{"id":6049,"date":"2025-06-06T10:27:08","date_gmt":"2025-06-06T02:27:08","guid":{"rendered":"https:\/\/sdftools.com\/?p=6049"},"modified":"2025-06-06T10:37:32","modified_gmt":"2025-06-06T02:37:32","slug":"custom-6-flute-internal-coolant-reamer","status":"publish","type":"post","link":"https:\/\/sdftools.com\/ru\/custom-6-flute-internal-coolant-reamer\/","title":{"rendered":"Success Case: Custom 6-Flute Internal Coolant Reamer for Stainless Steel Deep Hole Machining"},"content":{"rendered":"<h4 class=\"wp-block-heading\"><strong>Project Background: Challenges in Stainless Steel Deep Hole Machining<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The customer, a high-end hydraulic equipment manufacturer, required machining <strong>stainless steel deep holes (D12.5H7, 85mm depth)<\/strong> with <strong>Ra0.4 surface roughness<\/strong> and <strong>\u00b10.005mm hole tolerance<\/strong>.<br>The original process using standard reamers faced the following pain points:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Poor chip evacuation<\/strong>: Chip clogging caused tool chipping, with tool life limited to ~600 holes.<\/li>\n\n\n\n<li><strong>High thermal deformation risk<\/strong>: Traditional external cooling failed to dissipate heat, causing \u00b10.015mm hole tolerance fluctuations due to temperature rise.<\/li>\n\n\n\n<li><strong>Low efficiency<\/strong>: Single-piece machining time reached 2.5 minutes, affecting production line rhythm.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"535\" src=\"https:\/\/sdftools.com\/wp-content\/uploads\/2025\/06\/Internal-Coolant-Reamer-1.jpg\" alt=\"\" class=\"wp-image-6053\" srcset=\"https:\/\/sdftools.com\/wp-content\/uploads\/2025\/06\/Internal-Coolant-Reamer-1.jpg 800w, https:\/\/sdftools.com\/wp-content\/uploads\/2025\/06\/Internal-Coolant-Reamer-1-300x201.jpg 300w, https:\/\/sdftools.com\/wp-content\/uploads\/2025\/06\/Internal-Coolant-Reamer-1-768x514.jpg 768w, https:\/\/sdftools.com\/wp-content\/uploads\/2025\/06\/Internal-Coolant-Reamer-1-18x12.jpg 18w, https:\/\/sdftools.com\/wp-content\/uploads\/2025\/06\/Internal-Coolant-Reamer-1-600x401.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Technical Solution: Custom CARBIDE REAMER 6FL-COOLANT Design<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Based on customer requirements, we developed the <strong>CARBIDE REAMER 6FL-COOLANT (D12.5x35x85xD12x6FL)<\/strong>, with the following key design highlights:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>6-Flute High-Efficiency Structure<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>6FL (6 Flutes) design<\/strong> improves cutting stability, with optimized flute spacing at a <strong>58\u00b0 helix angle<\/strong> to reduce vibration.<\/li>\n\n\n\n<li><strong>Parabolic chip flute (D12\u2192D12.5)<\/strong> increases chip space by 40%, preventing clogging in deep-hole machining.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Single-Center Internal Coolant Design<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Center coolant hole (EW1.8xDP1.2)<\/strong>: A single large-diameter coolant channel (1.8mm) at the tool axis delivers coolant directly to the cutting zone (80bar pressure, 1.2mm from the cutting edge).<\/li>\n\n\n\n<li><strong>Negative pressure chip evacuation<\/strong>: The center hole creates a vacuum effect, accelerating chip removal and reducing adhesion on hole walls (critical for stainless steel).<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Precision Manufacturing Process<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Key dimensional tolerances:\n<ul class=\"wp-block-list\">\n<li><strong>D12.5H7 (-0.005mm)<\/strong> (hole diameter)<\/li>\n\n\n\n<li><strong>D12h6 (\u00b10.003mm)<\/strong> (shank diameter)<\/li>\n\n\n\n<li><strong>35mm cutting length (\u00b10.02mm)<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Surface treatment: <strong>TiAlN nano-coating (3.2\u03bcm thickness)<\/strong> enhances wear resistance and thermal stability.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Anti-Vibration Optimization<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Edge honing adjusted to <strong>0.02mm<\/strong>, combined with <strong>asymmetric helical flutes (Helix Angle 35\u00b0\/38\u00b0)<\/strong> to minimize cutting impact.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Application Results: Dual Breakthroughs in Efficiency and Precision<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Customer testing showed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Improved Hole Accuracy<\/strong>: Tolerance stabilized at <strong>\u00b10.003mm<\/strong>, meeting H7 assembly standards.<\/li>\n\n\n\n<li><strong>Achieved Surface Roughness<\/strong>: Ra\u22640.4\u03bcm, eliminating secondary polishing.<\/li>\n\n\n\n<li><strong>Enhanced Efficiency<\/strong>: Single-piece machining time reduced to <strong>1.6 minutes<\/strong>, improving efficiency by <strong>36%<\/strong>.<\/li>\n\n\n\n<li><strong>Cost Reduction<\/strong>: Per-hole cost dropped by <strong>42%<\/strong>, saving over $180,000 annually.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Customer Feedback:<br><em>&#8220;This 6-flute internal coolant reamer completely solved our heat dissipation and chip evacuation challenges in stainless steel deep-hole machining. Tool life extended 3x, and hole stability eliminated frequent equipment adjustments, boosting our line efficiency directly!&#8221;<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Technical Highlights Summary<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Single-Center Coolant Advantage<\/strong>: Direct coolant delivery (1.2mm from cutting edge) extends tool life to <strong>1,800 holes<\/strong>.<\/li>\n\n\n\n<li><strong>Anti-Vibration Design<\/strong>: Asymmetric helical flutes (35\u00b0\/38\u00b0) + 0.02mm honing reduce vibration-induced tolerance deviations.<\/li>\n\n\n\n<li><strong>Rapid Validation<\/strong>: Trial solutions within 72 hours, first-batch delivery within 3 weeks.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe title=\"Custom Reamer\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/zHTmFwoNxKo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>","protected":false},"excerpt":{"rendered":"<p>Project Background: Challenges in Stainless Steel Deep Hole Machining The customer, a high-end hydraulic equipment manufacturer, required machining stainless steel [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":6050,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[155],"tags":[279],"class_list":["post-6049","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-success-cases","tag-internal-coolant-reamer"],"_links":{"self":[{"href":"https:\/\/sdftools.com\/ru\/wp-json\/wp\/v2\/posts\/6049","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sdftools.com\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sdftools.com\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sdftools.com\/ru\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/sdftools.com\/ru\/wp-json\/wp\/v2\/comments?post=6049"}],"version-history":[{"count":2,"href":"https:\/\/sdftools.com\/ru\/wp-json\/wp\/v2\/posts\/6049\/revisions"}],"predecessor-version":[{"id":6055,"href":"https:\/\/sdftools.com\/ru\/wp-json\/wp\/v2\/posts\/6049\/revisions\/6055"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sdftools.com\/ru\/wp-json\/wp\/v2\/media\/6050"}],"wp:attachment":[{"href":"https:\/\/sdftools.com\/ru\/wp-json\/wp\/v2\/media?parent=6049"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sdftools.com\/ru\/wp-json\/wp\/v2\/categories?post=6049"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sdftools.com\/ru\/wp-json\/wp\/v2\/tags?post=6049"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}