{"id":157,"date":"2023-01-21T14:06:34","date_gmt":"2023-01-21T13:06:34","guid":{"rendered":"http:\/\/haertha.dev.neuekommunikation.de\/wordpress\/?post_type=verfahren&#038;p=157"},"modified":"2024-11-14T13:25:54","modified_gmt":"2024-11-14T12:25:54","slug":"edge-layer-hardening","status":"publish","type":"verfahren","link":"https:\/\/haertha.de\/en\/process\/edge-layer-hardening\/","title":{"rendered":"Edge layer hardening"},"content":{"rendered":"<div id=\"verfahren-header-block_0a398dfc36e1afcf7f6d6cd5fbf3b70b\" class=\"verfahren-header-video\" >   \r\n\r\n    <div class=\"embed-container popup-vimeo\">\r\n        <iframe loading=\"lazy\" title=\"LOOP_Induktivha\u0308rten\" src=\"https:\/\/player.vimeo.com\/video\/813128434?h=7aedd47bb6&amp;dnt=1&amp;app_id=122963&#038;controls=0&#038;hd=1&#038;loop=1&#038;autohide=0&#038;dnt=1&#038;autoplay=1&#038;muted=1\" width=\"640\" height=\"300\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\"><\/iframe>    <\/div>  \r\n    \r\n    \r\n<\/div>\r\n\n\n\r\n<div id=\"verfahren-text-block_1a4cad2f3245c1e2f249fb96ac5f3935\" class=\"verfahren-text toc\" data-toctitle=\"Allgemeines zum Randschichth\u00e4rten von Stahl\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">General information on the edge layer hardening of steel<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><p class=\" translation-block\">Edge layer hardening designates the <strong>partial hardening of metal components in their edge layer<\/strong>. The process is synonymous with surface hardening. The surface is heated to its austenitising temperature and then quenched. The core remains largely unaffected by this procedure.<br>\n<br>\nThe process creates <strong>various layers with different properties<\/strong> in the workpiece \u2013 the tough primary material in the core, and the hardened surface with significantly greater wear resistance. This combination of properties is ideal for components subjected to great mechanical strain, such as gear wheels and presses.<br>\n<br>\nEdge layer hardening involves <strong>hardening by austenitising<\/strong> followed by a subsequent formation of martensite, i.e. a change of the microstructure. In contrast, nitriding does not result in a change of the microstructure, but in a chemical change in the edge layer.<br>\n<br><\/p>\n<p>&nbsp;<\/p>\n<h3>Technical details<\/h3>\n<p class=\" translation-block\">Only <strong>quenched and tempered steel with a carbon content of at least 0.45%<\/strong> is well suited for edge layer hardening, as this process involves no external supply of carbon. As a general rule, the hardenability of steels depends on their carbon content. This content can be increased by carburising.<br><\/p>\n<p class=\" translation-block\">The appropriate temperature for edge layer hardening depends on the material. It is 50 to 100 \u00b0C higher than the hardening temperature of the respective steel grade. The material is heated by <strong>induction, laser beam, electron beam, or flame<\/strong>.<br>\n<br>\nTo reduce stresses and brittleness, <strong>hardening can be followed up with annealing or tempering<\/strong>. These steps make it possible to regulate individual parameters for the workpiece.<br><\/p>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\"><\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\n\n\r\n<div id=\"verfahren-text-block_9f4f4339c46e23786eabf3fbf4ba3ff7\" class=\"verfahren-text toc\" data-toctitle=\"Vorteile auf einen Blick\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">The advantages at a glance<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><p>Steels subjected to edge layer hardening provide a number of attractive benefits:<br \/>\n&nbsp;<\/p>\n<ul>\n<li class=\" translation-block\">Their general <b>durability and fatigue strength increase<\/b>, because the component becomes more resistant to wear.<\/li>\n<li class=\" translation-block\">Residual compressive stresses and tensions <b>increase the vibration resistance<\/b> of the component surface.<\/li>\n<li class=\" translation-block\">The rigidity and <b>resilience of the use surfaces are improved by the increased surface hardness<\/b> (which is important, for instance, for the rolling surfaces of gear wheels).<\/li>\n<li class=\" translation-block\">In addition, subsequent grinding can provide even <b>greater precision and higher surface quality<\/b>.