{"id":3059,"date":"2018-08-23T21:16:32","date_gmt":"2018-08-23T21:16:32","guid":{"rendered":"https:\/\/www.adcolegage.com\/it\/?p=3059"},"modified":"2026-04-15T14:15:19","modified_gmt":"2026-04-15T14:15:19","slug":"have-you-purchased-a-diameter-gage-or-a-roundness-gage","status":"publish","type":"post","link":"https:\/\/www.adcolegage.com\/it\/blog\/2018\/08\/23\/have-you-purchased-a-diameter-gage-or-a-roundness-gage\/","title":{"rendered":"Hai acquistato un calibro di diametro o un calibro di rotondit\u00e0?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3059\" class=\"elementor elementor-3059\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4abfc409 e-con-full e-flex e-con e-parent\" data-id=\"4abfc409\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5a30b2d interior-banner interior-banner--grayscale e-flex e-con-boxed e-con e-child\" data-id=\"5a30b2d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-175e4935 e-con-full e-flex e-con e-child\" data-id=\"175e4935\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2ab1c4aa heading1 elementor-widget elementor-widget-heading\" data-id=\"2ab1c4aa\" 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\">Hai acquistato un calibro di diametro o un calibro di rotondit\u00e0?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f0b15b elementor-widget elementor-widget-heading\" data-id=\"5f0b15b\" 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<span class=\"elementor-heading-title elementor-size-default\">Documentazione tecnica<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-657d0e80 e-flex e-con-boxed e-con e-child\" data-id=\"657d0e80\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-23ecc5da elementor-hidden-mobile elementor-widget elementor-widget-hfe-breadcrumbs-widget\" data-id=\"23ecc5da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"hfe-breadcrumbs-widget.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<nav aria-label=\"Breadcrumb\"><ul class=\"hfe-breadcrumbs hfe-breadcrumbs-show-home\"><li class=\"hfe-breadcrumbs-item hfe-breadcrumbs-first\"><span class=\"hfe-breadcrumbs-home-icon\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"14\" height=\"13\" viewBox=\"0 0 14 13\" fill=\"none\"><path d=\"M13.4766 6.92523C13.4766 7.34711 13.125 7.67523 12.7266 7.67523H11.9766L12 11.4252C12 12.269 11.3203 12.9252 10.5 12.9252H3C2.15625 12.9252 1.5 12.269 1.5 11.4252V7.67523H0.75C0.328125 7.67523 0 7.34711 0 6.92523C0 6.71429 0.0703125 6.52679 0.234375 6.36273L6.23438 1.13617C6.39844 0.972107 6.58594 0.925232 6.75 0.925232C6.91406 0.925232 7.10156 0.995544 7.24219 1.11273L13.2188 6.36273C13.4062 6.52679 13.5 6.71429 13.4766 6.92523Z\" fill=\"#002F86\"><\/path><\/svg><\/span><a href=\"https:\/\/www.adcolegage.com\/it\"><span class=\"hfe-breadcrumbs-text\"><\/span><\/a><\/li><\/ul><\/nav>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-632f0452 elementor-tablet-position-inline-start elementor-mobile-position-inline-start breadcrumbs-back elementor-hidden-desktop elementor-hidden-tablet elementor-view-default elementor-position-block-start elementor-widget elementor-widget-icon-box\" data-id=\"632f0452\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\t\t\t<div class=\"elementor-icon-box-icon\">\n\t\t\t\t<a href=\"\/\" class=\"elementor-icon\" tabindex=\"-1\" aria-label=\"Back to Previous\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-arrow-left\"><\/i>\t\t\t\t<\/a>\n\t\t\t<\/div>\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-box-title\">\n\t\t\t\t\t\t<a href=\"\/\" >\n\t\t\t\t\t\t\tBack to Previous\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/span>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3ac560df elementor-widget elementor-widget-post-info\" data-id=\"3ac560df\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"post-info.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-2492c82 elementor-inline-item\" itemprop=\"datePublished\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\n\t\t\t\t\t\t\t\t\t\t<time>23\/08\/2018<\/time>\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-400bcd65 e-flex e-con-boxed e-con e-parent\" data-id=\"400bcd65\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-3a34576b e-con-full e-flex e-con e-child\" data-id=\"3a34576b\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-11bf39bf elementor-widget elementor-widget-text-editor\" data-id=\"11bf39bf\" 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>Adcole<\/p>\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-74205b92 elementor-widget elementor-widget-text-editor\" data-id=\"74205b92\" 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>Se \u00e8 la prima volta che affrontate il processo di acquisto di un calibro cilindrico, vi troverete di fronte a un&#8217;ampia gamma di scelte. Quando si tratta di parti cilindriche, \u00e8 possibile scegliere tra una macchina che effettua misurazioni radiali utilizzando una sonda a punto singolo (di solito un calibro di rotondit\u00e0) o una che utilizza punti di contatto per la misurazione del diametro (un calibro di diametro). Ciascuna ha applicazioni specifiche. In entrambi i casi, i trasduttori di misura funzionano perpendicolarmente all&#8217;asse del pezzo. Con il calibro a punta opposta, \u00e8 meno critico controllare l&#8217;asse del pezzo rispetto alle sonde di misura. Un&#8217;eccentricit\u00e0 relativamente grande nel mandrino ha un effetto minore sul tipo di misura (diametri) che esegue. Quando il pezzo si sposta verso una sonda, si allontana dall&#8217;altra. La misura relativa delle dimensioni del pezzo rimane quindi la stessa (anche se il movimento verticale del pezzo pu\u00f2 influire sul risultato quando si utilizza un seguace arrotondato). Con un sistema di questo tipo, \u00e8 possibile utilizzare un mandrino meno costoso con un&#8217;eccentricit\u00e0 relativamente elevata senza influire negativamente sulla misura.