{"id":2130,"date":"2026-09-08T18:19:25","date_gmt":"2026-09-08T10:19:25","guid":{"rendered":"https:\/\/www.jccncmachining.com\/?p=2130"},"modified":"2026-09-07T18:25:18","modified_gmt":"2026-09-07T10:25:18","slug":"un-trou-plusieurs-decisions-usinage-de-trous-cnc","status":"publish","type":"post","link":"https:\/\/www.jccncmachining.com\/fr\/blog\/one-hole-several-decisions-cnc-hole-machining\/","title":{"rendered":"Un trou, plusieurs d\u00e9cisions : l'usinage CNC des trous"},"content":{"rendered":"<article class=\"blog-post\">\n<p class=\"lead\" style=\"font-size: 20px; line-height: 2em; text-align: left;\">Un trou n'est rarement qu'un diam\u00e8tre. <strong>Usinage de trous CNC<\/strong> peut n\u00e9cessiter de contr\u00f4ler la position, la profondeur, la rectitude, l'\u00e9tat de surface, l'ajustement, les filetages, les fraisures, l'\u00e9vacuation des copeaux et la relation entre plusieurs trous. Le per\u00e7age cr\u00e9e une ouverture, mais des op\u00e9rations d'al\u00e9sage, d'al\u00e9soir, d'interpolation et de finition peuvent \u00eatre n\u00e9cessaires pour que cette ouverture fonctionne dans un assemblage. Ce guide organise la d\u00e9cision et la relie au contexte plus large <a href=\"https:\/\/www.jccncmachining.com\/fr\/blog\/processus-dusinage-cnc\/\" target=\"_blank\" rel=\"noopener\">Aper\u00e7u du processus d'usinage CNC<\/a>.<\/p>\n<nav class=\"table-of-contents\" aria-label=\"Table des mati\u00e8res\">\n<h2>Table des mati\u00e8res<\/h2>\n<ul>\n<li><a href=\"#function\">Commencer par ce que le trou doit faire<\/a><\/li>\n<li><a href=\"#methods\">Per\u00e7age, al\u00e9sage, al\u00e9soir et interpolation<\/a><\/li>\n<li><a href=\"#sequence\">Construire la s\u00e9quence d'usinage<\/a><\/li>\n<li><a href=\"#geometry\">Trous borgnes et formes \u00e9tag\u00e9es<\/a><\/li>\n<li><a href=\"#control\">Contr\u00f4ler les copeaux, la chaleur et la d\u00e9viation<\/a><\/li>\n<li><a href=\"#inspection\">Tol\u00e9rance et inspection<\/a><\/li>\n<li><a href=\"#design\">Choix de conception pour de meilleurs trous<\/a><\/li>\n<li><a href=\"#rfq\">Informations de la demande de prix<\/a><\/li>\n<li><a href=\"#faq\">FAQ sur l'usinage de trous CNC<\/a><\/li>\n<\/ul>\n<\/nav>\n<section id=\"function\">\n<h2>Commencer par ce que le trou doit faire<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/02-h2-machined-hole-functions-1024x576.webp\" alt=\"machined-hole-functions\" class=\"size-large wp-image-2182 aligncenter\" \/>\n<p style=\"font-size: 20px; line-height: 2em;\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/02-h2-machined-hole-functions-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/02-h2-machined-hole-functions-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/02-h2-machined-hole-functions-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/02-h2-machined-hole-functions-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/02-h2-machined-hole-functions-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/02-h2-machined-hole-functions.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>La voie correcte d\u00e9pend de la fonction. Un trou de passage de boulon n'a pas besoin du m\u00eame processus qu'un trou de positionnement al\u00e9s\u00e9, un al\u00e9sage de roulement, un passage de liquide de refroidissement ou un trou borgne taraud\u00e9.<\/p>\n<ul style=\"font-size: 20px; line-height: 2em;\">\n<li><strong>Jeu de fixation :<\/strong> contr\u00f4ler le diam\u00e8tre, la position, la distance au bord et les bavures.<\/li>\n<li><strong>Ajustement de positionnement :<\/strong> contr\u00f4ler la taille, la position, la perpendicularit\u00e9, la cylindricit\u00e9 et la relation de r\u00e9f\u00e9rence.<\/li>\n<li><strong>Si\u00e8ge de roulement ou de joint :<\/strong> contr\u00f4ler la taille de l'al\u00e9sage, la circularit\u00e9, la coaxialit\u00e9 et l'\u00e9tat de surface.<\/li>\n<li><strong>Passage de fluide :<\/strong> planifier l'\u00e9vacuation des copeaux, les intersections, l'\u00e9bavurage, la propret\u00e9 et les essais.<\/li>\n<\/ul>\n<p style=\"font-size: 20px; line-height: 2em;\">Une fois la fonction claire, le fournisseur peut d\u00e9cider si le per\u00e7age suffit ou si un al\u00e9sage, un al\u00e9sage de finition, une interpolation ou une seconde \u00e9tape d'inspection est n\u00e9cessaire.<\/p>\n<\/section>\n<section id=\"methods\">\n<h2>Per\u00e7age, al\u00e9sage, al\u00e9soir et interpolation<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/03-h2-hole-machining-methods-1024x576.webp\" alt=\"hole-machining-methods\" class=\"size-large wp-image-2177 aligncenter\" \/>\n<table style=\"width: 100%; border-collapse: collapse; font-size: 18px; line-height: 1.6em;\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/03-h2-hole-machining-methods-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/03-h2-hole-machining-methods-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/03-h2-hole-machining-methods-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/03-h2-hole-machining-methods-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/03-h2-hole-machining-methods-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/03-h2-hole-machining-methods.