{"id":9548,"date":"2025-08-05T15:04:00","date_gmt":"2025-08-05T07:04:00","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=9548"},"modified":"2026-04-01T15:56:52","modified_gmt":"2026-04-01T07:56:52","slug":"selection-of-tool-steels-for-cold-forming-hexagon-nuts","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/pt\/selection-of-tool-steels-for-cold-forming-hexagon-nuts\/","title":{"rendered":"Sele\u00e7\u00e3o de a\u00e7os para ferramentas para porcas sextavadas de conforma\u00e7\u00e3o a frio"},"content":{"rendered":"
\n

Sele\u00e7\u00e3o de a\u00e7o ferramenta para conforma\u00e7\u00e3o a frio de porcas sextavadas<\/h1>\n\n\n\n

A conforma\u00e7\u00e3o a frio de porcas sextavadas \u00e9 um processo de m\u00faltiplas etapas realizado sob altas cargas de compress\u00e3o e impacto repetido, tipicamente abaixo de 200 \u00b0C. A falha da ferramenta n\u00e3o \u00e9 causada por amolecimento t\u00e9rmico, mas sim por sobrecarga mec\u00e2nica e danos superficiais.<\/p>\n\n\n\n

Na pr\u00e1tica, as ferramentas falham principalmente devido ao desgaste abrasivo, ao desgaste adesivo (gripagem) e \u00e0 deforma\u00e7\u00e3o pl\u00e1stica sob tens\u00e3o de contato excessiva. Modos de falha secund\u00e1rios incluem lascamento das bordas e fissura\u00e7\u00e3o por fadiga sob carregamento c\u00edclico.<\/p>\n\n\n\n

Fatores de sele\u00e7\u00e3o<\/h2>\n\n\n\n

A sele\u00e7\u00e3o do a\u00e7o ferramenta para a conforma\u00e7\u00e3o de porcas sextavadas \u00e9 fundamentalmente um equil\u00edbrio entre resist\u00eancia ao desgaste e tenacidade sob alta tens\u00e3o de compress\u00e3o.<\/p>\n\n\n\n

A alta dureza melhora a resist\u00eancia ao desgaste e \u00e0 deforma\u00e7\u00e3o, o que \u00e9 fundamental para manter a geometria da matriz durante longos per\u00edodos de produ\u00e7\u00e3o. No entanto, o aumento da dureza e do teor de carbonetos reduz a tenacidade, elevando o risco de lascamento das bordas ou fratura fr\u00e1gil sob impacto repetido.<\/p>\n\n\n\n

Como as temperaturas de conforma\u00e7\u00e3o s\u00e3o relativamente baixas, propriedades t\u00e9rmicas como dureza a quente e resist\u00eancia ao trincamento t\u00e9rmico n\u00e3o s\u00e3o determinantes. A sele\u00e7\u00e3o do material deve priorizar o controle do desgaste, a manuten\u00e7\u00e3o da estabilidade dimensional e a preven\u00e7\u00e3o de fraturas sob carregamento c\u00edclico.<\/p>\n\n\n\n

A\u00e7os para ferramentas recomendados<\/h2>\n\n\n\n
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A\u00e7o ferramenta AISI D2 |1.2379 | SKD11<\/h3>\n\n\n\n

O a\u00e7o D2 \u00e9 utilizado em aplica\u00e7\u00f5es onde o desgaste abrasivo e a estabilidade dimensional s\u00e3o os principais requisitos, e a carga de impacto \u00e9 limitada.<\/p>\n\n\n\n

Com uma dureza de trabalho de 58\u201360 HRC, o a\u00e7o D2 oferece alta resist\u00eancia ao desgaste superficial, mantendo a precis\u00e3o durante o tratamento t\u00e9rmico. No entanto, sua menor tenacidade o torna menos adequado para condi\u00e7\u00f5es que envolvem choques repetidos ou cargas inst\u00e1veis.<\/p>\n\n\n\n

O D2 \u00e9 mais adequado para matrizes de precis\u00e3o onde a resist\u00eancia ao desgaste \u00e9 cr\u00edtica e as condi\u00e7\u00f5es de carregamento s\u00e3o bem controladas.<\/p>\n\n\n\n

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Enviar consulta agora<\/a><\/div>\n\n\n\n
Veja os detalhes de fornecimento de materiais D2<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n
\n

A\u00e7o r\u00e1pido M4 (HSS)<\/h3>\n\n\n\n

O perfil M4 \u00e9 utilizado quando o desgaste \u00e9 o principal mecanismo de falha e o volume de produ\u00e7\u00e3o \u00e9 elevado. Seu desempenho \u00e9 melhor sob condi\u00e7\u00f5es de carga est\u00e1veis, onde o lascamento das arestas n\u00e3o \u00e9 o fator limitante.<\/p>\n\n\n\n

