{"id":395,"date":"2016-07-22T13:39:55","date_gmt":"2016-07-22T13:39:55","guid":{"rendered":"http:\/\/www.profactor.at\/en\/?page_id=395"},"modified":"2024-02-01T10:52:21","modified_gmt":"2024-02-01T09:52:21","slug":"crack-detection-by-thermography","status":"publish","type":"page","link":"https:\/\/www.profactor.at\/en\/solutions\/industrial-inspection\/crack-detection-by-thermography\/","title":{"rendered":"Crack detection by thermography"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column width=&#8221;3\/4&#8243;][vc_column_text]<div class=\"overview-image-wrapper\"><div class=\"img\" style=\"background-image:url(https:\/\/www.profactor.at\/wp-content\/uploads\/2016\/07\/Thermobot2_web.jpg);\"\/><\/div><div class=\"overview-caption\"><\/div><\/div>[\/vc_column_text][vc_column_text]Conventional methods (like Magnetic Particle Inspection) for detecting near-surface cracks and other defects beneath the surface of metal parts are pushed to their limits as they are error prone and very resource intensive. In addition to that, automation is often impossible.<\/p>\n<p>Heat flow thermography however offers solutions for automated and non-destructive testing. Although some applications are still the subject of current research, PROFACTOR has managed to establish inspection systems in real production environments.<\/p>\n<p>Basically, the technology uses a heat source (for example a laser, flashlight, electromagnetic induction, or convection) and a thermal camera. By analyzing the surface temperature distribution and the heat flow over time, conclusions on cracks and other defects can be drawn, which are otherwise invisible by the human eye.<\/p>\n<p>Advantage of heat flow thermography in production lines:<\/p>\n<ul>\n<li>100% inspection<\/li>\n<li>none-destructive and contact-free testing<\/li>\n<li>fully automated inspection<\/li>\n<li>documentation of results<\/li>\n<li>faulty products are removed from the production line<\/li>\n<\/ul>\n<p>Aside from crack detection, the quality of joints and weldings, the presence of material inclusions and layer thickness can be tested. Also thermal diffusivity can be measured.<\/p>\n<p>PROFACTOR works together with industrial partners to develop and create custom solutions. This covers everything from consultancy, over feasibility studies up to development and finally implementation.[\/vc_column_text][vc_column_text]<\/p>\n<h2>References<\/h2>\n<h3>Cooperation with INSTITUT Dr. FOERSTER<\/h3>\n<p>In corporation with the German company <a href=\"http:\/\/www.foerstergroup.de\/DEFECTOVISION-Kamerapruefsystem.550.0.html\">FOERSTER<\/a>, a crack detection and inspection system for steel billets and other steel profiles has been developed. It is able to reliably detect cracks on profiles, transported with a velocity of up to 1.5m\/s.<\/p>\n<p>Distortions, which typically occur in industrial environments and which would lead to false signals are successfully suppressed by highly robust signal processing algorithms, in order to deliver stable results.<\/p>\n<p>&nbsp;<\/p>\n<h3>Research Project Thermobot<\/h3>\n<p><span lang=\"DE-AT\"><span style=\"color: #000000; font-family: Calibri;\">In the <a href=\"https:\/\/www.profactor.at\/en\/research\/industrial-automation-systems\/non-destructive-inspection\/projects-archive\/thermobot\/\">Thermobot <\/a>project, a crack detection system for components with complex geometry (for example crankshafts) will be developed.\u00a0 A robot continuously moves the testing sample in order to ensure that every single point on the parts surface gets inspected by the thermographic system. The challenge in this project is to calibrate the path of the robot to the image data of the thermal camera.