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\n<thead>\n<tr>\n<th style=\"border: 1px solid #d9e2ec; padding: 10px;\">M\u00e9thode<\/th>\n<th style=\"border: 1px solid #d9e2ec; padding: 10px;\">Meilleure utilisation<\/th>\n<th style=\"border: 1px solid #d9e2ec; padding: 10px;\">Question de planification principale<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Per\u00e7age<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Cr\u00e9e l'ouverture initiale<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">La taille, la position, la rectitude et l'\u00e9tat de surface sont-ils ad\u00e9quats ?<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Al\u00e9sage<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Corrige ou agrandit un trou existant<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Le montage peut-il maintenir l'al\u00e9sage align\u00e9 sur la r\u00e9f\u00e9rence ?<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Al\u00e9sage de finition<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Finit un trou pr\u00e9par\u00e9<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Le pr\u00e9-trou est-il droit et correctement dimensionn\u00e9 ?<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Interpolation circulaire<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">G\u00e9n\u00e8re un trou avec une fraise<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">L'acc\u00e8s, la rigidit\u00e9, le mat\u00e9riau et le contr\u00f4le de la trajectoire r\u00e9pondront-ils \u00e0 l'exigence ?<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-size: 20px; line-height: 2em;\">Ces m\u00e9thodes peuvent \u00eatre combin\u00e9es. Un itin\u00e9raire typique peut pointer, percer pr\u00e8s de la profondeur, puis al\u00e9ser ou percer lorsque l'assemblage exige un \u00e9tat final contr\u00f4l\u00e9.<\/p>\n<\/section>\n<section id=\"sequence\">\n<h2>Construire la s\u00e9quence d'usinage<\/h2>\n<ol style=\"font-size: 20px; line-height: 2em;\">\n<li>\u00c9tablir la r\u00e9f\u00e9rence qui contr\u00f4le la position et l'orientation.<\/li>\n<li>Pr\u00e9parer l'entr\u00e9e avec un pointage ou un chanfrein.<\/li>\n<li>S\u00e9lectionner la longueur du foret, le liquide de refroidissement, la strat\u00e9gie de d\u00e9bourrage et la tol\u00e9rance de profondeur.<\/li>\n<li>Affiner avec al\u00e9sage, al\u00e9sage de pr\u00e9cision, interpolation, fraisage conique ou fraisage \u00e0 noyer.<\/li>\n<li>\u00c9liminer les bavures et les copeaux des faces d'\u00e9tanch\u00e9it\u00e9, des filetages et des intersections.<\/li>\n<li>Inspecter le diam\u00e8tre, la profondeur, la position, l'orientation et la relation de r\u00e9f\u00e9rence.<\/li>\n<\/ol>\n<p style=\"font-size: 20px; line-height: 2em;\">La s\u00e9quence est importante pr\u00e8s des parois minces et des passages qui se croisent. Pr\u00e9server la rigidit\u00e9 et l'acc\u00e8s jusqu'\u00e0 ce que le trou critique soit termin\u00e9.<\/p>\n<\/section>\n<section id=\"geometry\">\n<h2>Trous borgnes et formes \u00e9tag\u00e9es<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/04-h2-blind-through-holes-1024x576.webp\" alt=\"blind-through-holes\" class=\"size-large wp-image-2178 aligncenter\" \/>\n<p style=\"font-size: 20px; line-height: 2em;\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/04-h2-blind-through-holes-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/04-h2-blind-through-holes-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/04-h2-blind-through-holes-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/04-h2-blind-through-holes-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/04-h2-blind-through-holes-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/04-h2-blind-through-holes.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>Les trous d\u00e9bouchants offrent une sortie aux copeaux et au liquide de refroidissement ; les trous borgnes n\u00e9cessitent une condition de fond contr\u00f4l\u00e9e et une strat\u00e9gie d'\u00e9vacuation des copeaux. La profondeur utilisable peut \u00eatre inf\u00e9rieure \u00e0 la profondeur de per\u00e7age en raison de la pointe du foret, du chanfrein, du filetage incomplet ou du d\u00e9gagement de fond.