiser la rigidit\u00e9, une barre de per\u00e7age ou de tournage doit \u00eatre aussi courte que possible, tout en \u00e9tant suffisamment longue pour acc\u00e9der \u00e0 la profondeur du trou ou du composant. Le diam\u00e8tre de la barre de per\u00e7age doit \u00eatre le plus grand possible, tout en \u00e9tant compatible avec le diam\u00e8tre du trou, permettant ainsi une \u00e9vacuation efficace des copeaux.<\/p><p>3.\u00a0Lorsque les copeaux se forment et se cassent, les forces de coupe augmentent et diminuent. Ces variations deviennent une source de vibrations, qui \u00e0 leur tour peuvent cr\u00e9er une r\u00e9sonance \u00e0 la fr\u00e9quence propre du porte-outil ou de la machine, devenant ainsi auto-entretenues ou m\u00eame amplifi\u00e9es. D\u2019autres sources de vibrations sont les outils us\u00e9s ou ceux qui ne r\u00e9alisent pas une passe suffisamment profonde. Ceux-ci provoquent une instabilit\u00e9 du processus ou une r\u00e9sonance \u00e0 la m\u00eame fr\u00e9quence naturelle de la broche ou de l\u2019outil, g\u00e9n\u00e9rant ainsi des vibrations ind\u00e9sirables.<\/p><p>4.\u00a0Une barre de per\u00e7age longue ou un exc\u00e8s de port\u00e9e de la barre de tournage peuvent provoquer des vibrations dans la machine. L\u2019approche de base pour le contr\u00f4le des vibrations consiste \u00e0 utiliser des outils courts et rigides. Plus le rapport entre la longueur de la barre et le diam\u00e8tre est \u00e9lev\u00e9, plus la probabilit\u00e9 que des vibrations se produisent est grande.<\/p>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e9abef2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e9abef2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4e11208\" data-id=\"4e11208\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-20299ce elementor-widget elementor-widget-heading\" data-id=\"20299ce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">LE D\u00c9FI DE LA MODIFICATION DE LA FR\u00c9QUENCE DE VIBRATION<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-705639a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"705639a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-a97c6df\" data-id=\"a97c6df\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0460354 elementor-widget elementor-widget-image\" data-id=\"0460354\" 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\" src=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/elementor\/thumbs\/grafico_maq-qylkxmuwokob8j94q4r9xyxwy3iec04x3z8p7rxo8w.png\" title=\"grafico_maq\" alt=\"grafico_maq\" loading=\"lazy\" \/>\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c5c012a\" data-id=\"c5c012a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6d46ef1 elementor-widget elementor-widget-text-editor\" data-id=\"6d46ef1\" 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<ul>\n<li>Si l&rsquo;on multiplie la saillie d&rsquo;une barre antivibrations par une fois son diam\u00e8tre, la fr\u00e9quence des vibrations diminuera d&rsquo;environ 30 %.<\/li>\n<li>La fr\u00e9quence de vibration change de mani\u00e8re significative lorsque le rapport entre la longueur expos\u00e9e et le diam\u00e8tre change.<\/li>\n<li>La situation r\u00e9elle est beaucoup plus complexe, car la structure de la machine influe \u00e9galement sur la fr\u00e9quence des vibrations.<\/li>\n<\/ul>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6c5eaa7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6c5eaa7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3426f26\" data-id=\"3426f26\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-604bcc6 elementor-widget elementor-widget-heading\" data-id=\"604bcc6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Les diff\u00e9rentes types de barres anti-vibrations<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b864e75 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b864e75\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2cf01fe\" data-id=\"2cf01fe\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e088406 elementor-widget elementor-widget-text-editor\" data-id=\"e088406\" 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>Les diff\u00e9rents mat\u00e9riaux des barres offrent un comportement diff\u00e9rent. Les barres en acier sont g\u00e9n\u00e9ralement r\u00e9sistantes aux vibrations jusqu\u2019\u00e0 un rapport de 4:1 (longueur:diam\u00e8tre). Les barres en m\u00e9tal lourd, fabriqu\u00e9es \u00e0 partir d\u2019alliages de tungst\u00e8ne, sont plus denses que l\u2019acier et peuvent supporter des rapports L:D allant jusqu\u2019\u00e0 6:1. Les barres en carbure monobloc offrent une plus grande rigidit\u00e9 et permettent des rapports L:D allant jusqu\u2019\u00e0 8:1. Toutefois, ce dernier type de barre pr\u00e9sente l\u2019inconv\u00e9nient d\u2019un co\u00fbt \u00e9lev\u00e9, notamment pour les barres de grande taille.