{"id":9535,"date":"2025-08-05T14:31:06","date_gmt":"2025-08-05T06:31:06","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=9535"},"modified":"2026-06-25T11:57:07","modified_gmt":"2026-06-25T03:57:07","slug":"selection-of-steels-for-coining-dies","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/selection-of-steels-for-coining-dies\/","title":{"rendered":"Melhor a\u00e7o ferramenta para cunhos de cunhagem | Guia D2, A2, S7, H13"},"content":{"rendered":"<section class=\"aobo-coining-dies-page\">\n  <style>\n    .aobo-coining-dies-page {\n      --aobo-blue: #0c56d0;\n      --aobo-blue-dark: #073b8e;\n      --aobo-blue-soft: #eaf2ff;\n      --aobo-blue-line: #c9dcff;\n      --aobo-border: #d7e5fb;\n      --aobo-text: #203044;\n      --aobo-muted: #617087;\n      --aobo-orange: #f59b23;\n      --aobo-white: #ffffff;\n      --aobo-shadow: 0 18px 45px rgba(12, 86, 208, 0.10);\n      --aobo-page-width: 1180px;\n      --aobo-copy-width: 920px;\n      font-family: Arial, 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O material da pe\u00e7a \u00e9 totalmente confinado dentro da cavidade do cunho, de modo que este deve for\u00e7ar o fluxo de material para preencher detalhes minuciosos, como arestas vivas, pequenas cavidades, texturas e padr\u00f5es decorativos.<\/p>\n      <p>Para esse tipo de ferramenta, a sele\u00e7\u00e3o do material n\u00e3o pode se basear apenas na dureza ou na resist\u00eancia geral. O a\u00e7o ferramenta selecionado deve ser adequado aos principais riscos de falha: desgaste, deforma\u00e7\u00e3o pl\u00e1stica, fissuras, lascamento ou distor\u00e7\u00e3o por tratamento t\u00e9rmico.<\/p>\n    <\/header>\n\n    <section class=\"aobo-product-strip\" aria-label=\"A\u00e7os recomendados para matrizes de cunhagem\">\n      <h2>A\u00e7os recomendados para matrizes de cunhagem<\/h2>\n      <p class=\"aobo-strip-intro\">Use esses cart\u00f5es de produto sem imagem como uma superf\u00edcie de sele\u00e7\u00e3o r\u00e1pida. Escolha classes de resist\u00eancia ao desgaste quando a perda de detalhes controlar a vida \u00fatil da ferramenta e escolha classes mais resistentes quando rachaduras, lascas ou fissuras controlarem a falha.<\/p>\n\n      <div class=\"aobo-product-grid\">\n        <article class=\"aobo-product-card\">\n          <div>\n            <span class=\"aobo-tag\">Retrabalho f\u00e1cil<\/span>\n            <h3>A\u00e7o para ferramentas O1 <small>1.2510 \/ SKS3<\/small><\/h3>\n            <p class=\"aobo-card-note\">Para tiragens curtas, metais macios, cunhagem em geral e matrizes que se beneficiam de usinagem e retrabalho mais f\u00e1ceis antes do endurecimento.<\/p>\n          <\/div>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/o1-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-product-card\">\n          <div>\n            <span class=\"aobo-tag\">Estabilidade dimensional<\/span>\n            <h3>A\u00e7o para ferramentas A2 <small>1.2363 \/ SKD12<\/small><\/h3>\n            <p class=\"aobo-card-note\">Para tiragens m\u00e9dias, matrizes maiores, formatos complexos e ferramentas de cunhagem que exigem melhor controle dimensional do que as ligas de t\u00eampera em \u00f3leo.<\/p>\n          <\/div>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/a2-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-product-card\">\n          <div>\n            <span class=\"aobo-tag\">Corridas longas<\/span>\n            <h3>A\u00e7o para ferramentas D2 <small>1.2379 \/ SKD11<\/small><\/h3>\n            <p class=\"aobo-card-note\">Para longas s\u00e9ries de produ\u00e7\u00e3o, alta press\u00e3o, desgaste abrasivo, reten\u00e7\u00e3o de arestas e matrizes de cunhagem onde os detalhes da superf\u00edcie se desgastam primeiro.