{"id":3891,"date":"2023-12-21T13:13:38","date_gmt":"2023-12-21T05:13:38","guid":{"rendered":"https:\/\/miharmle-cnc.com\/?p=3891"},"modified":"2024-01-31T13:50:03","modified_gmt":"2024-01-31T05:50:03","slug":"o-que-e-uma-prensa-dobradeira","status":"publish","type":"post","link":"https:\/\/miharmle-cnc.com\/pt\/blog\/what-is-a-press-brake\/","title":{"rendered":"O que \u00e9 uma prensa dobradeira e como us\u00e1-la?"},"content":{"rendered":"<div class=\"row\"  id=\"row-39024243\">\n\n\t<div id=\"col-788218002\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Introdu\u00e7\u00e3o<\/h2>\n<p>Entre os muitos legados da era industrial est\u00e1 o desenvolvimento da prensa dobradeira, tanto como t\u00e9cnica quanto como ferramenta. A prensa dobradeira consiste em dobrar metais por meio de press\u00e3o para obter dimens\u00f5es e \u00e2ngulos precisos.<\/p>\n<p>De objetos de decora\u00e7\u00e3o para o lar at\u00e9 aplica\u00e7\u00f5es industriais, as prensas dobradeiras atendem a projetos simples e complexos em diversos setores. N\u00e3o \u00e9 de se admirar que essa m\u00e1quina tenha sido importante por d\u00e9cadas e continue sendo at\u00e9 hoje.<\/p>\n<p>Continue lendo para saber mais sobre a prensa dobradeira e como ela contribui para diversos setores.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-1519842693\">\n\n\t<div id=\"col-95856101\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<div class=\"row\"  id=\"row-700246614\">\n\n\t<div id=\"col-1821170288\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1092228897\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"1000\" height=\"750\" src=\"https:\/\/miharmle-cnc.com\/wp-content\/uploads\/2023\/12\/What-Do-Press-Brakes-Do.webp\" class=\"attachment-original size-original\" alt=\"Para que servem as prensas dobradoras?\" srcset=\"https:\/\/miharmle-cnc.com\/wp-content\/uploads\/2023\/12\/What-Do-Press-Brakes-Do.webp 1000w, https:\/\/miharmle-cnc.com\/wp-content\/uploads\/2023\/12\/What-Do-Press-Brakes-Do-300x225.webp 300w, https:\/\/miharmle-cnc.com\/wp-content\/uploads\/2023\/12\/What-Do-Press-Brakes-Do-768x576.webp 768w, https:\/\/miharmle-cnc.com\/wp-content\/uploads\/2023\/12\/What-Do-Press-Brakes-Do-800x600.webp 800w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1092228897 {\n  width: 100%;\n}\n@media (min-width:550px) {\n  #image_1092228897 {\n    width: 66%;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<h2>Para que servem as prensas dobradoras?<\/h2>\n<p>Os metais s\u00e3o amplamente utilizados em diversas aplica\u00e7\u00f5es, mas, para que possam ser utilizados, precisam ser moldados em \u00e2ngulos e formas precisas. Embora os metais, como as chapas de a\u00e7o, sejam materiais vers\u00e1teis, ainda assim \u00e9 necess\u00e1rio contar com o equipamento adequado para fabric\u00e1-los corretamente \u2014 e \u00e9 a\u00ed que entram as prensas dobradoras.<\/p>\n<p>As prensas dobradoras s\u00e3o ferramentas mec\u00e2nicas destinadas \u00e0 conforma\u00e7\u00e3o e \u00e0 dobra de metais. Uma prensa dobradora funciona por meio de duas ferramentas: a superior, chamada pun\u00e7\u00e3o, e a inferior, chamada matriz.<\/p>\n<p>O princ\u00edpio b\u00e1sico de uma ferramenta de prensa dobradeira consiste em aplicar press\u00e3o ou for\u00e7a (tonelagem) nas pe\u00e7as para mold\u00e1-las ou dobr\u00e1-las. \u00c9 necess\u00e1rio fixar o molde adequado na matriz para obter o \u00e2ngulo e as dobras desejadas.