<\/p>\n<table style=\"width: 100%; border-collapse: collapse; font-size: 18px; line-height: 1.6em;\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #d9e2ec; padding: 10px;\">Caract\u00e9ristique<\/th>\n<th style=\"border: 1px solid #d9e2ec; padding: 10px;\">Risque<\/th>\n<th style=\"border: 1px solid #d9e2ec; padding: 10px;\">D\u00e9finir sur le dessin<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Trou d\u00e9bouchant<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Exit burr and breakthrough damage<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Exit edge, deburring, position, diameter<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Blind hole<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Chip packing and uncertain usable depth<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Total depth, usable depth, bottom form, cleanliness<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Counterbore or countersink<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Seat depth and coaxiality<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Standard, diameter, angle or depth<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n<section id=\"control\">\n<h2>Contr\u00f4ler les copeaux, la chaleur et la d\u00e9viation<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/05-h2-deep-hole-chip-control-1024x576.webp\" alt=\"deep-hole-chip-control\" class=\"size-large wp-image-2179 aligncenter\" \/>\n<p style=\"font-size: 20px; line-height: 2em;\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/05-h2-deep-hole-chip-control-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/05-h2-deep-hole-chip-control-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/05-h2-deep-hole-chip-control-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/05-h2-deep-hole-chip-control-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/05-h2-deep-hole-chip-control-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/05-h2-deep-hole-chip-control.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>As diameter decreases, depth increases, or material becomes more ductile or abrasive, the tool has less room to carry chips out. Recutting chips can create heat, wear, poor finish, or tool breakage.<\/p>\n<ul style=\"font-size: 20px; line-height: 2em;\">\n<li>Use pecking or chip breaking when depth and material require it.<\/li>\n<li>Deliver coolant or air where it can evacuate chips.<\/li>\n<li>Keep tool reach and runout under control.<\/li>\n<li>Use rigid workholding and preserve support around the hole.<\/li>\n<li>Plan cleaning for blind, intersecting, or fluid-channel features.<\/li>\n<\/ul>\n<p style=\"font-size: 20px; line-height: 2em;\">There is no universal maximum drilling depth: the practical limit depends on diameter, ratio, tool, material, machine, coolant, tolerance, and hole condition.<\/p>\n<\/section>\n<section id=\"inspection\">\n<h2>Tol\u00e9rance et inspection<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/06-h2-hole-tolerance-inspection-1024x576.webp\" alt=\"hole-tolerance-inspection\" class=\"size-large wp-image-2180 aligncenter\" \/>\n<p style=\"font-size: 20px; line-height: 2em;\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/06-h2-hole-tolerance-inspection-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/06-h2-hole-tolerance-inspection-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/06-h2-hole-tolerance-inspection-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/06-h2-hole-tolerance-inspection-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/06-h2-hole-tolerance-inspection-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/06-h2-hole-tolerance-inspection.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>A hole can have the correct diameter and still fail because it is misplaced, tilted, tapered, rough, or too shallow. Inspection should follow the feature control frame and mating function.<\/p>\n<table style=\"width: 100%; border-collapse: collapse; font-size: 18px; line-height: 1.6em;\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #d9e2ec; padding: 10px;\">Caract\u00e9ristique<\/th>\n<th style=\"border: 1px solid #d9e2ec; padding: 10px;\">Why it matters<\/th>\n<th style=\"border: 1px solid #d9e2ec; padding: 10px;\">Possible inspection<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Diameter and fit<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Clearance, interference, sealing, or locating<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Pin gauge, bore gauge, micrometer, or CMM<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Position<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Assembly alignment and bolt-pattern function<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Datum-based CMM or coordinate inspection<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Depth and bottom<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Thread engagement or fastener clearance<\/td>\n<td style=\"border: 1px solid #d9e2ec; padding: 10px;\">Depth gauge, probe, or CMM<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-size: 20px; line-height: 2em;\">Measure the hole from the part datum and its mating feature, not only from an arbitrary edge. The <a href=\"https:\/\/www.jccncmachining.com\/fr\/a-propos\/qualite\/\" target=\"_blank\" rel=\"noopener\">CNC quality information<\/a> can support discussion of reports and measurement requirements.