{"id":4414,"date":"2017-08-01T21:38:31","date_gmt":"2017-08-01T21:38:31","guid":{"rendered":"http:\/\/www.novacam.com\/?page_id=4414"},"modified":"2021-04-09T11:49:00","modified_gmt":"2021-04-09T15:49:00","slug":"cooling-holes-inspection","status":"publish","type":"page","link":"https:\/\/www.novacam.com\/fr\/applications\/inspection-des-trous-de-refroidissement\/","title":{"rendered":"Trous de refroidissement"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ba9bi-f242dcaadbd7a13612e913ffc7cf96c8\">\n.flex_column.av-ba9bi-f242dcaadbd7a13612e913ffc7cf96c8{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-ba9bi-f242dcaadbd7a13612e913ffc7cf96c8 av_one_full  avia-builder-el-0  el_before_av_one_half  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-in6wim-1b5ac0ffb5a092418c1f4bb4451d042b '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h1>Cooling holes inspection<\/h1>\n<p><strong>Measuring System: <\/strong>NOVACAM<sup><small>TM<\/small><\/sup> <a href=\"https:\/\/www.novacam.com\/products\/edgeinspect-for-3d-edge-radius-metrology\/\">EDGEINSPECT<sup><small>TM<\/small><\/sup><\/a> system<br \/>\n<strong>Keywords:<\/strong>\u00a0aerospace industry, energy industry, turbine blades, gas combustion engines<\/p>\n<h2>Function and characterization of cooling holes<\/h2>\n<p>To help avoid heat-related failure of combustion engines, multiple small cooling holes are drilled into hollow turbine blades to discharge cooling air from the blade interior onto its surface. Cooling hole geometries have grown more complex over time to improve their functional effectiveness.<\/p>\n<p>NOVACAM<sup><small>TM<\/small><\/sup> EDGEINSPECT<sup><small>TM<\/small><\/sup> system provides advanced capabilities in cooling holes inspection. This non-contact inspection system acquires high-precision 3D topography of surfaces at high speed (2,100 to 100,000 3D points per second). In a single pass over a turbine blade, the system scanner acquires a very dense 3D point cloud of the surface, enabling the characterization of:<\/p>\n<ul>\n<li>The shape of the diffuser opening<\/li>\n<li>A portion of the cooling hole inner diameter (ID) (which can be further extended by varying the scanning angle)<\/li>\n<li>The geometrical center of the through hole<\/li>\n<li>The inclination angle of the through hole<\/li>\n<li>The profile, waviness, and roughness of the acquired bottom surface of the cooling hole<\/li>\n<li>Dimensional variability of each hole with respect to a CAD model.<\/li>\n<\/ul>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-6at6b2-2a940214f214bb47db159dcfa2e88e64\">\n.flex_column.av-6at6b2-2a940214f214bb47db159dcfa2e88e64{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-6at6b2-2a940214f214bb47db159dcfa2e88e64 av_one_half  avia-builder-el-2  el_after_av_one_full  el_before_av_one_half  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-jj498fub-5ef2a77a793175290c59a5e31010164c '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"attachment_5610\" style=\"width: 766px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-hole-diffuser-machining-tracks-orig-labeled.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5610\" class=\"wp-image-5610 size-full\" src=\"https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-hole-diffuser-machining-tracks-orig-labeled.jpg\" alt=\"\" width=\"756\" height=\"447\" srcset=\"https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-hole-diffuser-machining-tracks-orig-labeled.jpg 756w, https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-hole-diffuser-machining-tracks-orig-labeled-140x83.jpg 140w, https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-hole-diffuser-machining-tracks-orig-labeled-300x177.jpg 300w, https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-hole-diffuser-machining-tracks-orig-labeled-705x417.jpg 705w, https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-hole-diffuser-machining-tracks-orig-labeled-450x266.jpg 450w\" sizes=\"auto, (max-width: 756px) 100vw, 756px\" \/><\/a><p id=\"caption-attachment-5610\" class=\"wp-caption-text\">The opening of a cooling hole reveals the dual channel shape created by drilling.