<\/span><\/span>[\/vc_column_text][vc_column_text css=&#8221;.vc_custom_1689144550799{margin-top: 100px !important;}&#8221;]<\/p>\n<h2>Application Areas<\/h2>\n<p>[\/vc_column_text][vc_column_text el_class=&#8221;overview-subpages&#8221;]<div class=\"row\">\n            <div class=\"col-md-6 subpage-item\">\n                <h4><a href=\"https:\/\/www.profactor.at\/en\/solutions\/industrial-inspection\/crack-detection-by-thermography\/crack-detection\/\">Crack detection<\/a><\/h4>\n                <a href=\"https:\/\/www.profactor.at\/en\/solutions\/industrial-inspection\/crack-detection-by-thermography\/crack-detection\/\"><div class=\"img-wrapper\" style=\"background-image:url(https:\/\/www.profactor.at\/wp-content\/uploads\/2016\/10\/crackdectecion-Copy.jpg);\"><\/div><\/a>\n                <div class=\"description-wrapper\">A crack can be detected by observing the temperature distribution and the heat flow over time. Whether or not the crack can actually be recognized with visual methods is irrelevant. Important however is the detection of a significantly affected heat transfer, caused by a crack in the mater ...<\/div>\n            <\/div>\n        \n            <div class=\"col-md-6 subpage-item\">\n                <h4><a href=\"https:\/\/www.profactor.at\/en\/solutions\/industrial-inspection\/crack-detection-by-thermography\/measurement-of-thermal-diffusivity\/\">measurement of thermal diffusivity<\/a><\/h4>\n                <a href=\"https:\/\/www.profactor.at\/en\/solutions\/industrial-inspection\/crack-detection-by-thermography\/measurement-of-thermal-diffusivity\/\"><div class=\"img-wrapper\" style=\"background-image:url(https:\/\/www.profactor.at\/wp-content\/uploads\/2016\/10\/Temperaturleitfaehigkeitsmessung_EN.jpg);\"><\/div><\/a>\n                <div class=\"description-wrapper\">Measurement of thermal diffusivity can be done with the so called Laser Flash Method. Samples with known geometry are measured at different temperatures. PROFACTOR measures diffusivity by use of thermal cameras at room temperature only, but in a spatially resolved manner. As a result, we g ...<\/div>\n            <\/div>\n        \n            <div class=\"col-md-6 subpage-item\">\n                <h4><a href=\"https:\/\/www.profactor.at\/en\/solutions\/industrial-inspection\/crack-detection-by-thermography\/measurement-of-layer-thickness\/\">Measurement of layer thickness<\/a><\/h4>\n                <a href=\"https:\/\/www.profactor.at\/en\/solutions\/industrial-inspection\/crack-detection-by-thermography\/measurement-of-layer-thickness\/\"><div class=\"img-wrapper\" style=\"background-image:url(https:\/\/www.profactor.at\/wp-content\/uploads\/2016\/09\/Dickenmessung.jpg);\"><\/div><\/a>\n                <div class=\"description-wrapper\">Heat flow thermography is able to measure the thickness of layers and to test joint quality between layers automatically. Thermographic thickness measurement enables to measure locally resolved, and from one side only. Thin locations can be automatically found in drawn metal parts. Layer t ...<\/div>\n            <\/div>\n        \n            <div class=\"col-md-6 subpage-item\">\n                <h4><a href=\"https:\/\/www.profactor.at\/en\/solutions\/industrial-inspection\/crack-detection-by-thermography\/testing-of-joints-and-weldings\/\">Testing of joints and weldings<\/a><\/h4>\n                <a href=\"https:\/\/www.profactor.at\/en\/solutions\/industrial-inspection\/crack-detection-by-thermography\/testing-of-joints-and-weldings\/\"><div class=\"img-wrapper\" style=\"background-image:url(https:\/\/www.profactor.at\/wp-content\/uploads\/2016\/09\/welding-181656_1920_web.jpg);\"><\/div><\/a>\n                <div class=\"description-wrapper\">Heat flow thermography is able to test the quality of joints and welding automatically. Welding spots can be checked as well as long welding seams. If a welding provides poor quality, heat flow through the welding is reduced or disrupted and yields a temperature difference at the surface.  ...