<\/p>\n          <\/div>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/d2-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-product-card\">\n          <div>\n            <span class=\"aobo-tag\">Abras\u00e3o severa<\/span>\n            <h3>A\u00e7o ferramenta D3 <small>1.2080 \/ SKD1<\/small><\/h3>\n            <p class=\"aobo-card-note\">Para matrizes simples e bem suportadas, onde o desgaste abrasivo severo \u00e9 o principal problema e o risco de impacto ou fissuras \u00e9 baixo.<\/p>\n          <\/div>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/d3-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-product-card\">\n          <div>\n            <span class=\"aobo-tag\">Detalhes n\u00edtidos<\/span>\n            <h3>A\u00e7o para ferramentas S1 <small>1.2550 \/ SKS41<\/small><\/h3>\n            <p class=\"aobo-card-note\">Para desenhos complexos, detalhes precisos e matrizes de cunhagem sens\u00edveis a rachaduras, onde a resist\u00eancia \u00e0 fratura \u00e9 mais importante do que a vida \u00fatil m\u00e1xima.<\/p>\n          <\/div>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/s1-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-product-card\">\n          <div>\n            <span class=\"aobo-tag\">Risco de rachaduras<\/span>\n            <h3>A\u00e7o ferramenta S7 <small>1.2355<\/small><\/h3>\n            <p class=\"aobo-card-note\">Para matrizes, pun\u00e7\u00f5es ou insertos expostos a choques, lascas, fissuras ou fraturas repentinas antes que o desgaste abrasivo se torne predominante.<\/p>\n          <\/div>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/s7-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-product-card\">\n          <div>\n            <span class=\"aobo-tag\">Suporte robusto<\/span>\n            <h3>A\u00e7o ferramenta L6 <small>1.2714 \/ SKT4<\/small><\/h3>\n            <p class=\"aobo-card-note\">Para componentes de cunhagem maiores ou mais resistentes, onde a resist\u00eancia \u00e0 fissura\u00e7\u00e3o e a for\u00e7a de suporte s\u00e3o mais importantes do que a m\u00e1xima resist\u00eancia ao desgaste do carboneto.<\/p>\n          <\/div>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/l6-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-product-card\">\n          <div>\n            <span class=\"aobo-tag\">Se\u00e7\u00f5es finas<\/span>\n            <h3>A\u00e7o para ferramentas H11 <small>1.2343 \/ SKD6<\/small><\/h3>\n            <p class=\"aobo-card-note\">Para se\u00e7\u00f5es finas, ranhuras, suportes fr\u00e1geis e matrizes de precis\u00e3o, onde a resist\u00eancia ajuda a evitar rachaduras sob concentra\u00e7\u00e3o de tens\u00e3o.<\/p>\n          <\/div>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/h11-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <\/div>\n        <\/article>\n\n        <article class=\"aobo-product-card\">\n          <div>\n            <span class=\"aobo-tag\">An\u00e9is de suporte<\/span>\n            <h3>A\u00e7o para ferramentas H13 <small>1.2344 \/ SKD61<\/small><\/h3>\n            <p class=\"aobo-card-note\">Para an\u00e9is de suporte, retentores e ferramentas de cunhagem robustos, onde um inserto fr\u00e1gil e resistente ao desgaste necessita de um suporte de apoio forte.<\/p>\n          <\/div>\n          <div class=\"aobo-buttons\">\n            <a class=\"aobo-btn aobo-btn-detail\" href=\"https:\/\/aobosteel.com\/pt\/h13-tool-steel\/\">Ver detalhes<\/a>\n            <a class=\"aobo-btn aobo-btn-inquiry popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n          <\/div>\n        <\/article>\n\n      <\/div>\n    <\/section>\n\n    <main class=\"aobo-article\">\n      <p>Um a\u00e7o com excelente resist\u00eancia ao desgaste pode rachar se a matriz tiver detalhes pontiagudos ou suporte inadequado. Um a\u00e7o mais resistente pode suportar melhor o impacto, mas pode desgastar-se ou deformar-se muito rapidamente em longos per\u00edodos de produ\u00e7\u00e3o. A escolha correta depende de qual modo de falha controla a vida \u00fatil da ferramenta.