<\/p><\/div>\n<\/div><\/section><\/div><\/p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-40yace-37d6f62db2ad09c7d20a5a7b5955fa6e\">\n.flex_column.av-40yace-37d6f62db2ad09c7d20a5a7b5955fa6e{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-40yace-37d6f62db2ad09c7d20a5a7b5955fa6e av_one_half  avia-builder-el-4  el_after_av_one_half  el_before_av_one_full  flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-jj49carz-98d4356088170659f94017c8e6868884 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"attachment_5611\" style=\"width: 621px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-holes-with-fitted-cylinders-orig-labeled-1.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5611\" class=\"wp-image-5611 size-full\" src=\"https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-holes-with-fitted-cylinders-orig-labeled-1.jpg\" alt=\"\" width=\"611\" height=\"505\" srcset=\"https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-holes-with-fitted-cylinders-orig-labeled-1.jpg 611w, https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-holes-with-fitted-cylinders-orig-labeled-1-140x116.jpg 140w, https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-holes-with-fitted-cylinders-orig-labeled-1-300x248.jpg 300w, https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-holes-with-fitted-cylinders-orig-labeled-1-450x372.jpg 450w\" sizes=\"auto, (max-width: 611px) 100vw, 611px\" \/><\/a><p id=\"caption-attachment-5611\" class=\"wp-caption-text\">Fitting a cylinder to the bottom surface of each cooling hole helps determine the cooling hole center-line and the incident (inclination) angle of the through-hole.<\/p><\/div>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2x3be6-412d866a7b23e194a037a2a6a0ef34cd\">\n.flex_column.av-2x3be6-412d866a7b23e194a037a2a6a0ef34cd{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2x3be6-412d866a7b23e194a037a2a6a0ef34cd av_one_full  avia-builder-el-6  el_after_av_one_half  el_before_av_one_full  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-5f7232-8073fcc0d9d5c164f58fa8f3f71b6c92 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>Versatile installation with a fiber-based LCI system<\/h2>\n<p>The EDGEINSPECT system is based on <a href=\"https:\/\/www.novacam.com\/technology\/how-lci-works\/\">low-coherence interferometry technology<\/a>. It is also a modular and fiber-based optical system; its galvo scanner probe is connected to the system signal-processing interferometer with an optical fiber that can be several meters long. As such, the galvo scanner is easily integrated with a robot arm or as a 3D vision component in automated or semi-automated systems on the plant floor.<\/p>\n<p>See\u00a0a <a href=\"https:\/\/www.novacam.com\/technology\/advantages\/\">more complete list of advantages of\u00a0 NOVACAM fiber-based LCI systems<\/a>.<\/p>\n<h2>Inspecting cooling holes in tight spaces<\/h2>\n<p>Unlike microscope-like instruments, the\u00a0 EDGEINSPECT system can also be configured to measure surfaces in <a href=\"https:\/\/www.novacam.com\/applications\/hard-to-reach-spaces\/\">hard-to-reach spaces<\/a>. While the standard galvo scanner that comes with the EDGEINSPECT system is the fastest scanning option, a small-diameter rotational scanner can also be added or substituted to acquire cooling holes in tight space such as, for example, on the inner surfaces of stator blades.