<\/div>\n            <\/div>\n        <\/div>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;page-sidebar page-reference-sidebar&#8221;][vc_column_text el_class=&#8221;reference-person&#8221;]<\/p>\n<div class=\"img-wrapper\">\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-8431 size-full\" src=\"https:\/\/www.profactor.at\/wp-content\/uploads\/2016\/07\/cbreit_web2.jpg\" alt=\"\" width=\"300\" height=\"261\" \/><\/p>\n<\/div>\n<div class=\"reference\">\n<h4>Your contact<\/h4>\n<p><strong>Dr. Christoph Breitschopf<\/strong><br \/>\nCEO<\/p>\n<p>+43 72 52 885 0<br \/>\n&#x63;&#x68;&#x72;&#x69;&#x73;&#x74;&#x6f;&#x70;&#x68;&#x2e;&#x62;&#x72;&#x65;&#x69;&#x74;&#x73;&#x63;&#x68;&#x6f;&#x70;&#x66;&#x40;<span class=\"oe_displaynone\">null<\/span>&#x70;&#x72;&#x6f;&#x66;&#x61;&#x63;&#x74;&#x6f;&#x72;&#x2e;&#x61;&#x74;<\/p>\n<\/div>\n<p>[\/vc_column_text][vc_column_text el_class=&#8221;cta-area&#8221;]<\/p>\n<h3>We answer&#8230;<\/h3>\n<p><a class=\"btn cta\" href=\"mailto:christoph.breitschopf@profactor\">&#8230; your questions<\/a>[\/vc_column_text][vc_column_text el_class=&#8221;cta-area&#8221;]<strong>Product Factsheets:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.profactor.at\/wp-content\/uploads\/2023\/07\/Profactor_Thermographie_2023_DE.pdf\" target=\"_blank\" rel=\"noopener\">Industrielle Thermographie<\/a><\/li>\n<li><a href=\"https:\/\/www.profactor.at\/wp-content\/uploads\/2023\/07\/Profactor_Thermography_2023_EN.pdf\" target=\"_blank\" rel=\"noopener\">Industrial Thermography<\/a><\/li>\n<\/ul>\n<p>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<div class=\"shariff shariff-align-flex-start shariff-widget-align-flex-start\"><ul class=\"shariff-buttons theme-round orientation-horizontal buttonsize-medium\"><li class=\"shariff-button linkedin shariff-nocustomcolor\" style=\"background-color:#1488bf\"><a href=\"https:\/\/www.linkedin.com\/sharing\/share-offsite\/?url=https%3A%2F%2Fwww.profactor.at%2Fen%2Fsolutions%2Findustrial-inspection%2Fcrack-detection-by-thermography%2F\" title=\"Bei LinkedIn teilen\" aria-label=\"Bei LinkedIn teilen\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#0077b5; color:#fff\" target=\"_blank\"><span class=\"shariff-icon\" style=\"\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 27 32\"><path fill=\"#0077b5\" d=\"M6.2 11.2v17.7h-5.9v-17.7h5.9zM6.6 5.7q0 1.3-0.9 2.2t-2.4 0.9h0q-1.5 0-2.4-0.9t-0.9-2.2 0.9-2.2 2.4-0.9 2.4 0.9 0.9 2.2zM27.4 18.7v10.1h-5.9v-9.5q0-1.9-0.7-2.9t-2.3-1.1q-1.1 0-1.9 0.6t-1.2 1.5q-0.2 0.5-0.2 1.4v9.9h-5.9q0-7.1 0-11.6t0-5.3l0-0.9h5.9v2.6h0q0.4-0.6 0.7-1t1-0.9 1.6-0.8 2-0.3q3 0 4.9 2t1.9 6z\"\/><\/svg><\/span><\/a><\/li><\/ul><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column width=&#8221;3\/4&#8243;][vc_column_text][\/vc_column_text][vc_column_text]Conventional methods (like Magnetic Particle Inspection) for detecting near-surface cracks and other defects beneath the surface of metal parts are pushed to their limits as they are error prone and very resource intensive. In addition to that, automation is often impossible. Heat flow thermography however offers solutions for automated and non-destructive testing. Although some &hellip;<\/p>\n","protected":false},"author":1,"featured_media":3283,"parent":386,"menu_order":30,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-395","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.profactor.at\/en\/wp-json\/wp\/v2\/pages\/395","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.profactor.at\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.profactor.at\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.profactor.at\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.profactor.at\/en\/wp-json\/wp\/v2\/comments?post=395"}],"version-history":[{"count":18,"href":"https:\/\/www.profactor.at\/en\/wp-json\/wp\/v2\/pages\/395\/revisions"}],"predecessor-version":[{"id":17636,"href":"https:\/\/www.profactor.at\/en\/wp-json\/wp\/v2\/pages\/395\/revisions\/17636"}],"up":[{"embeddable":true,"href":"https:\/\/www.profactor.at\/en\/wp-json\/wp\/v2\/pages\/386"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.profactor.at\/en\/wp-json\/wp\/v2\/media\/3283"}],"wp:attachment":[{"href":"https:\/\/www.profactor.at\/en\/wp-json\/wp\/v2\/media?parent=395"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.profactor.at\/en\/wp-json\/wp\/v2\/categories?post=395"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.profactor.at\/en\/wp-json\/wp\/v2\/tags?post=395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}