<\/p>\n\n      <h2>Tabela de sele\u00e7\u00e3o r\u00e1pida de materiais para cunhagem de matrizes<\/h2>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Condi\u00e7\u00e3o\/Requisito<\/th><th>A\u00e7o ferramenta recomendado<\/th><th>Motivo principal<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Tiragens curtas, design raso, matrizes reutiliz\u00e1veis<\/td><td>W1, W2, O1 (1.2510 \/ SKS3)<\/td><td>F\u00e1cil de usinar, retrabalhar e manter.<\/td><\/tr>\n            <tr><td>Percursos m\u00e9dios com controle de tamanho<\/td><td>A2 (1.2363 \/ SKD12)<\/td><td>Melhor estabilidade dimensional do que as classes de endurecimento em \u00f3leo.<\/td><\/tr>\n            <tr><td>Longos per\u00edodos de uso com alto desgaste e press\u00e3o<\/td><td>D2 (1.2379 \/ SKD11), D3 (1.2080 \/ SKD1), D4<\/td><td>O alto teor de carbonetos proporciona forte resist\u00eancia ao desgaste e \u00e0 compress\u00e3o.<\/td><\/tr>\n            <tr><td>Desenhos profundos, detalhes precisos, risco de rachaduras<\/td><td>S1 (1.2550\/SKS41), S7 (1.2355), L6 (1.2714\/SKT4)<\/td><td>Uma maior resist\u00eancia reduz o lascamento e a fratura.<\/td><\/tr>\n            <tr><td>Se\u00e7\u00f5es finas, sulcos, suporte fr\u00e1gil<\/td><td>H11 (1.2343 \/ SKD6), H12, H13 (1.2344 \/ SKD61)<\/td><td>Uma maior resist\u00eancia ajuda a prevenir rachaduras sob concentra\u00e7\u00e3o de tens\u00e3o.<\/td><\/tr>\n            <tr><td>demanda de produ\u00e7\u00e3o extrema<\/td><td>A\u00e7os ferramenta PM, insertos de metal duro<\/td><td>Maior resist\u00eancia ao desgaste com melhor suporte estrutural quando projetado corretamente.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h2>Por que as matrizes de cunhagem de precis\u00e3o falham<\/h2>\n      <p>A falha em matrizes de cunhagem de precis\u00e3o geralmente resulta de quatro causas principais: desgaste superficial, deforma\u00e7\u00e3o pl\u00e1stica, fissuras e instabilidade dimensional. Cada modo de falha aponta para uma dire\u00e7\u00e3o diferente na sele\u00e7\u00e3o de materiais.<\/p>\n\n      <h3>1. Desgaste e perda de detalhes<\/h3>\n      <p>O desgaste ocorre quando o contato repetido sob alta press\u00e3o danifica gradualmente a superf\u00edcie da matriz. Na cunhagem de precis\u00e3o, isso leva \u00e0 perda de detalhes finos, bordas arredondadas, reprodu\u00e7\u00e3o de superf\u00edcie deficiente e redu\u00e7\u00e3o da precis\u00e3o dimensional.<\/p>\n      <p>Se o desgaste for o principal modo de falha, o a\u00e7o para matrizes precisa de maior dureza, suporte de metal duro mais robusto e melhor resist\u00eancia \u00e0 abras\u00e3o. A\u00e7os ferramenta D2, D3, D4, PM ou insertos de metal duro s\u00e3o geralmente mais adequados do que a\u00e7os tenazes de baixa liga.<\/p>\n\n      <h3>2. Deforma\u00e7\u00e3o Pl\u00e1stica e Afundamento<\/h3>\n      <p>A deforma\u00e7\u00e3o pl\u00e1stica ocorre quando a superf\u00edcie da matriz n\u00e3o consegue resistir \u00e0 carga compressiva aplicada. A superf\u00edcie come\u00e7a a afundar, alargar ou perder sua geometria original.<\/p>\n      <p>Esse problema \u00e9 comum quando a press\u00e3o \u00e9 alta, a \u00e1rea de contato \u00e9 grande ou o material da matriz n\u00e3o \u00e9 suficientemente duro ap\u00f3s o tratamento t\u00e9rmico. Nesse caso, a sele\u00e7\u00e3o deve priorizar a\u00e7os com maior dureza e resist\u00eancia \u00e0 compress\u00e3o, como D2, D3 ou a\u00e7os metal\u00fargicos adequados.