{"id":116258,"date":"2022-05-11T11:46:40","date_gmt":"2022-05-11T10:46:40","guid":{"rendered":"https:\/\/material-properties.org\/quelle-est-la-durete-de-lacier-a-outils-definition\/"},"modified":"2022-05-18T07:45:36","modified_gmt":"2022-05-18T06:45:36","slug":"quelle-est-la-durete-de-lacier-a-outils-definition","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/quelle-est-la-durete-de-lacier-a-outils-definition\/","title":{"rendered":"Quelle est la duret\u00e9 de l&rsquo;acier \u00e0 outils &#8211; D\u00e9finition"},"content":{"rendered":"<p><span><div class=\"su-quote su-quote-style-default\"><div class=\"su-quote-inner su-u-clearfix su-u-trim\">Duret\u00e9 Rockwell de l&rsquo;acier \u00e0 outils &#8211; L&rsquo;acier A2 d\u00e9pend du processus de traitement thermique, mais il est d&rsquo;environ 60 HRC.\u00a0Duret\u00e9 de l&rsquo;acier \u00e0 outils<\/div><\/div><\/span><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<figure id=\"attachment_28872\" aria-describedby=\"caption-attachment-28872\" style=\"width: 290px\" class=\"wp-caption alignright\"><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/tool-steel-image.png\"><img decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-28872\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/tool-steel-image-300x139.png\" alt=\"Acier \u00e0 outils\" width=\"300\" height=\"139\" \/><\/a><figcaption id=\"caption-attachment-28872\" class=\"wp-caption-text\"><span>L&rsquo;acier \u00e0 outils fait r\u00e9f\u00e9rence \u00e0 une vari\u00e9t\u00e9 d&rsquo;aciers au carbone et alli\u00e9s qui sont particuli\u00e8rement bien adapt\u00e9s pour \u00eatre transform\u00e9s en outils.<\/span><\/figcaption><\/figure>\n<p><strong><span>L&rsquo;acier \u00e0 outils<\/span><\/strong><span>\u00a0fait r\u00e9f\u00e9rence \u00e0 une vari\u00e9t\u00e9 d&rsquo;\u00a0<strong><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/alloy-steel\/\">aciers au\u00a0<\/a><\/strong><\/span><strong><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/steels-properties-of-steels\/carbon-steel-plain-carbon-steel\/\"><span>carbone<\/span><\/a><span>\u00a0et<\/span><\/strong><span>\u00a0alli\u00e9s particuli\u00e8rement adapt\u00e9s \u00e0 la fabrication d&rsquo;\u00a0<\/span><strong><span>outils<\/span><\/strong><span>\u00a0(poin\u00e7ons, matrices, moules, outils de d\u00e9coupe, de d\u00e9coupage, de formage, d&#8217;emboutissage, de direction et de refendage).\u00a0Leur aptitude vient de leur\u00a0<\/span><strong><span>duret\u00e9 distinctive<\/span><\/strong><span>, de leur\u00a0<\/span><strong><span>r\u00e9sistance \u00e0 l&rsquo;abrasion<\/span><\/strong><span>\u00a0et \u00e0 la d\u00e9formation, et de leur capacit\u00e9 \u00e0 maintenir un tranchant \u00e0 des temp\u00e9ratures \u00e9lev\u00e9es.\u00a0Avec une teneur en carbone comprise entre 0,5% et 1,5%,\u00a0<\/span><strong><span>les aciers \u00e0 outils<\/span><\/strong><span>\u00a0sont fabriqu\u00e9s dans des conditions soigneusement contr\u00f4l\u00e9es pour produire la qualit\u00e9 requise.\u00a0La pr\u00e9sence de carbures dans leur matrice joue un r\u00f4le pr\u00e9pond\u00e9rant dans les qualit\u00e9s des aciers \u00e0 outils.<\/span><\/p>\n<p><span>Ils sont g\u00e9n\u00e9ralement regroup\u00e9s en deux classes:<\/span><\/p>\n<ul>\n<li><strong><span>Aciers au carbone simples<\/span><\/strong><span>\u00a0contenant un pourcentage \u00e9lev\u00e9 de carbone, environ 0,80-1,50 %<\/span><\/li>\n<li><strong><span>Aciers \u00e0 outils alli\u00e9s<\/span><\/strong><span>, dans lesquels d&rsquo;autres \u00e9l\u00e9ments (chrome, molybd\u00e8ne, vanadium, tungst\u00e8ne et cobalt) sont ajout\u00e9s pour fournir une plus grande r\u00e9sistance, t\u00e9nacit\u00e9, r\u00e9sistance \u00e0 la corrosion et \u00e0 la chaleur de l&rsquo;acier.<\/span><\/li>\n<\/ul>\n<p><span>L&rsquo;un des sous-groupes d&rsquo;aciers \u00e0 outils est les aciers rapides (HSS), qui ont \u00e9t\u00e9 nomm\u00e9s principalement pour leur capacit\u00e9 \u00e0 usiner et couper des mat\u00e9riaux \u00e0 grande vitesse (duret\u00e9 \u00e0 chaud \u00e9lev\u00e9e).\u00a0Il est souvent utilis\u00e9 dans les lames de scies \u00e9lectriques et les forets.