<\/p>\n<ul style=\"list-style: none;\">\n<li>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-86d7a-fd5bf807169752905ae0e6f9489afa38\">\n.av_font_icon.av-86d7a-fd5bf807169752905ae0e6f9489afa38 .av-icon-char{\nfont-size:20px;\nline-height:20px;\n}\n<\/style>\n<span  class='av_font_icon av-86d7a-fd5bf807169752905ae0e6f9489afa38 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-iconfont avia-font-entypo-fontello av-no-color avia-icon-animate'><span class='av-icon-char' data-av_icon='\ue80d' data-av_iconfont='entypo-fontello' aria-hidden=\"true\" ><\/span><\/span>\u00a0 Watch related video:\u00a0<a href=\"https:\/\/www.novacam.com\/turbine-blade-inspection-video\/\">Turbine blade inspection (00:02:30)<\/a><\/li>\n<\/ul>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-fwyxf-d0f77978b5dff1d1367f98950eefe160\">\n.flex_column.av-fwyxf-d0f77978b5dff1d1367f98950eefe160{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-fwyxf-d0f77978b5dff1d1367f98950eefe160 av_one_full  avia-builder-el-9  el_after_av_one_full  el_before_av_one_fourth  first flex_column_div av-zero-column-padding  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jhc3ylfa-e69f3d2ea4f1ca45379132611fcff224\">\n#top .av-special-heading.av-jhc3ylfa-e69f3d2ea4f1ca45379132611fcff224{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-jhc3ylfa-e69f3d2ea4f1ca45379132611fcff224 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-jhc3ylfa-e69f3d2ea4f1ca45379132611fcff224 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-jhc3ylfa-e69f3d2ea4f1ca45379132611fcff224 av-special-heading-h3  avia-builder-el-10  avia-builder-el-no-sibling '><h3 class='av-special-heading-tag '  itemprop=\"headline\"  >Related links<\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-tix1n-03fbeadfae75efb106c9dae7b5f0320c\">\n.flex_column.av-tix1n-03fbeadfae75efb106c9dae7b5f0320c{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-tix1n-03fbeadfae75efb106c9dae7b5f0320c av_one_fourth  avia-builder-el-11  el_after_av_one_full  el_before_av_one_fifth  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-24dm3-ba103b6d78fffee9b20fa453d4e54625 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><a href=\"https:\/\/www.novacam.com\/pdf\/ApplicationNote_Cooling_Holes_Inspection.pdf\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-3m1tdz-b270831ef608938363c1f22dc62478a6\">\n.av_font_icon.av-3m1tdz-b270831ef608938363c1f22dc62478a6 .av-icon-char{\nfont-size:30px;\nline-height:30px;\n}\n<\/style>\n<span  class='av_font_icon av-3m1tdz-b270831ef608938363c1f22dc62478a6 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-iconfont avia-font-entypo-fontello av-no-color avia-icon-animate'><span class='av-icon-char' data-av_icon='\ue82d' data-av_iconfont='entypo-fontello' aria-hidden=\"true\" ><\/span><\/span> Download application note &#8220;Cooling Holes Inspection&#8221;<\/a>\u00a0[4 pages, PDF, 1 MB] for more details on this application<\/p>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-18g1gr-3fb8df32a9c94486c488f834c640d0cd\">\n.flex_column.av-18g1gr-3fb8df32a9c94486c488f834c640d0cd{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-18g1gr-3fb8df32a9c94486c488f834c640d0cd av_one_fifth  avia-builder-el-14  el_after_av_one_fourth  el_before_av_one_fourth  flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-3ncs3-9755d2f2237c148e459fbf79ca214fb4 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><a href=\"https:\/\/www.novacam.com\/products\/edgeinspect-for-3d-edge-radius-metrology\/\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-waioz-15129e036111ecc60b49fc74d64c8916\">\n.av_font_icon.av-waioz-15129e036111ecc60b49fc74d64c8916 .av-icon-char{\nfont-size:30px;\nline-height:30px;\n}\n<\/style>\n<span  class='av_font_icon av-waioz-15129e036111ecc60b49fc74d64c8916 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-iconfont avia-font-entypo-fontello av-no-color avia-icon-animate'><span class='av-icon-char' data-av_icon='\ue826' data-av_iconfont='entypo-fontello' aria-hidden=\"true\" ><\/span><\/span> See the EDGEINSPECT system product