<\/p>\n<p>Uma prensa dobradeira apresenta diferentes capacidades nominais, aplica\u00e7\u00f5es e limites de carga. Dependendo do grau de simplicidade ou complexidade do projeto, a m\u00e1quina certa garante que voc\u00ea obtenha a dobra adequada e o resultado desejado.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-1296631937\">\n\n\t<div id=\"col-1078350755\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Por que ela \u00e9 chamada de prensa dobradeira?<\/h2>\n<p>As palavras \u201cbreak\u201d, \u201cbegan\u201d, \u201cbreak\u201d e \u201cbreach\u201d s\u00e3o cognatas do ingl\u00eas antigo. \u201cBreak\u201d, que no ingl\u00eas m\u00e9dio era \u201cbroken\u201d, significa \u201cquebrar, destruir, dobrar ou fragmentar\u201d.\u201d<\/p>\n<p>A partir do s\u00e9culo XIV, a palavra \u201cbrake\u201d passou a designar uma ferramenta usada para triturar e moer gr\u00e3os. Posteriormente, a palavra \u201cbrake\u201d tornou-se sin\u00f4nimo de m\u00e1quina.<\/p>\n<p>Por outro lado, \u201cpress\u201d \u00e9 uma palavra do ingl\u00eas medieval que significa \u201cbater ou golpear\u201d. Posteriormente, a palavra \u201cpress\u201d passou a ser usada para designar uma m\u00e1quina utilizada para espremer roupas ou suco.<\/p>\n<p>\u201cPrensa\u201d refere-se a uma m\u00e1quina que aplica for\u00e7a ou press\u00e3o sobre um objeto. Ao longo da hist\u00f3ria moderna, o termo \u201cprensa dobradeira\u201d passou a designar a m\u00e1quina que dobra metais por meio de for\u00e7a.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-585712231\">\n\n\t<div id=\"col-1419026445\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Tipos de prensas dobradoras<\/h2>\n<p>Al\u00e9m de apresentarem diferentes capacidades de carga e aplica\u00e7\u00f5es, as prensas dobradeiras tamb\u00e9m podem ser de diferentes tipos. A seguir, apresentamos os tipos mais comuns de prensas dobradeiras que voc\u00ea pode utilizar.<\/p>\n<ul>\n<li><strong>Prensa dobradeira manual <\/strong><\/li>\n<\/ul>\n<p>Como toda inova\u00e7\u00e3o, a prensa de freio tem suas origens na forma manual mais primitiva. Uma prensa de freio manual apresenta o menor custo operacional, mas continua sendo um trabalho muito pesado e ineficiente.<\/p>\n<p>O uso dessa ferramenta exige que o operador defina manualmente os \u00e2ngulos e as dimens\u00f5es do molde. Esse processo manual j\u00e1 leva algum tempo; portanto, para evitar uma perda adicional de tempo, a produ\u00e7\u00e3o em massa \u00e9 realizada assim que todas as dimens\u00f5es e \u00e2ngulos do molde estiverem definidos. Isso evita a necessidade de alterar repetidamente a configura\u00e7\u00e3o da ferramenta.<\/p>\n<p>As prensas dobradoras manuais tamb\u00e9m s\u00e3o comumente chamadas de prensas dobradoras de chapas met\u00e1licas. Embora hoje estejam um tanto ultrapassadas, muitos artes\u00e3os, ferreiros aut\u00f4nomos e at\u00e9 mesmo mec\u00e2nicos de pequena escala continuam a utiliz\u00e1-las e a apreciar o trabalho manual que elas exigem.<\/p>\n<div class=\"row\"  id=\"row-1586457991\">\n\n\t<div id=\"col-299229754\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_267031711\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/miharmle-cnc.com\/wp-content\/uploads\/2023\/12\/DA58T-Controller-Hydraulic-Press-Brake-Bending-Machine-for-menu.webp\" class=\"attachment-original size-original\" alt=\"M\u00e1quina de dobra hidr\u00e1ulica com controlador DA58T para o menu\" srcset=\"https:\/\/miharmle-cnc.com\/wp-content\/uploads\/2023\/12\/DA58T-Controller-Hydraulic-Press-Brake-Bending-Machine-for-menu.webp 800w, https:\/\/miharmle-cnc.com\/wp-content\/uploads\/2023\/12\/DA58T-Controller-Hydraulic-Press-Brake-Bending-Machine-for-menu-300x188.webp 300w, https:\/\/miharmle-cnc.com\/wp-content\/uploads\/2023\/12\/DA58T-Controller-Hydraulic-Press-Brake-Bending-Machine-for-menu-768x480.