\u00a0Ce groupe d&rsquo;aciers \u00e0 outils est d\u00e9crit dans un article s\u00e9par\u00e9.<\/span><\/p>\n<h2><span>Exemple d&rsquo;acier \u00e0 outils &#8211; acier A2<\/span><\/h2>\n<p><strong><span>L&rsquo;acier \u00e0 outils A2<\/span><\/strong><span>\u00a0est un acier pour travail \u00e0 froid trempant \u00e0 l&rsquo;air du groupe A contenant du molybd\u00e8ne et du chrome.\u00a0L&rsquo;acier A2 contient 5% d&rsquo;acier au chrome qui offre une duret\u00e9 \u00e9lev\u00e9e apr\u00e8s traitement thermique avec une bonne stabilit\u00e9 dimensionnelle.\u00a0La teneur en carbone des aciers \u00e0 outils A2 est \u00e9lev\u00e9e.\u00a0A2 offre une bonne t\u00e9nacit\u00e9 avec une r\u00e9sistance \u00e0 l&rsquo;usure moyenne et est relativement facile \u00e0 usiner.\u00a0L&rsquo;acier \u00e0 outils A2 peut \u00eatre utilis\u00e9 dans de nombreuses applications qui n\u00e9cessitent une bonne r\u00e9sistance \u00e0 l&rsquo;usure ainsi qu&rsquo;une bonne t\u00e9nacit\u00e9.\u00a0Applications typiques pour l&rsquo;acier A2:<\/span><\/p>\n<ul>\n<li><span>Matrices de formage<\/span><\/li>\n<li><span>D\u00e9coupeuses<\/span><\/li>\n<li><span>Jauges<\/span><\/li>\n<li><span>Lames de cisaillement<\/span><\/li>\n<li><span>Outils de d\u00e9coupage<\/span><\/li>\n<li><span>Poin\u00e7on meurt<\/span><\/li>\n<\/ul>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/Tool-Steel-A2-Steel-composition.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-29157\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/Tool-Steel-A2-Steel-composition.png\" alt=\"Acier \u00e0 outils A2\" width=\"674\" height=\"86\" \/><\/a><\/p>\n<h2><span>Duret\u00e9 de l&rsquo;acier \u00e0 outils &#8211; Acier A2<\/span><\/h2>\n<p><span>Duret\u00e9 Rockwell de l&rsquo;acier \u00e0 outils &#8211; L&rsquo;acier A2 d\u00e9pend du processus de traitement thermique, mais il est d&rsquo;environ 60 HRC.<\/span><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/table-brinell-hardness-numbers.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignright size-full wp-image-28044\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/table-brinell-hardness-numbers.png\" alt=\"Num\u00e9ro de duret\u00e9 Brinell\" width=\"288\" height=\"297\" \/><\/a><\/p>\n<p><strong><span>Le test de duret\u00e9 Rockwell<\/span><\/strong><span> est l&rsquo;un des tests de duret\u00e9 par indentation les plus courants, qui a \u00e9t\u00e9 d\u00e9velopp\u00e9 pour les tests de duret\u00e9.\u00a0Contrairement au test Brinell, le testeur Rockwell mesure la profondeur de p\u00e9n\u00e9tration d&rsquo;un p\u00e9n\u00e9trateur sous une charge importante (charge majeure) par rapport \u00e0 la p\u00e9n\u00e9tration faite par une pr\u00e9charge (charge mineure).\u00a0La charge mineure \u00e9tablit la position z\u00e9ro.\u00a0La charge majeure est appliqu\u00e9e, puis retir\u00e9e tout en maintenant la charge mineure.\u00a0La diff\u00e9rence entre la profondeur de p\u00e9n\u00e9tration avant et apr\u00e8s l&rsquo;application de la charge principale est utilis\u00e9e pour calculer le <\/span><strong><span>nombre de duret\u00e9 Rockwell<\/span><\/strong><span>.\u00a0C&rsquo;est-\u00e0-dire que la profondeur de p\u00e9n\u00e9tration et la duret\u00e9 sont inversement proportionnelles.\u00a0Le principal avantage de la duret\u00e9 Rockwell est sa capacit\u00e9 \u00e0 <\/span><strong><span>afficher directement les valeurs de duret\u00e9<\/span><\/strong><span>.\u00a0Le r\u00e9sultat est un nombre sans dimension not\u00e9 <\/span><strong><span>HRA, HRB, HRC<\/span><\/strong><span>, etc., o\u00f9 la derni\u00e8re lettre est l&rsquo;\u00e9chelle Rockwell respective.<\/span><\/p>\n<p><span>Le test Rockwell C est r\u00e9alis\u00e9 avec un p\u00e9n\u00e9trateur Brale (<\/span><strong><span>c\u00f4ne diamant 120\u00b0<\/span><\/strong><span>) et une charge majeure de 150kg.<\/span><\/p>\n<p><span>\u00a0<\/span><\/p>\n<p><span><\/span><\/p><\/div><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><span><div class=\"su-accordion su-u-trim\"><div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-plus\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>R\u00e9f\u00e9rences :<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">Science des mat\u00e9riaux:<\/div><\/div><\/div><\/span><\/p>\n<p><span>D\u00e9partement am\u00e9ricain de l&rsquo;\u00e9nergie, science des mat\u00e9riaux.