<\/p>\n\n      <h3>3. Rachaduras, lascas e fissuras<\/h3>\n      <p>A fissura\u00e7\u00e3o \u00e9 frequentemente causada pela concentra\u00e7\u00e3o de tens\u00f5es combinada com tenacidade insuficiente. Cantos vivos, impress\u00f5es profundas, nervuras finas e se\u00e7\u00f5es mal suportadas podem criar picos de tens\u00e3o localizados. Sob carregamento repetido, as fissuras podem iniciar nessas \u00e1reas e progredir para lascamento ou fratura completa.<\/p>\n      <p>Se a fissura\u00e7\u00e3o for o principal modo de falha, a\u00e7os de alta resist\u00eancia ao desgaste, como D2 ou D3, podem n\u00e3o ser a escolha mais segura. A\u00e7os mais resistentes, como os da s\u00e9rie S, L6, H11, H12 ou H13, podem oferecer uma vida \u00fatil mais longa, mesmo que sua resist\u00eancia ao desgaste seja menor.<\/p>\n\n      <h3>4. Distor\u00e7\u00e3o por tratamento t\u00e9rmico<\/h3>\n      <p>Os cunhos de cunhagem de precis\u00e3o geralmente exigem um controle dimensional rigoroso. Se o cunho mudar de tamanho ou forma durante o processo de t\u00eampera, mesmo uma pequena distor\u00e7\u00e3o pode torn\u00e1-lo inutiliz\u00e1vel.<\/p>\n      <p>Para matrizes maiores, formatos complexos ou ferramentas de alta precis\u00e3o, os a\u00e7os de t\u00eampera ao ar, como o A2 ou o A6, s\u00e3o frequentemente preferidos por oferecerem melhor estabilidade dimensional do que os a\u00e7os de t\u00eampera em \u00e1gua ou em \u00f3leo.<\/p>\n\n      <h2>Ferramenta de sele\u00e7\u00e3o de a\u00e7o para cunhos de cunhagem de acordo com as condi\u00e7\u00f5es de produ\u00e7\u00e3o.<\/h2>\n      <p>O material correto depende do volume de produ\u00e7\u00e3o, do material da pe\u00e7a, da geometria da matriz e dos requisitos de fabrica\u00e7\u00e3o. Esses fatores determinam se a resist\u00eancia ao desgaste, a tenacidade, a resist\u00eancia \u00e0 compress\u00e3o ou a estabilidade dimensional devem ser priorizadas.<\/p>\n\n      <h3>1. Sele\u00e7\u00e3o por Volume de Produ\u00e7\u00e3o<\/h3>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Condi\u00e7\u00f5es de produ\u00e7\u00e3o<\/th><th>Melhor escolha<\/th><th>Raz\u00e3o<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Produ\u00e7\u00e3o curta, detalhes simples<\/td><td>W1, W2, O1<\/td><td>Baixo custo e facilidade de retrabalho s\u00e3o mais importantes do que m\u00e1xima resist\u00eancia ao desgaste.<\/td><\/tr>\n            <tr><td>Corrida m\u00e9dia<\/td><td>A2<\/td><td>Melhor equil\u00edbrio entre resist\u00eancia ao desgaste e estabilidade dimensional.<\/td><\/tr>\n            <tr><td>Longo prazo<\/td><td>D2, D3, D4<\/td><td>Melhor resist\u00eancia ao desgaste e \u00e0 press\u00e3o superficial.<\/td><\/tr>\n            <tr><td>Produ\u00e7\u00e3o em alt\u00edssimo volume<\/td><td>A\u00e7os PM, insertos de metal duro<\/td><td>M\u00e1xima resist\u00eancia ao desgaste e maior vida \u00fatil da ferramenta quando devidamente suportada.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h3>2. Sele\u00e7\u00e3o por Material da Pe\u00e7a<\/h3>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Material da pe\u00e7a de trabalho<\/th><th>Melhor escolha<\/th><th>Raz\u00e3o<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Metais macios como alum\u00ednio, cobre e metais preciosos<\/td><td>W1, O1<\/td><td>A exig\u00eancia de desgaste \u00e9 moderada e a facilidade de retrabalho \u00e9 valiosa.<\/td><\/tr>\n            <tr><td>A\u00e7o de baixo carbono<\/td><td>O1, A2, D2<\/td><td>A sele\u00e7\u00e3o depende do volume de produ\u00e7\u00e3o e da geometria da matriz.<\/td><\/tr>\n            <tr><td>A\u00e7o inoxid\u00e1vel ou ligas de alta resist\u00eancia<\/td><td>S\u00e9rie S, L6, S\u00e9rie H<\/td><td>Uma maior resist\u00eancia ajuda a reduzir o risco de fissuras sob cargas severas.