{"id":3171,"date":"2022-01-20T14:34:35","date_gmt":"2022-01-20T14:34:35","guid":{"rendered":"http:\/\/gaspariutensili.it\/anti-vibration-bars-and-bars\/"},"modified":"2022-04-24T17:56:03","modified_gmt":"2022-04-24T17:56:03","slug":"anti-vibration-bars-and-bars","status":"publish","type":"page","link":"https:\/\/gaspariutensili.it\/en\/anti-vibration-bars-and-bars\/","title":{"rendered":"Anti-vibration bars and bars"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"3171\" class=\"elementor elementor-3171 elementor-1050\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-50968c34 elementor-section-height-min-height elementor-section-full_width elementor-section-items-bottom elementor-section-content-top elementor-section-height-default\" data-id=\"50968c34\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-3e7afffd animated-fast elementor-invisible\" data-id=\"3e7afffd\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;animation&quot;:&quot;fadeInUp&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-4a070986 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"4a070986\" 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-inner-column elementor-element elementor-element-54452c2e\" data-id=\"54452c2e\" 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-3694fb91 elementor-widget elementor-widget-heading\" data-id=\"3694fb91\" 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<h1 class=\"elementor-heading-title elementor-size-default\">Anti-vibration bars<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e51d85f elementor-widget elementor-widget-text-editor\" data-id=\"5e51d85f\" 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><span style=\"font-weight: 400;\">What the causes and effects of vibration are? How to resolve them?\u00a0<\/span><\/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<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-39158b12\" data-id=\"39158b12\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-1f58d5eb elementor-widget elementor-widget-heading\" data-id=\"1f58d5eb\" 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<h3 class=\"elementor-heading-title elementor-size-default\">contact us<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5aac5e3e elementor-widget elementor-widget-text-editor\" data-id=\"5aac5e3e\" 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>Via Lago di Costanza, 46<br \/>36015 Schio (VI)<br \/>(+39) 0445.576314<br \/>commerciale@gaspariutensili.it<\/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\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-431a436f elementor-section-height-min-height elementor-section-boxed elementor-section-height-default elementor-section-items-middle\" data-id=\"431a436f\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-db7ce10\" data-id=\"db7ce10\" 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-49b84f56 animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"49b84f56\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInRight&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Anti-vibration bars<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1feb8b9f elementor-widget elementor-widget-text-editor\" data-id=\"1feb8b9f\" 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><span style=\"font-weight: 400;\">In this article we will explore the topic of<\/span> <b>vibration in the turning and boring phase of a mechanical component<\/b><span style=\"font-weight: 400;\">, analyzing its causes and effects. We will then move on to the definition of the solutions useful for containing this phenomenon. <\/span><\/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-7ccf12da elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7ccf12da\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-71e5ce0e\" data-id=\"71e5ce0e\" 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-36fdcc87 gallery-spacing-custom elementor-widget elementor-widget-image-gallery\" data-id=\"36fdcc87\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-gallery\">\n\t\t\t<div id='gallery-1' class='gallery galleryid-3171 gallery-columns-3 gallery-size-full'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"36fdcc87\" data-elementor-lightbox-title=\"unnamed\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6Mjc3NywidXJsIjoiaHR0cHM6XC9cL2dhc3Bhcml1dGVuc2lsaS5pdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMTJcL3VubmFtZWQucG5nIiwic2xpZGVzaG93IjoiMzZmZGNjODcifQ%3D%3D\" href='https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed.png'><img fetchpriority=\"high\" decoding=\"async\" width=\"1473\" height=\"828\" src=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed.png\" class=\"attachment-full size-full\" alt=\"\" aria-describedby=\"gallery-1-2777\" srcset=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed.png 1473w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed-600x337.png 600w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed-300x169.png 300w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed-1024x576.png 1024w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed-768x432.png 768w\" sizes=\"(max-width: 1473px) 100vw, 1473px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-2777'>\n\t\t\t\tSource: dr. Ing. Qilin Fu, Maq-ab in &#8220;Distributor training presentation 2020-12-01&#8221;\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"36fdcc87\" data-elementor-lightbox-title=\"unnamed (1)\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6Mjc3NiwidXJsIjoiaHR0cHM6XC9cL2dhc3Bhcml1dGVuc2lsaS5pdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMTJcL3VubmFtZWQtMS5wbmciLCJzbGlkZXNob3ciOiIzNmZkY2M4NyJ9\" href='https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed-1.png'><img decoding=\"async\" width=\"1473\" height=\"828\" src=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed-1.png\" class=\"attachment-full size-full\" alt=\"\" aria-describedby=\"gallery-1-2776\" srcset=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed-1.png 1473w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed-1-600x337.png 600w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed-1-300x169.png 300w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed-1-1024x576.png 1024w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/unnamed-1-768x432.png 