Desempenho: Na produ\u00e7\u00e3o, as ferramentas M4 podem produzir mais de 1 milh\u00e3o de pe\u00e7as quando o desgaste controla a vida \u00fatil da ferramenta.
Aprimoramento: Com tratamento t\u00e9rmico otimizado ou endurecimento superficial para 63\u201365 HRC, a vida \u00fatil pode chegar a aproximadamente 2,4 milh\u00f5es de pe\u00e7as.<\/p>\n\n\n\n

O M4 \u00e9 a escolha preferida para produ\u00e7\u00e3o em alt\u00edssimo volume, onde a m\u00e1xima resist\u00eancia ao desgaste determina diretamente a vida \u00fatil da ferramenta.<\/p>\n<\/div>\n\n\n\n

\n

A\u00e7o r\u00e1pido de tungst\u00eanio T1<\/h3>\n\n\n\n

O a\u00e7o T1 \u00e9 selecionado quando h\u00e1 desgaste e impacto, mas nenhum deles \u00e9 extremo. Comparado com a\u00e7os r\u00e1pidos de liga mais alta, ele oferece uma resposta mais equilibrada sob condi\u00e7\u00f5es de carga mista.<\/p>\n\n\n\n

Com tratamento t\u00e9rmico padr\u00e3o (t\u00eampera em \u00f3leo a 1270 \u00b0C e revenido duplo a 595 \u00b0C), o T1 normalmente produz cerca de 350.000 pe\u00e7as.<\/p>\n\n\n\n

O T1 \u00e9 adequado para produ\u00e7\u00e3o de m\u00e9dio a alto volume, onde \u00e9 necess\u00e1ria maior resist\u00eancia para reduzir o risco de lascamento.<\/p>\n<\/div>\n\n\n\n

\n

A\u00e7o carbono para ferramentas (haste de perfura\u00e7\u00e3o tipo W)<\/h3>\n\n\n\n

Para componentes n\u00e3o cr\u00edticos, como pinos-guia ou porta-matrizes \u2014 onde o desgaste direto e o impacto s\u00e3o m\u00ednimos \u2014 o a\u00e7o carbono para ferramentas oferece uma solu\u00e7\u00e3o com boa rela\u00e7\u00e3o custo-benef\u00edcio.<\/p>\n\n\n\n

Com dureza de 58\u201360 HRC, oferece resist\u00eancia \u00e0 compress\u00e3o e rigidez suficientes sem o custo dos a\u00e7os de alta liga.<\/p>\n<\/div>\n\n\n\n

Tabela Resumo<\/h2>\n\n\n\n
A\u00e7o ferramenta de alta qualidade<\/td>Propriedades principais \/ Dureza<\/td>Principal vantagem na forma\u00e7\u00e3o de porcas<\/td><\/tr>
M4<\/td>63\u201365 HRC<\/td>Durabilidade m\u00e1xima: Ideal para produ\u00e7\u00e3o em alt\u00edssimo volume e com foco no uso di\u00e1rio.<\/td><\/tr>
T1<\/td>Temperado a 1270 \u00b0C \/ Revenido a 595 \u00b0C<\/td>Desempenho equilibrado: Adequado para condi\u00e7\u00f5es combinadas de desgaste e impacto.<\/td><\/tr>
D2<\/td>58\u201360 HRC<\/td>Estabilidade e resist\u00eancia ao desgaste: Ideal para matrizes de precis\u00e3o sob carga controlada.<\/td><\/tr>
A\u00e7o carbono<\/td>58\u201360 HRC<\/td>Econ\u00f4mico: Utilizado para componentes estruturais ou de suporte de baixo desgaste.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

Selection of Tool Steel for Cold Forming Hexagon Nuts The cold forming of hexagon nuts is a multi-stage process performed under high compressive loads and repeated impact, typically below 200 \u00b0C. Tool failure is not driven by thermal softening, but by mechanical overload and surface damage. In practice, tooling fails primarily due to abrasive wear, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"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":"default","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":"","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-9548","page","type-page","status-publish","hentry"],"yoast_head":"\nSelection of Tool Steels for Cold Forming Hexagon Nuts | AoboSteel<\/title>\n<meta name=\"description\" content=\"Select the right tool steel for cold forming hexagon nuts based on wear and impact conditions. M4, T1, and D2 available for bulk supply with stable quality and fast delivery.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/aobosteel.com\/pt\/selection-of-tool-steels-for-cold-forming-hexagon-nuts\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Selection of Tool Steels for Cold Forming Hexagon Nuts\" \/>\n<meta property=\"og:description\" content=\"Select the right tool steel for cold forming hexagon nuts based on wear and impact conditions. 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