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h3>3. Sele\u00e7\u00e3o por Geometria da Matriz<\/h3>\n      <div class=\"aobo-table-wrap\">\n        <table class=\"aobo-table\">\n          <thead><tr><th>Geometria do Dado<\/th><th>Melhor escolha<\/th><th>Raz\u00e3o<\/th><\/tr><\/thead>\n          <tbody>\n            <tr><td>Design raso e simples<\/td><td>W1, O1<\/td><td>Baixa concentra\u00e7\u00e3o de estresse<\/td><\/tr>\n            <tr><td>Cavidade profunda ou detalhe n\u00edtido<\/td><td>S\u00e9rie S, L6, S\u00e9rie H<\/td><td>Maior resist\u00eancia reduz o risco de fissuras.<\/td><\/tr>\n            <tr><td>Se\u00e7\u00f5es finas ou suporte fr\u00e1gil<\/td><td>H11, H13<\/td><td>Melhor resist\u00eancia \u00e0 fratura sob tens\u00e3o localizada<\/td><\/tr>\n            <tr><td>Superf\u00edcie decorativa de alta qualidade<\/td><td>A\u00e7o limpo 52100, a\u00e7os-ferramenta limpos selecionados<\/td><td>Uma estrutura mais limpa contribui para melhorar a qualidade da superf\u00edcie.<\/td><\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n\n      <h2>Quando N\u00c3O usar determinados a\u00e7os para ferramentas<\/h2>\n      <h3>1. N\u00e3o utilize a\u00e7os de alta resist\u00eancia ao desgaste quando a fissura\u00e7\u00e3o controlar a falha.<\/h3>\n      <p>Os a\u00e7os D2, D3 e D4 s\u00e3o \u00f3timas op\u00e7\u00f5es quando a resist\u00eancia ao desgaste e a resist\u00eancia \u00e0 compress\u00e3o s\u00e3o os principais requisitos. No entanto, eles n\u00e3o s\u00e3o ideais quando a matriz possui cavidades profundas, detalhes agudos, se\u00e7\u00f5es finas sem suporte ou cargas de choque repetidas.<\/p>\n      <p>O alto teor de carbonetos melhora a resist\u00eancia ao desgaste, mas reduz a tenacidade. Em matrizes sens\u00edveis a trincas, esses carbonetos podem servir como pontos de inicia\u00e7\u00e3o de trincas. Se a matriz lascar, rachar ou fraturar repetidamente, a sele\u00e7\u00e3o deve priorizar a\u00e7os mais resistentes, como os da s\u00e9rie S, L6, H11, H12 ou H13.<\/p>\n\n      <h3>2. N\u00e3o utilize a\u00e7os de baixa liga resistentes quando o desgaste ou o afundamento controlarem a falha.<\/h3>\n      <p>A\u00e7os resistentes s\u00e3o \u00fateis quando o principal risco \u00e9 a fissura\u00e7\u00e3o, mas podem n\u00e3o oferecer resist\u00eancia ao desgaste ou \u00e0 compress\u00e3o suficientes para longos per\u00edodos de produ\u00e7\u00e3o.<\/p>\n      <p>Se a matriz perder detalhes, desgastar-se rapidamente ou ceder sob press\u00e3o, a tenacidade por si s\u00f3 n\u00e3o resolver\u00e1 o problema. Nesse caso, a\u00e7os com maior dureza e maior teor de carbonetos, como D2, D3, D4, a\u00e7os ferramenta PM ou insertos de metal duro s\u00e3o mais adequados.<\/p>\n\n      <h3>3. N\u00e3o dependa de um \u00fanico tipo de a\u00e7o quando resist\u00eancia ao desgaste e tenacidade forem ambas necess\u00e1rias.<\/h3>\n      <p>Algumas aplica\u00e7\u00f5es de cunhagem de precis\u00e3o exigem alta resist\u00eancia ao desgaste e alta resist\u00eancia \u00e0 fratura. Um \u00fanico a\u00e7o pode n\u00e3o atender a ambos os requisitos.<\/p>\n      <p>Nesses casos, uma solu\u00e7\u00e3o estrutural costuma ser melhor. Uma pastilha resistente ao desgaste, feita de a\u00e7o D2, a\u00e7o PM ou metal duro, pode ser suportada por um suporte mais robusto, feito de a\u00e7o H11, H13 ou L6. Isso permite que a superf\u00edcie de trabalho resista ao desgaste, enquanto a estrutura de suporte reduz o risco de fratura.<\/p>\n      <p>Tratamentos ou revestimentos de superf\u00edcie tamb\u00e9m podem ser usados quando um a\u00e7o resistente precisa de melhor resist\u00eancia ao desgaste superficial, mas o a\u00e7o base ainda deve ter resist\u00eancia e estabilidade suficientes para a aplica\u00e7\u00e3o.