<\/li>\n<\/ul>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\"><\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>\r\n\r\n\r\n\r\n\r\n\n\n\r\n<div id=\"verfahren-text-block_023b8d8b52dcce0af313e82ed48046d2\" class=\"verfahren-text toc\" data-toctitle=\"Verfahren zum Oberfl\u00e4chenh\u00e4rten von St\u00e4hlen\" style=\"\">\r\n    <div class=\"row\">\r\n        <div class=\"col-12\">\r\n            <div class=\"content-wrapper\" >\r\n\r\n                            <div class=\"box\">\r\n                                            <div class=\"nummber\"> \r\n                            \r\n                        <\/div>\r\n                        \r\n                                            <h2 class=\"headline\">Process for hardening the surface of steels<\/h2>\r\n                                \r\n                <\/div>\r\n            \r\n                <div class=\"content-box texteditor\" style=\"\">                    \r\n                    <p><h3 class=\" translation-block\">Edge layer hardening process without changing the chemical composition<\/h3>\n<p>&nbsp;<\/p>\n<h4>Induction hardening\/inductive hardening<\/h4>\n<p class=\" translation-block\">The basic principle behind induction heating is the heating of the workpiece surface using <b>alternating magnetic fields<\/b>. The hardening takes place during the subsequent quenching process. Inductive hardening is an excellent option for the <b>mass production of components<\/b>, because it is ideally suited for automation and high throughput.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1641\" src=\"https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/induktivhaerten-verfahrensablauf_ENG.png\" alt=\"\" width=\"800\" height=\"800\" srcset=\"https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/induktivhaerten-verfahrensablauf_ENG.png 2000w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/induktivhaerten-verfahrensablauf_ENG-300x300.png 300w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/induktivhaerten-verfahrensablauf_ENG-1024x1024.png 1024w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/induktivhaerten-verfahrensablauf_ENG-150x150.png 150w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/induktivhaerten-verfahrensablauf_ENG-768x768.png 768w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/induktivhaerten-verfahrensablauf_ENG-1536x1536.png 1536w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/induktivhaerten-verfahrensablauf_ENG-12x12.png 12w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/induktivhaerten-verfahrensablauf_ENG-1106x1106.png 1106w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><i><span style=\"font-weight: 400;\">Process: Inductive hardening<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<p class=\" translation-block\">Edge layer hardening is a standard process at H\u00e4rtha. What sets our process apart is the <a href=\"https:\/\/haertha.de\/en\/verfahren\/induktivhaerten\/\" target=\"_self\">inductive hardening<\/a>. We will be happy to advise you on hardening processes that fulfil your specific requirements.<\/p>\n<h4><\/h4>\n<p>&nbsp;<\/p>\n<h4>Laser and electron beam hardening<\/h4>\n<p>Electron beam and laser beam hardening are particularly well suited <b>for small workpieces<\/b>that require only shallow hardening depths.<\/p>\n<p>Both laser beams and electron beams can be used to heat the steel surface until it reaches its austenitising temperature - by means of point-by-point or plane heating. Heating with laser beams or electron beams is <b>very fast<\/b>. The rapid speed facilitates quenching, which takes place almost by itself through the slow heat conduction.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-1643\" src=\"https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/laserstrahlhaerten-verfahrensablauf_ENG.png\" alt=\"\" width=\"1024\" height=\"1024\" srcset=\"https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/laserstrahlhaerten-verfahrensablauf_ENG.png 2000w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/laserstrahlhaerten-verfahrensablauf_ENG-300x300.png 300w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/laserstrahlhaerten-verfahrensablauf_ENG-1024x1024.png 1024w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/laserstrahlhaerten-verfahrensablauf_ENG-150x150.png 150w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/laserstrahlhaerten-verfahrensablauf_ENG-768x768.png 768w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/laserstrahlhaerten-verfahrensablauf_ENG-1536x1536.png 1536w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/laserstrahlhaerten-verfahrensablauf_ENG-12x12.png 12w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/laserstrahlhaerten-verfahrensablauf_ENG-1106x1106.png 1106w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><i><span style=\"font-weight: 400;\">Caption: Process: Laser hardening<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-1644\" src=\"https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/elektrostrahlhaerten-verfahrensablauf_ENG.png\" alt=\"\" width=\"1024\" height=\"1024\" srcset=\"https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/elektrostrahlhaerten-verfahrensablauf_ENG.png 2000w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/elektrostrahlhaerten-verfahrensablauf_ENG-300x300.png 300w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/elektrostrahlhaerten-verfahrensablauf_ENG-1024x1024.png 