<\/p><p>Une m\u00e9thode alternative pour r\u00e9soudre le probl\u00e8me des vibrations consiste \u00e0 utiliser une barre \u00e0 amortissement r\u00e9glable. Cet outil pr\u00e9sente un amortisseur \u00e0 masse r\u00e9sonante interne, con\u00e7u pour entrer en r\u00e9sonance en d\u00e9phasage par rapport aux vibrations ind\u00e9sirables, absorber l\u2019\u00e9nergie et minimiser l\u2019amplitude de la vibration. Le syst\u00e8me STMD\u00ae de MAQ AB, par exemple, int\u00e8gre un amortisseur de vibrations auto-r\u00e9gulant compos\u00e9 d\u2019une masse en mat\u00e9riau \u00e0 haute densit\u00e9 suspendue \u00e0 l\u2019int\u00e9rieur de la barre du porte-outil par des \u00e9l\u00e9ments amortisseurs axo-radiaux. L\u2019amortisseur de masse absorbe imm\u00e9diatement la vibration lorsqu\u2019elle est transmise de l\u2019outil de coupe au corps de la barre.<\/p><p>Un contr\u00f4le actif des vibrations, plus complexe et co\u00fbteux, peut \u00eatre r\u00e9alis\u00e9 par des dispositifs \u00e9lectroniques capables de d\u00e9tecter les vibrations et par des actionneurs secondaires, \u00e9galement \u00e9lectroniques, pour produire un mouvement vibratoire dans le porte-outil afin d\u2019annuler celui ind\u00e9sirable induit par l\u2019usinage.<\/p><figure class=\"wp-block-embed is-type-video is-provider-vimeo wp-block-embed-vimeo wp-embed-aspect-16-9 wp-has-aspect-ratio\"><\/figure>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-847fda5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"847fda5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3c23c47\" data-id=\"3c23c47\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d8e26f6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d8e26f6\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-69d54e4\" data-id=\"69d54e4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9f9574f elementor-widget elementor-widget-text-editor\" data-id=\"9f9574f\" 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><iframe src=\"https:\/\/player.vimeo.com\/video\/671962187?h=69eb0af929&amp;dnt=1&amp;app_id=122963\" width=\"800\" height=\"450\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write\"><\/iframe><\/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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-50c2055 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"50c2055\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0772067\" data-id=\"0772067\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-feef63b elementor-widget elementor-widget-heading\" data-id=\"feef63b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Strat\u00e9gie d\u2019usinage<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f1bd0ee elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f1bd0ee\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-34e9b67\" data-id=\"34e9b67\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fe8d405 elementor-widget elementor-widget-text-editor\" data-id=\"fe8d405\" 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>Les pi\u00e8ces \u00e0 usiner doivent \u00eatre positionn\u00e9es avec pr\u00e9cision et solidement fix\u00e9es \u00e0 l\u2019int\u00e9rieur de la machine-outil. Les \u00e9l\u00e9ments de fixation doivent \u00eatre con\u00e7us en tenant compte avant tout de la simplicit\u00e9 et de la rigidit\u00e9, et doivent \u00eatre plac\u00e9s aussi pr\u00e8s que possible des zones de coupe. Du point de vue de la pi\u00e8ce, les r\u00e9gions avec des parois fines, les zones soud\u00e9es ou non support\u00e9es sont susceptibles de vibrer lors de l\u2019usinage. Ces parois devraient \u00eatre redessin\u00e9es pour am\u00e9liorer la rigidit\u00e9.<\/p><p>Pour minimiser les tendances aux vibrations, certaines strat\u00e9gies d\u2019usinage peuvent \u00eatre adopt\u00e9es :<\/p><ul class=\"wp-block-list\"><li>Utiliser un grand angle de r\u00e9glage et un angle de d\u00e9pouille positif.<\/li><li>Utiliser de petits rayons et angles de pointe.<\/li><li>Utiliser un insert positif (par exemple CCMT et non CNMG).<\/li><li>Utiliser une profondeur de coupe sup\u00e9rieure au rayon de l\u2019insert.