<\/p>\n\n      <h2>L\u00f3gica de Sele\u00e7\u00e3o Pr\u00e1tica<\/h2>\n      <p>Se a matriz falhar por desgaste ou perda de detalhes, escolha um a\u00e7o com maior dureza, suporte de metal duro mais robusto e melhor resist\u00eancia \u00e0 abras\u00e3o. A\u00e7os ferramenta D2, D3, D4, PM ou insertos de metal duro s\u00e3o geralmente adequados.<\/p>\n      <p>Se a matriz falhar devido \u00e0 deforma\u00e7\u00e3o pl\u00e1stica ou afundamento, o material n\u00e3o possui resist\u00eancia \u00e0 compress\u00e3o suficiente para suportar a press\u00e3o aplicada. A solu\u00e7\u00e3o \u00e9 aumentar a dureza ou utilizar a\u00e7os como D2, D3 ou outros a\u00e7os metal\u00fargicos adequados.<\/p>\n      <p>Se a matriz falhar por rachaduras, lascas ou fissuras, o material \u00e9 muito fr\u00e1gil para a geometria ou condi\u00e7\u00e3o de carregamento. A\u00e7os mais resistentes, como A2, a\u00e7os da s\u00e9rie S, L6, H11, H12 ou H13, devem ser considerados.<\/p>\n      <p>Se a matriz n\u00e3o conseguir manter a precis\u00e3o dimensional ap\u00f3s o tratamento t\u00e9rmico, a estabilidade dimensional torna-se a prioridade. Os a\u00e7os A2 ou A6 podem ser melhores do que os a\u00e7os endurec\u00edveis em \u00e1gua ou \u00f3leo.<\/p>\n      <p>Se a matriz exigir alta resist\u00eancia ao desgaste e alta tenacidade, n\u00e3o dependa apenas da sele\u00e7\u00e3o do material. Utilize um projeto de inserto adequado, suporte apropriado e tratamento t\u00e9rmico apropriado para controlar tanto o desgaste superficial quanto o risco de fratura.<\/p>\n\n      <div class=\"aobo-note-box\">\n        <p>Precisa de ajuda para selecionar o a\u00e7o ferramenta para sua matriz de cunhagem? Compartilhe a geometria da matriz, o material da pe\u00e7a, o volume de produ\u00e7\u00e3o, a dureza desejada e o modo de falha para que a escolha do material seja adequada ao risco real da ferramenta.<\/p>\n      <\/div>\n    <\/main>\n\n    <section class=\"aobo-final-cta\">\n      <div>\n        <h2>Precisa de a\u00e7o ferramenta para cunhagem de matrizes?<\/h2>\n        <p>A Aobo Steel fornece barras e chapas redondas de a\u00e7o ferramenta para matrizes de cunhagem, pun\u00e7\u00f5es, insertos, an\u00e9is de suporte e ferramentas de trabalho a frio de alta press\u00e3o. Envie-nos a especifica\u00e7\u00e3o, o tamanho, a quantidade e a aplica\u00e7\u00e3o desejadas para recebermos uma sugest\u00e3o de fornecimento adequada.<\/p>\n      <\/div>\n      <a class=\"aobo-btn popmake-16052\" href=\"javascript:void(0);\">Enviar consulta<\/a>\n    <\/section>\n  <\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Coining Die Tool Steel Selection The Best Tool Steel for Coining Dies Depends on the Failure Mode Precision coining dies work under extremely high compressive load. The workpiece material is fully constrained inside the die cavity, so the die must force material flow into fine details such as sharp edges, small cavities, textures, and decorative [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":15285,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"normal-width-container","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":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","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":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"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":""},"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":""},"class_list":["post-9535","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.1 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Best Tool Steel for Coining Dies | D2, A2, S7, H13 Guide<\/title>\n<meta name=\"description\" content=\"Aobo Steel explains how to choose the right tool steel based on failure mode. 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