768w\" sizes=\"(max-width: 1473px) 100vw, 1473px\" \/><\/a>\n\t\t\t<\/div>\n\t\t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-2776'>\n\t\t\t\tSource: dr. Ing. Qilin Fu, Maq-ab in &#8220;Distributor training presentation 2020-12-01&#8221;\n\t\t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"36fdcc87\" data-elementor-lightbox-title=\"group photo of anti-vibration bars\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6Mjc4OCwidXJsIjoiaHR0cHM6XC9cL2dhc3Bhcml1dGVuc2lsaS5pdFwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyMVwvMTJcL2ZvdG8tZGktZ3J1cHBvLWJhcnJlLWFudGl2aWJyYW50aS5qcGVnIiwic2xpZGVzaG93IjoiMzZmZGNjODcifQ%3D%3D\" href='https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/foto-di-gruppo-barre-antivibranti.jpeg'><img decoding=\"async\" width=\"1000\" height=\"443\" src=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/foto-di-gruppo-barre-antivibranti.jpeg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/foto-di-gruppo-barre-antivibranti.jpeg 1000w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/foto-di-gruppo-barre-antivibranti-600x266.jpeg 600w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/foto-di-gruppo-barre-antivibranti-300x133.jpeg 300w, https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/foto-di-gruppo-barre-antivibranti-768x340.jpeg 768w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\t\t<\/div>\n\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-dc017bb elementor-section-height-min-height elementor-section-full_width elementor-section-items-stretch elementor-section-height-default\" data-id=\"dc017bb\" data-element_type=\"section\" data-e-type=\"section\" id=\"paint\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-6ae4264e\" data-id=\"6ae4264e\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-77b7cdea elementor-widget elementor-widget-spacer\" data-id=\"77b7cdea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\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-7c954bb4\" data-id=\"7c954bb4\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-352147c2 animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"352147c2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInRight&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">The vibration\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16efce48 elementor-widget elementor-widget-text-editor\" data-id=\"16efce48\" 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><span style=\"font-weight: 400;\">The term vibration refers to a mechanical oscillation around an equilibrium point. Vibrations are an undesirable phenomenon in mechanics; in fact, they cause energy dispersion and create unwanted sounds and noises. Vibrations can also cause damage to the tool, the machinery and the workpiece.<\/span><\/p><p><span style=\"font-weight: 400;\">Noise and vibrations are caused by three main factors:<\/span><\/p><ol><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">piece clamping on the machine tool<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">shape of the tool<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">machining strategy and tool path<\/span><\/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-381fb08b elementor-section-height-min-height elementor-section-full_width elementor-section-items-stretch elementor-reverse-mobile elementor-section-height-default\" data-id=\"381fb08b\" data-element_type=\"section\" data-e-type=\"section\" id=\"restorations\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-23566f72\" data-id=\"23566f72\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-32744c63 animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"32744c63\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInLeft&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Vibration control\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7adaad13 elementor-widget elementor-widget-text-editor\" data-id=\"7adaad13\" 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><span style=\"font-weight: 400;\">The basic approach to vibration control during machining is to increase the stiffness of the system elements. To limit unwanted movements, the machine tool must be built with rigid and heavy structural elements, reinforced with concrete or other vibration absorption material such as cast iron. Machine bearings and bushings must have close tolerances and be robust.<\/span><\/p><p><span style=\"font-weight: 400;\">To maximize rigidity, a boring or turning bar should be as short as possible, but long enough to access the depth of the hole or component. The diameter of the boring bar should be as large as the diameter of the hole allows, still allowing for efficient chip evacuation.<\/span><\/p><p><span style=\"font-weight: 400;\">As the chips form and break, the cutting forces increase and decrease. These variations become a source of vibrations, which in turn can create a resonance on the natural frequency of the tool holder or machine, thus becoming self-powered or even increasing. Other sources of vibration are worn tools or tools that do not make a deep enough pass. These cause process instability or resonance at the same natural frequency as the spindle or tool generating unwanted vibrations.<\/span><\/p><p><span style=\"color: var( --e-global-color-1a0ed66f ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-size: var( --e-global-typography-text-font-size ); font-style: var( --e-global-typography-text-font-style ); text-transform: var( --e-global-typography-text-text-transform ); background-color: var( --e-global-color-primary );\">A long boring bar or a large overhang of the turning bar can cause vibrations in the machine. The basic approach to vibration control involves the use of short, stiff tools. The greater the ratio of bar length to diameter, the greater the possibility of vibrations occurring.