<\/p>\n<\/section>\n<section id=\"design\">\n<h2>Choix de conception pour de meilleurs trous<\/h2>\n<ul style=\"font-size: 20px; line-height: 2em;\">\n<li>Use standard drill, reamer, and thread sizes where function allows.<\/li>\n<li>Provide a stable entry face and enough edge distance.<\/li>\n<li>Define blind-hole usable depth separately from total depth.<\/li>\n<li>Avoid tight holes next to unsupported thin walls unless required.<\/li>\n<li>State whether a hole is clearance, locating, bearing, sealing, fluid, or threaded.<\/li>\n<li>Specify deburring and cleanliness for internal features.<\/li>\n<\/ul>\n<p style=\"font-size: 20px; line-height: 2em;\">These choices make the requirement easier to manufacture, inspect, and communicate without weakening the design intent.<\/p>\n<\/section>\n<section id=\"rfq\">\n<h2>Informations de la demande de prix<\/h2>\n<ol style=\"font-size: 20px; line-height: 2em;\">\n<li>Current 3D model and 2D drawing with callouts, datums, and revision.<\/li>\n<li>Hole type, diameter, depth, fit, position, orientation, thread, and surface requirements.<\/li>\n<li>Material grade, condition, thickness, quantity, and prototype or production status.<\/li>\n<li>Deburring, cleaning, pressure, leak, coating, and assembly requirements.<\/li>\n<li>Inspection report, first article, sampling, traceability, and packaging expectations.<\/li>\n<\/ol>\n<\/section>\n<section id=\"faq\">\n<h2>FAQ sur l'usinage de trous CNC<\/h2>\n<h3>What is the difference between drilling, boring, and reaming?<\/h3>\n<p style=\"font-size: 20px; line-height: 2em;\">Drilling creates the initial hole, boring enlarges or corrects it, and reaming removes a controlled final allowance to improve size and surface condition.<\/p>\n<h3>When does a drilled hole need reaming?<\/h3>\n<p style=\"font-size: 20px; line-height: 2em;\">Consider reaming when the final size and finish must be more controlled than the drilling route can reliably provide.<\/p>\n<h3>How are deep holes kept accurate?<\/h3>\n<p style=\"font-size: 20px; line-height: 2em;\">Accuracy depends on depth ratio, tool rigidity, guidance, coolant, chip evacuation, machine condition, material, and inspection.<\/p>\n<h3>Why can a hole be the right size but still fail?<\/h3>\n<p style=\"font-size: 20px; line-height: 2em;\">It may be misplaced, tilted, tapered, rough, too shallow, or not aligned with the datum or mating feature.<\/p>\n<h3>What should be specified for a blind hole?<\/h3>\n<p style=\"font-size: 20px; line-height: 2em;\">Specify diameter, usable and total depth, bottom condition, thread or fit, position, chamfer, burr limits, cleanliness, and mating clearance.<\/p>\n<\/section>\n<p style=\"font-size: 20px; line-height: 2em;\">Effective CNC hole machining starts with the part\u2019s function and ends with evidence that the hole will assemble, seal, locate, carry a fastener, or carry a fluid as intended. Separating drilling, refining, deburring, cleaning, and inspection decisions prevents a simple diameter callout from hiding a difficult manufacturing requirement.<\/p>\n<\/article>\n<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"BlogPosting\",\n    \"headline\": \"One Hole, Several Decisions: CNC Hole Machining\",\n    \"author\": {\n        \"@type\": \"Organization\",\n        \"name\": \"JUCHENG CNC Machining\"\n    },\n    \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"JUCHENG CNC Machining\"\n    },\n    \"description\": \"A practical CNC hole machining guide covering drilling, boring, reaming, deep holes, tolerances, inspection, and design decisions.\"\n}<\/script><\/p>","protected":false},"excerpt":{"rendered":"<p>A hole is rarely just a diameter. CNC hole machining may need to control location, depth, straightness, finish, fit, threads, countersinks, chip evacuation, and the relationship between several holes. Drilling creates an opening, but boring, reaming, interpolation, and finishing operations may be needed to make that opening function in an assembly. This guide organizes the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2181,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2130","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/posts\/2130","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/comments?post=2130"}],"version-history":[{"count":1,"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/posts\/2130\/revisions"}],"predecessor-version":[{"id":2191,"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/posts\/2130\/revisions\/2191"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/media\/2181"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/media?parent=2130"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/categories?post=2130"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/fr\/wp-json\/wp\/v2\/tags?post=2130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}