1.0PartsMasteryhttps://partsmastery.com/frPMEdithttps://partsmastery.com/fr/author/pmedit/rich600338<blockquote class="wp-embedded-content" data-secret="thwefoK78z"><a href="https://partsmastery.com/fr/precision-boring-machining-processes-tolerances-applications/">Alésage de précision : procédés, tolérances et applications</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://partsmastery.com/fr/precision-boring-machining-processes-tolerances-applications/embed/#?secret=thwefoK78z" width="600" height="338" title="« Usinage de perçage de précision : procédés, tolérances et applications » — PartsMastery" data-secret="thwefoK78z" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://partsmastery.com/wp-includes/js/wp-embed.min.js </script>https://partsmastery.com/wp-content/uploads/2026/08/386d95b4ec77d0171485880baf03f2d5-e1788188217664.jpeg488305In mechanical manufacturing, internal hole precision directly determines equipment service life and assembly reliability. When initial holes from drilling, casting, or forging fail to meet final functional requirements, boring machining becomes the core process for correcting hole diameter, geometry, and positional accuracy. This article systematically covers the technical principles, process classifications, tooling systems, tolerance control, […]