<\/span><\/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<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-284a8b75\" data-id=\"284a8b75\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-112bd2b4 elementor-widget elementor-widget-spacer\" data-id=\"112bd2b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\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-77a6c1f3 elementor-section-height-min-height elementor-section-full_width elementor-section-items-stretch elementor-section-height-default\" data-id=\"77a6c1f3\" data-element_type=\"section\" data-e-type=\"section\" id=\"mechanical\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-23827709\" data-id=\"23827709\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-5ee327fd elementor-widget elementor-widget-spacer\" data-id=\"5ee327fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\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-77702037\" data-id=\"77702037\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-5031a56e animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"5031a56e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInRight&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">types of anti-vibration bars<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-313a5978 elementor-widget elementor-widget-text-editor\" data-id=\"313a5978\" 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><span style=\"font-weight: 400;\">The different materials of the bars offer different behavior. Steel bars are generally vibration resistant up to a 4:1 bar ratio (length:diameter). Heavy metal bars, made from tungsten alloys, are denser than steel and can handle L:D ratios of up to 6:1. Solid carbide bars offer increased stiffness and allow L:D ratios up to 8:1. The latter type of bars, however, has the disadvantage of a high cost, especially on large bars.<\/span><\/p><p><span style=\"color: var( --e-global-color-text ); background-color: var( --e-global-color-617b1d17 );\">An alternative way to tackle the vibration problem is to use an adjustable damping bar. This tool features an internal resonant mass damper, designed to resonate out of phase with unwanted vibrations, absorb energy and minimize vibration amplitude. The STMD system<\/span><span style=\"color: var( --e-global-color-text ); background-color: var( --e-global-color-617b1d17 );\">\u00ae<\/span><span style=\"color: var( --e-global-color-text ); background-color: var( --e-global-color-617b1d17 );\">\u00a0by MAQ AB, for example, has a self-adjusting vibration damper consisting of a mass of high-density material suspended inside the tool holder bar by means of axial-radial damping elements. The mass damper immediately absorbs the vibration as it is transmitted from the cutting tool to the bar body.<\/span><\/p><p><span style=\"font-weight: 400;\">An active vibration control, more complex and expensive, is made with electronic devices capable of detecting vibrations and with secondary actuators, also electronic, to produce a vibrational motion in the tool holder to cancel the unwanted motion induced by the machining.<\/span><\/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-56d75938 elementor-section-height-min-height elementor-section-full_width elementor-section-items-stretch elementor-reverse-mobile elementor-section-height-default\" data-id=\"56d75938\" data-element_type=\"section\" data-e-type=\"section\" id=\"engine\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-439daf90\" data-id=\"439daf90\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-4a6c5ee0 animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"4a6c5ee0\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInLeft&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Processing strategy<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-acc210c elementor-widget elementor-widget-text-editor\" data-id=\"acc210c\" 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><span style=\"font-weight: 400;\">The workpieces must be positioned accurately and securely locked inside the machine tool. Clamping elements must be designed with primary concern for simplicity and rigidity, and they must also be positioned as close as possible to the cutting operations. Thin-walled, welded, or unsupported regions of the part are subject to vibration when machined. These regions should be re-designed to improve stiffness.<\/span><\/p><p><span style=\"font-weight: 400;\">To minimize the tendencies to vibrations, some machining strategies can be adopted:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using a large entering angle and a positive rake angle.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using small radii and corner angles.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using a positive insert (e.g. CCMT and not CNMG).<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using a depth of cut that is larger than the insert radius.<\/span><\/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-50 elementor-top-column elementor-element elementor-element-5b2ab81f\" data-id=\"5b2ab81f\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-17745a2f elementor-widget elementor-widget-spacer\" data-id=\"17745a2f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\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-508e1f4 elementor-section-height-min-height elementor-section-full_width elementor-section-items-stretch elementor-section-height-default\" data-id=\"508e1f4\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-183985b\" data-id=\"183985b\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-7a7f8e6 elementor-widget elementor-widget-spacer\" data-id=\"7a7f8e6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\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-4a09be5\" data-id=\"4a09be5\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-76b72c8 animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"76b72c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInRight&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">The forces involved and the angles of entry\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-51f5ced elementor-widget elementor-widget-text-editor\" data-id=\"51f5ced\" 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><span style=\"font-weight: 400;\">Less radial force results in less radial deflection and fewer vibration problems. For best results, it is preferable to use a radial depth of cut greater than the nose radius when using a 90\u00b0 entering angle (0\u00b0 lead angle). If the radial depth of cut is smaller, a 45\u00b0 entering angle gives the same results.<\/span><\/p><h4><span style=\"font-weight: 400;\">Redirecting forces can help reduce deflection.