\u00a0DOE Fundamentals Handbook, Volume 1 and 2. Janvier 1993.<\/span><br \/>\n<span>US Department of Energy, Material Science.\u00a0DOE Fundamentals Handbook, Volume 2 et 2. Janvier 1993.<\/span><br \/>\n<span>William D. Callister, David G. Rethwisch.\u00a0Science et g\u00e9nie des mat\u00e9riaux : une introduction 9e \u00e9dition, Wiley ;\u00a09 \u00e9dition (4 d\u00e9cembre 2013), ISBN-13\u00a0: 978-1118324578.<\/span><br \/>\n<span>En ligneEberhart, Mark (2003).\u00a0Pourquoi les choses se cassent\u00a0: Comprendre le monde par la mani\u00e8re dont il se d\u00e9compose.\u00a0Harmonie.\u00a0ISBN 978-1-4000-4760-4.<\/span><br \/>\n<span>Gaskell, David R. (1995).\u00a0Introduction \u00e0 la thermodynamique des mat\u00e9riaux (4e \u00e9d.).\u00a0\u00c9ditions Taylor et Francis.\u00a0ISBN 978-1-56032-992-3.<\/span><br \/>\n<span>Gonz\u00e1lez-Vi\u00f1as, W. &amp; Mancini, HL (2004).\u00a0Une introduction \u00e0 la science des mat\u00e9riaux.\u00a0Presse universitaire de Princeton.\u00a0ISBN 978-0-691-07097-1.<\/span><br \/>\n<span>Ashby, Michael;\u00a0Hugh Shercliff;\u00a0David Cebon (2007).\u00a0Mat\u00e9riaux: ing\u00e9nierie, science, traitement et conception (1\u00e8re \u00e9d.).\u00a0Butterworth-Heinemann.\u00a0ISBN 978-0-7506-8391-3.<\/span><br \/>\n<span>JR Lamarsh, AJ Baratta, Introduction au g\u00e9nie nucl\u00e9aire, 3e \u00e9d., Prentice-Hall, 2001, ISBN : 0-201-82498-1.<\/span><br \/>\n<span><\/span><\/p><\/div><\/div><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><div class=\"su-divider su-divider-style-default\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\"><\/div><\/div><div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><span>Voir ci-dessus:<\/span><br \/>\n<span>Acier \u00e0 outils<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/steels-properties-of-steels\/tool-steel\/\" class=\"su-button su-button-style- plat\" style=\"color:#606060;background-color:#ffffff;border-color:#cccccc;border-radius:10px;-moz-border-radius:10px;-webkit-border-radius:10px\" target=\"_self\"><span style=\"color:#606060;padding:7px 20px;font-size:16px;line-height:24px;border-color:#ffffff;border-radius:10px;-moz-border-radius:10px;-webkit-border-radius:10px;text-shadow:0px 0px 0px #000000;-moz-text-shadow:0px 0px 0px #000000;-webkit-text-shadow:0px 0px 0px #000000\"><img src=\"icon : lien\" alt=\"\" style=\"width:24px;height:24px\" \/> <\/span><\/a>[\/su_button ]<\/span><\/p><\/div><\/div><div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\"><\/div><\/div><\/span><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<p><span>Nous esp\u00e9rons que cet article,\u00a0<\/span><strong><span>Duret\u00e9 de l&rsquo;acier \u00e0 outils<\/span><\/strong><span>, vous aidera.\u00a0Si oui,\u00a0<\/span><strong><span>donnez-nous un like<\/span><\/strong><span>\u00a0dans la barre lat\u00e9rale.\u00a0L&rsquo;objectif principal de ce site Web est d&rsquo;aider le public \u00e0 apprendre des informations int\u00e9ressantes et importantes sur les mat\u00e9riaux et leurs propri\u00e9t\u00e9s.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nous esp\u00e9rons que cet article,\u00a0Duret\u00e9 de l&rsquo;acier \u00e0 outils, vous aidera.\u00a0Si oui,\u00a0donnez-nous un like\u00a0dans la barre lat\u00e9rale.\u00a0L&rsquo;objectif principal de ce site Web est d&rsquo;aider le public \u00e0 apprendre des informations int\u00e9ressantes et importantes sur les mat\u00e9riaux et leurs propri\u00e9t\u00e9s.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu&#039;est-ce que la duret\u00e9 de l&#039;acier \u00e0 outils - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles<\/title>\n<meta name=\"description\" content=\"Duret\u00e9 Rockwell de l&#039;acier \u00e0 outils - L&#039;acier A2 d\u00e9pend du processus de traitement thermique, mais il est d&#039;environ 60 HRC. 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