1024w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/elektrostrahlhaerten-verfahrensablauf_ENG-150x150.png 150w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/elektrostrahlhaerten-verfahrensablauf_ENG-768x768.png 768w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/elektrostrahlhaerten-verfahrensablauf_ENG-1536x1536.png 1536w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/elektrostrahlhaerten-verfahrensablauf_ENG-12x12.png 12w, https:\/\/haertha.de\/wp-content\/uploads\/2023\/03\/elektrostrahlhaerten-verfahrensablauf_ENG-1106x1106.png 1106w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p><i><span style=\"font-weight: 400;\">Process: Electron beam hardening<\/span><\/i><\/p>\n<p>&nbsp;<\/p>\n<h3>Thermochemical diffusion treatment with change of chemical composition<\/h3>\n<ul>\n<li><a href=\"https:\/\/haertha.de\/verfahren\/einsatzhaerten\/\">Case hardening<\/a><\/li>\n<\/ul>\n<p>Hardening of the edge layer by carburising using carbon and subsequent hardening and tempering<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><a href=\"https:\/\/haertha.de\/verfahren\/nitrieren\/\">Nitriding<\/a><\/li>\n<\/ul>\n<p>Hardening of the edge layer with nitrogen feed<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><a href=\"https:\/\/haertha.de\/verfahren\/carbonitrieren\/\">Carbonitriding<\/a><\/li>\n<\/ul>\n<p>Hardening of the edge layer with carbon and nitrogen supply, and subsequent hardening and tempering<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><a href=\"https:\/\/haertha.de\/verfahren\/niederdruckaufkohlen\/\">Low pressure carburising (LPC)<\/a><\/li>\n<\/ul>\n<p>Hardening of the edge layer in a vacuum furnace with hydrocarbon<\/p>\n<\/p>\r\n                    <div class=\"acf-innerblocks-container\"><\/div>\r\n                    \r\n                    <style>\r\n                        .sonder-zeichen{\r\n                            display: flex;\r\n                            flex-direction: row;\r\n                            gap: 15px;\r\n                        }\r\n                        .zeichen{\r\n                            color: #C9C9C9;\r\n                            position: relative;\r\n                            line-height: 66px;\r\n                            font-size: clamp(2.75rem, 1.9766rem + 2.1484vw, 4.125rem);\r\n                        }\r\n                    <\/style>\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Randschichth\u00e4rten ist ein Verfahren in der Metallverarbeitung zur H\u00e4rtung der Oberfl\u00e4che eines Werkst\u00fccks. Daher auch die synonyme Bezeichnung des Oberfl\u00e4chenh\u00e4rtens.<br \/>\nGrundvoraussetzung zum Randschichth\u00e4rten ist eine Austenitisierung der Randschicht, also die Gef\u00fcgeumwandlung durch Erhitzung. Diese findet beim Induktionsh\u00e4rten, beim<br \/>\nFlammh\u00e4rten, beim Laserstrahlh\u00e4rten und beim Elektronenstrahlh\u00e4rten statt.<\/p>\n<p>Inhaltsverzeichnis einbauen<\/p>\n<p>Sie haben Interesse am Randschichth\u00e4rten? Egal ob Serien- oder Einzelteilfertigung \u2013 mit unseren gro\u00dfz\u00fcgigen und modernen Anlagen garantieren wir f\u00fcr eine z\u00fcgige und hochqualitative Umsetzung Ihres Auftrags.<\/p>","protected":false},"author":9,"featured_media":5724,"menu_order":301,"template":"","verfahrenstechnik":[8],"class_list":["post-157","verfahren","type-verfahren","status-publish","has-post-thumbnail","hentry","verfahrenstechnik-randschichthaerten"],"acf":{"text_cta":"Randschichth\u00e4rten ist ein Verfahren in der Metallverarbeitung zur <b>H\u00e4rtung der Oberfl\u00e4che eines Werkst\u00fccks.<\/b> Daher auch die synonyme Bezeichnung des Oberfl\u00e4chenh\u00e4rtens. Grundvoraussetzung zum Randschichth\u00e4rten ist eine Austenitisierung der Randschicht, also die Gef\u00fcgeumwandlung durch Erhitzung. Diese findet beim Induktionsh\u00e4rten, beim Flammh\u00e4rten, beim Laserstrahlh\u00e4rten und beim Elektronenstrahlh\u00e4rten statt.\r\n \r\n\r\nSie haben Interesse am Randschichth\u00e4rten? Egal ob Serien- oder Einzelteilfertigung \u2013 mit unseren <b>gro\u00dfz\u00fcgigen und modernen Anlagen<\/b> garantieren wir f\u00fcr eine z\u00fcgige und hochqualitative Umsetzung Ihres Auftrags. \r\n","contact_location":[12,254,49,260,248,250,11495],"materials":"on","tablepress":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Randschichth\u00e4rten | H\u00c4RTHA GROUP<\/title>\n<meta name=\"description\" content=\"Was versteht man unter Randschichth\u00e4rten? \u2713 Vorteile \u2713 Verfahren DIN 10052 + thermochemische Diffusionsbehandlungen.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/haertha.de\/en\/process\/edge-layer-hardening\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Randschichth\u00e4rten | H\u00c4RTHA GROUP\" \/>\n<meta property=\"og:description\" content=\"Was versteht man unter Randschichth\u00e4rten? 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