<\/li><\/ul>\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-33d6b8d\" data-id=\"33d6b8d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8beb57f elementor-widget elementor-widget-image\" data-id=\"8beb57f\" 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<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"279\" height=\"500\" src=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/foto-di-gruppo-barre-antivibranti-verticale.jpeg\" class=\"attachment-full size-full wp-image-3119\" alt=\"\" srcset=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/foto-di-gruppo-barre-antivibranti-verticale.jpeg 279w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/foto-di-gruppo-barre-antivibranti-verticale-167x300.jpeg 167w\" sizes=\"(max-width: 279px) 100vw, 279px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Barres anti-vibration MAQ<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2478274 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2478274\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-10b296f\" data-id=\"10b296f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f053cff elementor-widget elementor-widget-heading\" data-id=\"f053cff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\uf0b7Les forces en jeu et les angles de r\u00e9glage<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c7f6343 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c7f6343\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f98bcb9\" data-id=\"f98bcb9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-80e900f elementor-widget elementor-widget-text-editor\" data-id=\"80e900f\" 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>\u00b7\u00a0Une force radiale inf\u00e9rieure permet de r\u00e9duire la flexion radiale et les probl\u00e8mes de vibration. Pour obtenir des r\u00e9sultats optimaux, il est pr\u00e9f\u00e9rable d\u2019utiliser une profondeur de coupe radiale sup\u00e9rieure au rayon de la pointe lorsqu\u2019un angle de r\u00e9glage de 90\u00b0 (angle d\u2019attaque de 0\u00b0) est utilis\u00e9. Si la profondeur de coupe radiale est inf\u00e9rieure, un angle de r\u00e9glage de 45\u00b0 donne les m\u00eames r\u00e9sultats.<\/p><p>\u00b7\u00a0Rediriger les forces peut permettre de r\u00e9duire la flexion :<\/p><p>\u00b7\u00a0Un angle de r\u00e9glage aussi proche que possible de 90\u00b0 (angle d\u2019attaque de 0\u00b0) maximise la part de la force d\u2019avance qui revient de la pi\u00e8ce usin\u00e9e en direction axiale. Une force en direction axiale g\u00e9n\u00e8re moins de flexion de l\u2019outil par rapport \u00e0 des forces \u00e9gales en direction radiale.<\/p><p>\u00b7\u00a0Pour le tournage int\u00e9rieur, l\u2019angle de r\u00e9glage ne doit jamais \u00eatre inf\u00e9rieur \u00e0 75\u00b0 (angle d\u2019attaque de 15\u00b0).<\/p><p>\u00b7\u00a0Plus l\u2019angle de d\u00e9pouille est positif, moins les forces de coupe n\u00e9cessaires pour usiner le composant seront \u00e9lev\u00e9es. Moins de forces de coupe signifient moins de flexion.<\/p><p>\u00b7\u00a0Moins de force en direction radiale g\u00e9n\u00e8re moins de flexion radiale.<\/p><p>\u00b7\u00a0Le per\u00e7age profond se distingue des autres op\u00e9rations car l\u2019outil agit dans le trou \u00e0 une grande distance par rapport \u00e0 la connexion avec la machine. Le tournage int\u00e9rieur profond pr\u00e9sente des conditions similaires et ces deux op\u00e9rations, le per\u00e7age et le tournage, peuvent \u00eatre amen\u00e9es \u00e0 travailler sur des trous avec des coupures interrompues, comme dans le cas des logements de pompes ou de compresseurs. La port\u00e9e de l\u2019outil est d\u00e9termin\u00e9e par la profondeur du trou et peut provoquer la d\u00e9flexion de la barre de per\u00e7age ou de l\u2019outil de tournage lorsqu\u2019il est \u00e9tendu.<\/p><p>La flexion augmente les forces variables du processus de coupe et peut provoquer des vibrations et des vibrations ind\u00e9sirables (chatter) qui d\u00e9gradent la qualit\u00e9 de la surface de la pi\u00e8ce, usent ou cassent rapidement les outils et endommagent les composants des machines-outils, tels que les broches. Les forces variables proviennent des d\u00e9s\u00e9quilibres des composants de la machine, du manque de rigidit\u00e9 du syst\u00e8me ou des vibrations induites par les \u00e9l\u00e9ments du syst\u00e8me. Les pressions de coupe changent \u00e9galement, car l\u2019outil subit des cycles de charge et de d\u00e9charge \u00e0 mesure que les copeaux se forment et se cassent. Les effets n\u00e9gatifs des vibrations comprennent une mauvaise finition de surface, des dimensions de trou impr\u00e9cises, une usure rapide des outils, une r\u00e9duction des taux d\u2019enl\u00e8vement, une augmentation des co\u00fbts de production, des dommages aux porte-outils et aux machines-outils.