page<\/a><\/p>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-tix1n-530b10d03969bfeb80ab87309988dedf\">\n.flex_column.av-tix1n-530b10d03969bfeb80ab87309988dedf{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-tix1n-530b10d03969bfeb80ab87309988dedf av_one_fourth  avia-builder-el-17  el_after_av_one_fifth  el_before_av_one_fourth  flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-24dm3-ba103b6d78fffee9b20fa453d4e54625 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-cn0sb-06317cc36f0cbcb81254298732237865\">\n.av_font_icon.av-cn0sb-06317cc36f0cbcb81254298732237865 .av-icon-char{\nfont-size:20px;\nline-height:20px;\n}\n<\/style>\n<span  class='av_font_icon av-cn0sb-06317cc36f0cbcb81254298732237865 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-iconfont avia-font-entypo-fontello av-no-color avia-icon-animate'><span class='av-icon-char' data-av_icon='\ue81e' data-av_iconfont='entypo-fontello' aria-hidden=\"true\" ><\/span><\/span>\u00a0 Check out related applications:<\/p>\n<ul>\n<li><a href=\"https:\/\/www.novacam.com\/applications\/blisk-inspection\/\">Blisk inspection<\/a><\/li>\n<li><a href=\"https:\/\/www.novacam.com\/applications\/edge-measurement\/\">Edge inspection<\/a><\/li>\n<li><a href=\"https:\/\/www.novacam.com\/applications\/hard-to-reach-spaces\/\">Measurement in hard-to-reach places<\/a><\/li>\n<li><a href=\"https:\/\/www.novacam.com\/applications\/\">&#8230; and more\u00a0<\/a><\/li>\n<\/ul>\n<\/div><\/section><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-18g1gr-3fb8df32a9c94486c488f834c640d0cd\">\n.flex_column.av-18g1gr-3fb8df32a9c94486c488f834c640d0cd{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-18g1gr-3fb8df32a9c94486c488f834c640d0cd av_one_fourth  avia-builder-el-20  el_after_av_one_fourth  avia-builder-el-last  flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-3ncs3-9755d2f2237c148e459fbf79ca214fb4 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><a href=\"https:\/\/www.novacam.com\/contact-us\/contact-us\/\">\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1v8pg3-48925116ff62d88059331475f774c943\">\n.av_font_icon.av-1v8pg3-48925116ff62d88059331475f774c943 .av-icon-char{\nfont-size:30px;\nline-height:30px;\n}\n<\/style>\n<span  class='av_font_icon av-1v8pg3-48925116ff62d88059331475f774c943 avia_animate_when_visible av-icon-style- avia-icon-pos-left avia-iconfont avia-font-entypo-fontello av-no-color avia-icon-animate'><span class='av-icon-char' data-av_icon='\ue80b' data-av_iconfont='entypo-fontello' aria-hidden=\"true\" ><\/span><\/span><\/a>\u00a0<a href=\"https:\/\/www.novacam.com\/contact-us\/contact-us\/\">Contact us<\/a>\u00a0or <a href=\"https:\/\/www.novacam.com\/contact-us\/request-sample-analysis\/\">request free sample analysis<\/a> to see if EDGEINSPECT system is suitable for your cooling holes inspection process<\/p>\n<\/div><\/section><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":5488,"menu_order":12,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"on","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":"","advanced-sidebar-menu\/link-title":"","advanced-sidebar-menu\/exclude-page":false},"class_list":["post-4414","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cooling Holes Inspection &amp; 3D metrology - Novacam<\/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:\/\/www.novacam.com\/fr\/applications\/inspection-des-trous-de-refroidissement\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cooling Holes Inspection &amp; 3D metrology - Novacam\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.novacam.com\/fr\/applications\/inspection-des-trous-de-refroidissement\/\" \/>\n<meta property=\"og:site_name\" content=\"Novacam\" \/>\n<meta property=\"article:modified_time\" content=\"2021-04-09T15:49:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.novacam.com\/wp-content\/uploads\/2018\/01\/cooling-hole-diffuser-machining-tracks-orig-labeled.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" 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