<\/span><\/h4><p><span style=\"font-weight: 400;\">An entering angle as close to 90\u00b0 as possible (0\u00b0 lead angle) maximizes the portion of the feed force returning from the machined workpiece in the axial direction. A force in the axial direction generates less deflection of the tool than equal forces in the radial direction.<\/span><\/p><p><span style=\"font-weight: 400;\">For internal turning, the entering angle must never be less than 75\u00b0 (lead angle 15 \u00b0).<\/span><\/p><p><span style=\"font-weight: 400;\">The more positive the rake angle, the less cutting forces are required to machine the component. Lower cutting forces mean less deflection.<\/span><\/p><p><span style=\"font-weight: 400;\">Less force in the radial direction results in less radial deflection.<\/span><\/p><p><span style=\"font-weight: 400;\">Deep boring differs from other machining in that the cutting edge operates in the hole at a large distance from the connection to the machine. Deep internal turning has similar conditions and both of these operations, boring and turning, may have to machine holes with interrupted cuts, as is the case with pump or compressor housings. Tool overhang is dictated by the depth of the hole and can cause deflection of the boring bar or extended length turning tool.<\/span><\/p><p><span style=\"font-weight: 400;\">Bending increases the varying forces of the cutting process and can cause vibrations and chatters that degrade the surface quality of the part, quickly wear or break tools, and damage machine tool components, such as spindles. Variable forces arise from imbalances of machine components, lack of system rigidity or induced vibrations of system elements. Cutting pressures also change as the tool undergoes load and unload cycles as chips form and break. Negative effects of vibration include poor surface finish, inaccurate hole sizes, rapid tool wear, reduced stock removal rates, increased manufacturing costs, and damage to tool holders and machine tools.<\/span><\/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-c7489f0 elementor-section-height-min-height elementor-section-full_width elementor-section-items-stretch elementor-reverse-mobile elementor-section-height-default\" data-id=\"c7489f0\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-d6ff8a8\" data-id=\"d6ff8a8\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-c6f3e3a animated-fast elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"c6f3e3a\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInLeft&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Self-Tuning Absorption Technology<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-923d250 elementor-widget elementor-widget-text-editor\" data-id=\"923d250\" 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><span style=\"font-weight: 400;\">The self-tuning harmonic absorber technology (<\/span><b style=\"color: var( --e-global-color-1a0ed66f ); background-color: var( --e-global-color-primary );\">Self Tuning Mass Damper, or STMD<\/b><span style=\"color: var( --e-global-color-1a0ed66f ); background-color: var( --e-global-color-primary );\">) is the best technology available today. The basic concept of &#8220;mass dumper&#8221; has been known for years and applied in many sectors: skyscrapers, bridges, tools, machinery, and more.<\/span><\/p><p><span style=\"font-weight: 400;\">The technological innovation brought to the market by the Swedish company MAQ AB, which holds international patents, lies in the system&#8217;s ability to adapt to the natural vibration frequency of the machine-tool assembly. This frequency is in fact dictated by innumerable factors (the type of floor, the anchoring of the machine tool, the state of wear of the spindle bearings, the coupling tolerances of the tool holder system, and so on); two identical machines, which mount the same tool at the same projection, will certainly have different vibration frequencies. This ability to adapt to the vibration frequency allows MAQ AB tools to achieve optimal performance at any tool exposure. That is, the user does not have to make any calibration and the tool always behaves in the best way, regardless of the relationship between the exposed length and the diameter of the bar used.<\/span><\/p><p><span style=\"font-weight: 400;\">Gaspari Utensili is the<strong> official distributor<\/strong> of MAQ AB anti-vibration bars for Italy. A standard bars catalog can be downloaded <a href=\"https:\/\/gaspariutensili.it\/wp-content\/uploads\/2021\/12\/MAQ-Catalogue-2020-07-28.pdf\" data-wplink-edit=\"true\">here<\/a>. We can also make special bars on request, up to \u00f8500 mm and length 10Xd, developed on a specific project. <\/span><\/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<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-397648d\" data-id=\"397648d\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-918bcc7 elementor-widget elementor-widget-spacer\" data-id=\"918bcc7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\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>Anti-vibration bars What the causes and effects of vibration are? How to resolve them?\u00a0 contact us Via Lago di Costanza, 4636015 Schio (VI)(+39) 0445.576314commerciale@gaspariutensili.it Anti-vibration bars In this article we will explore the topic of vibration in the turning and boring phase of a mechanical component, analyzing its causes and effects. We will then move [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-3171","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Anti-vibration bars and bars - 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\/en\/anti-vibration-bars-and-bars\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Anti-vibration bars and bars - Gaspari\" \/>\n<meta property=\"og:description\" content=\"Anti-vibration bars What the causes and effects of vibration are? How to resolve them?\u00a0 contact us Via Lago di Costanza, 4636015 Schio (VI)(+39) 0445.576314commerciale@gaspariutensili.it Anti-vibration bars In this article we will explore the topic of vibration in the turning and boring phase of a mechanical component, analyzing its causes and effects. 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