<\/p>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-602c0ad elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"602c0ad\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f64d78a\" data-id=\"f64d78a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-587a91d elementor-widget elementor-widget-heading\" data-id=\"587a91d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">comment r\u00e9duire les vibrations pendant l'usinage<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-034098f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"034098f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-a529cea\" data-id=\"a529cea\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-66a9b6c elementor-widget elementor-widget-text-editor\" data-id=\"66a9b6c\" 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>1. Les g\u00e9om\u00e9tries positives g\u00e9n\u00e8rent moins de vibrations<\/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-d0b4464 elementor-widget elementor-widget-image\" data-id=\"d0b4464\" 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=\"528\" height=\"234\" src=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2024\/12\/unnamed-1-1.png\" class=\"attachment-full size-full wp-image-7696\" alt=\"\" srcset=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2024\/12\/unnamed-1-1.png 528w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2024\/12\/unnamed-1-1-300x133.png 300w\" sizes=\"(max-width: 528px) 100vw, 528px\" \/>\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-08cc485\" data-id=\"08cc485\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ad07967 elementor-widget elementor-widget-text-editor\" data-id=\"ad07967\" 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>3. Un tranchant aff\u00fbt\u00e9 et non us\u00e9 g\u00e9n\u00e8re moins de vibrations.<\/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-6071792 elementor-widget elementor-widget-image\" data-id=\"6071792\" 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=\"519\" height=\"198\" src=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2024\/12\/unnamed-1-2.png\" class=\"attachment-full size-full wp-image-7700\" alt=\"\" srcset=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2024\/12\/unnamed-1-2.png 519w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2024\/12\/unnamed-1-2-300x114.png 300w\" sizes=\"(max-width: 519px) 100vw, 519px\" \/>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-957c26c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"957c26c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9c6b988\" data-id=\"9c6b988\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e2a430f elementor-widget elementor-widget-text-editor\" data-id=\"e2a430f\" 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>2. Les petits rayons des plaquettes g\u00e9n\u00e8rent moins de vibrations<\/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-5a975ca elementor-widget elementor-widget-image\" data-id=\"5a975ca\" 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=\"592\" height=\"248\" src=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2024\/12\/unnamed-1-3.png\" class=\"attachment-full size-full wp-image-7704\" alt=\"\" srcset=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2024\/12\/unnamed-1-3.png 592w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2024\/12\/unnamed-1-3-300x126.png 300w\" sizes=\"(max-width: 592px) 100vw, 592px\" \/>\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-091edaf\" data-id=\"091edaf\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c4efcbc elementor-widget elementor-widget-text-editor\" data-id=\"c4efcbc\" 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>4. Angles d&rsquo;attaque proches de 90\u00b0 pour r\u00e9duire les forces radiales<\/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-c157d50 elementor-widget elementor-widget-image\" data-id=\"c157d50\" 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=\"548\" height=\"230\" src=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2024\/12\/unnamed-1-4.png\" class=\"attachment-full size-full wp-image-7708\" alt=\"\" srcset=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2024\/12\/unnamed-1-4.png 548w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2024\/12\/unnamed-1-4-300x126.png 300w\" sizes=\"(max-width: 548px) 100vw, 548px\" \/>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-57bb1ba elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"57bb1ba\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4aa6405\" data-id=\"4aa6405\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3063bae elementor-widget elementor-widget-heading\" data-id=\"3063bae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\uf0b7La technologie d\u2019absorption auto-accord\u00e9e<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-04bb795 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"04bb795\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-81c6b56\" data-id=\"81c6b56\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-de4618c elementor-widget elementor-widget-text-editor\" data-id=\"de4618c\" 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>La technologie d\u2019amortisseur harmonique auto-accord\u00e9 (STMD, de l\u2019anglais <strong>Self Tuning Mass Damper<\/strong>) est la meilleure technologie disponible sur le march\u00e9 \u00e0 ce jour. Le concept de base du \u201cmass damper\u201d est connu depuis des ann\u00e9es et appliqu\u00e9 dans de nombreux secteurs : gratte-ciel, ponts, outils, machines, etc.