<\/p><p><strong>Tuttavia, un sistema a due punti non \u00e8 sufficiente per misurare la rotondit\u00e0. Ecco perch\u00e9:<\/strong><\/p><p>Immaginate un cilindro con un motivo a tre quarti o a &#8221; trifoglio&#8221; lungo la sua circonferenza. Quando una delle sonde entra in una valle, l&#8217;altra si avvicina a un picco. Per il calibro di diametro a due punti, questa parte appare rotonda. Questo non \u00e8 certamente ci\u00f2 che vogliamo quando misuriamo una caratteristica cos\u00ec importante come la rotondit\u00e0! \u00c8 invece necessario un calibro a contatto singolo (radiale). (Nota: questo tipo di calibro entra in contatto con un punto alla volta, ma il pezzo viene ruotato per raccogliere il set di dati completo). Il calibro a contatto singolo pu\u00f2 offrire molto di pi\u00f9 delle misurazioni del diametro. Tuttavia, c&#8217;\u00e8 un prezzo da pagare. Per eseguire misurazioni radiali accurate, \u00e8 necessario controllare l&#8217;asse del pezzo mentre ruota per la misurazione. Ci\u00f2 richiede un sistema in grado di bloccare saldamente il pezzo introducendo un errore di eccentricit\u00e0 minimo. Un mandrino di precisione \u00e8 quindi essenziale con questo calibro. Se si tiene conto del peso del pezzo, \u00e8 necessario un tipo di mandrino di precisione altamente specializzato. Ci\u00f2 spiega gran parte della differenza di prezzo tra un calibro di diametro e un calibro di rotondit\u00e0 o di profilo.<\/p><p><strong>Un errore comune \u00e8 quello di acquistare un calibro a due punti in base al prezzo, solo per scoprire in seguito che non \u00e8 in grado di ispezionare caratteristiche importanti come il profilo, le vibrazioni e la rotondit\u00e0.<\/strong><\/p><p>Ma dove il calibro a due punti di contatto non \u00e8 in grado di fornire la rotondit\u00e0, quello a punto singolo pu\u00f2 fornire il diametro. Questo perch\u00e9 l&#8217;intera nuvola di punti viene memorizzata rispetto al centro preciso del pezzo. Quindi basta applicare un po&#8217; di matematica per ottenere il diametro medio, il diametro massimo-minimo a due punti, ecc.<\/p><p>Attenzione ai calibri a due punti che tentano di imitare i risultati dei calibri a punto singolo. Termini come &#8220;rotondit\u00e0 diametrale&#8221; e &#8220;ovalit\u00e0&#8221; sono utilizzati come tentativi matematici di approssimare una misurazione della rotondit\u00e0. In nessuna parte degli standard di rotondit\u00e0 (ISO, ANSI o JIS) \u00e8 prevista un&#8217;eccezione che consenta la manipolazione dei dati del lato opposto. Sebbene la misurazione dell&#8217;ovalit\u00e0 possa avere un certo valore (ma esistono modi migliori per quantificare tale errore), NON sostituisce una vera misurazione della rotondit\u00e0.<\/p><p>A volte vale la pena investire un po&#8217; di pi\u00f9 in anticipo per ottenere un calibro in grado di effettuare TUTTE le misurazioni richieste dal vostro progetto o da un progetto futuro.<\/p>\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-12fb418b elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"12fb418b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d84250a elementor-icon-list--layout-inline elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"d84250a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items elementor-inline-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">CCMM<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"#\">\n\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Calibri per alberi GD&amp;T<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-407ac3bf e-con-full e-flex e-con e-child\" data-id=\"407ac3bf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-18d01edc elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"18d01edc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-40fa99f7 elementor-widget elementor-widget-text-editor\" data-id=\"40fa99f7\" 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>Strumenti e software correlati<\/p>\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-1a8b96cc elementor-align-end elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"1a8b96cc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.adcolegage.com\/it\/shaft-metrology\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-arrow-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Calibri Adcole per rotondit\u00e0 e diametro<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-783667b4 e-flex e-con-boxed e-con e-parent\" data-id=\"783667b4\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-5f19e043 e-con-full e-flex e-con e-child\" data-id=\"5f19e043\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-28b64426 e-con-full e-flex e-con e-child\" data-id=\"28b64426\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-694788e3 eyebrow-heading elementor-widget elementor-widget-heading\" data-id=\"694788e3\" 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<span class=\"elementor-heading-title elementor-size-default\">Hai domande?<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-14264fb2 heading3 elementor-widget elementor-widget-heading\" data-id=\"14264fb2\" 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\">Contatta i nostri esperti<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c52cc2 e-con-full e-flex e-con e-child\" data-id=\"c52cc2\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-131f8327 elementor-widget elementor-widget-shortcode\" data-id=\"131f8327\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><script>\nvar gform;gform||(document.addEventListener(\"gform_main_scripts_loaded\",function(){gform.scriptsLoaded=!0}),document.addEventListener(\"gform\/theme\/scripts_loaded\",function(){gform.themeScriptsLoaded=!0}),window.addEventListener(\"DOMContentLoaded\",function(){gform.domLoaded=!0}),gform={domLoaded:!1,scriptsLoaded:!1,themeScriptsLoaded:!1,isFormEditor:()=>\"function\"==typeof InitializeEditor,callIfLoaded:function(o){return!(!gform.domLoaded||!gform.scriptsLoaded||!gform.themeScriptsLoaded&&!gform.isFormEditor()||(gform.isFormEditor()&&console.warn(\"The use of 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