<\/p><p>L\u2019innovation technologique apport\u00e9e par l\u2019entreprise su\u00e9doise MAQ-AB, qui d\u00e9tient les brevets internationaux, r\u00e9side dans la capacit\u00e9 du syst\u00e8me \u00e0 s\u2019adapter \u00e0 la fr\u00e9quence naturelle de vibration de l\u2019ensemble machine-outil. Cette fr\u00e9quence est en effet dict\u00e9e par de nombreux facteurs (le type de sol, l\u2019ancrage de la machine-outil, l\u2019\u00e9tat d\u2019usure des roulements de broche, les tol\u00e9rances d\u2019ajustement du syst\u00e8me porte-outil, etc.); deux machines identiques, \u00e9quip\u00e9es du m\u00eame outil avec la m\u00eame port\u00e9e, auront des fr\u00e9quences de vibration diff\u00e9rentes. Cette capacit\u00e9 \u00e0 s\u2019adapter \u00e0 la fr\u00e9quence de vibration permet aux outils MAQ-AB d\u2019obtenir des performances optimales quelle que soit l\u2019exposition de l\u2019outil. En d\u2019autres termes, l\u2019utilisateur n\u2019a pas besoin de faire un r\u00e9glage, et l\u2019outil se comporte toujours de la meilleure mani\u00e8re, ind\u00e9pendamment du rapport entre la longueur expos\u00e9e et le diam\u00e8tre de la barre utilis\u00e9e.<\/p><p>Gaspari Utensili est distributeur officiel des barres anti-vibrations MAQ-AB pour l\u2019Italie. Vous pouvez trouver le catalogue des barres standard dans la section de t\u00e9l\u00e9chargement du site. Nous pouvons \u00e9galement r\u00e9aliser des barres sp\u00e9ciales sur demande, m\u00eame de grandes dimensions (jusqu\u2019\u00e0 \u00f8500 mm et longueur 10Xd), d\u00e9velopp\u00e9es sur projet sp\u00e9cifique.<\/p>\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cc2a15e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cc2a15e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c80403b\" data-id=\"c80403b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-148601e elementor-widget elementor-widget-image\" data-id=\"148601e\" 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<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1920\" src=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/IMG_1572_def-scaled.jpg\" class=\"attachment-full size-full wp-image-3123\" alt=\"\" srcset=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/IMG_1572_def-scaled.jpg 2560w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/IMG_1572_def-scaled-600x450.jpg 600w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/IMG_1572_def-300x225.jpg 300w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/IMG_1572_def-1024x768.jpg 1024w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/IMG_1572_def-768x576.jpg 768w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/IMG_1572_def-1536x1152.jpg 1536w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/IMG_1572_def-2048x1536.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Dr. Ing. Qilin Fu de MAQ-AB et Gaspari alessio, \u00e0 l'arri\u00e8re-plan une barre anti-vibration de \u00f8350MM l. 5400mm<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>la vibration L&rsquo;effet des vibrations sur la finition de l&rsquo;usinage Le terme vibration d\u00e9signe une oscillation m\u00e9canique autour d\u2019un point d\u2019\u00e9quilibre. Les vibrations repr\u00e9sentent un ph\u00e9nom\u00e8ne ind\u00e9sirable en m\u00e9canique ; elles provoquent en effet une dissipation d\u2019\u00e9nergie et g\u00e9n\u00e8rent des bruits et des sons non souhait\u00e9s. Les vibrations peuvent \u00e9galement causer des dommages \u00e0 l\u2019outil [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6730,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[85],"tags":[],"class_list":["post-9417","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles-techniques"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Barres anti-vibration - Gaspari<\/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:\/\/gaspariutensili.it\/fr\/articles-techniques\/barres-anti-vibration\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Barres anti-vibration - Gaspari\" \/>\n<meta property=\"og:description\" content=\"la vibration L&rsquo;effet des vibrations sur la finition de l&rsquo;usinage Le terme vibration d\u00e9signe une oscillation m\u00e9canique autour d\u2019un point d\u2019\u00e9quilibre. Les vibrations repr\u00e9sentent un ph\u00e9nom\u00e8ne ind\u00e9sirable en m\u00e9canique ; elles provoquent en effet une dissipation d\u2019\u00e9nergie et g\u00e9n\u00e8rent des bruits et des sons non souhait\u00e9s. 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