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_267031711 {\n  width: 100%;\n}\n@media (min-width:550px) {\n  #image_267031711 {\n    width: 62%;\n  }\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<ul>\n<li><strong>Prensa dobradeira hidr\u00e1ulica<\/strong><\/li>\n<\/ul>\n<p>A prensa dobradeira hidr\u00e1ulica \u00e9 talvez o tipo de prensa dobradeira mais f\u00e1cil de distinguir e o mais conhecido atualmente. Esse tipo de prensa dobradeira \u00e9 f\u00e1cil de identificar devido ao seu cilindro hidr\u00e1ulico, que suporta uma grande tonelagem para dobrar chapas de metal ainda mais espessas.<\/p>\n<p>A press\u00e3o desta m\u00e1quina pode chegar a 1.200 toneladas e dobrar chapas met\u00e1licas de at\u00e9 8 mm de espessura. As prensas dobradeiras hidr\u00e1ulicas proporcionam ao operador um melhor controle, o que faz com que sejam mais utilizadas do que as prensas manuais.<\/p>\n<p>Al\u00e9m de suas aplica\u00e7\u00f5es industriais de maior porte, as prensas hidr\u00e1ulicas podem ser especializadas, o que as torna uma op\u00e7\u00e3o adequada para linhas de produ\u00e7\u00e3o e montagem. Embora essa m\u00e1quina possa ser mais barata do que seus modelos mais modernos, ela ainda consome muita energia el\u00e9trica, mesmo quando est\u00e1 ociosa.<strong><span style=\"color: #000080;\"> Clique para ver a prensa dobradeira hidr\u00e1ulica CNC.<\/span><\/strong><\/p>\n<ul>\n<li><strong>Prensa dobradeira CNC <\/strong><\/li>\n<\/ul>\n<p><strong>\u00a0<\/strong>Dobrar metal n\u00e3o \u00e9 uma tarefa f\u00e1cil; no entanto, quando automatizada, torna-se menos trabalhosa e mais eficiente. \u00c9 isso que faz a prensa dobradeira CNC, ou seja, a m\u00e1quina controlada numericamente por computador.<\/p>\n<p>As prensas dobradoras CNC s\u00e3o m\u00e1quinas el\u00e9tricas e automatizadas que utilizam servomotores para gerar press\u00e3o, em vez de sistemas hidr\u00e1ulicos. Por serem automatizadas, basta programar a m\u00e1quina inserindo dados como as dimens\u00f5es da chapa, os \u00e2ngulos de dobra, o n\u00famero de pe\u00e7as etc., e deix\u00e1-la fazer o resto por voc\u00ea.<\/p>\n<p>Esse tipo de prensa dobradeira \u00e9 o mais f\u00e1cil de operar, permitindo at\u00e9 mesmo que o operador trabalhe em v\u00e1rias m\u00e1quinas ao mesmo tempo sem ter que se esfor\u00e7ar muito. A desvantagem, por\u00e9m, \u00e9 seu pre\u00e7o elevado.<\/p>\n<p>No entanto, continua sendo um investimento razo\u00e1vel, pois dobra sua produtividade. Al\u00e9m disso, apresenta custos operacionais mais baixos devido ao menor consumo de energia em compara\u00e7\u00e3o com uma prensa hidr\u00e1ulica. Embora tenha menor capacidade de carga do que as hidr\u00e1ulicas.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-1047932489\">\n\n\t<div id=\"col-1308006640\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Como funciona o processo de dobra?<\/h2>\n<p>O processo de dobra da prensa dobradeira gira em torno do pr\u00f3prio princ\u00edpio da prensa dobradeira como t\u00e9cnica de aplica\u00e7\u00e3o de for\u00e7a. A press\u00e3o ou a tonelagem exercida por uma prensa dobradeira \u00e9 respons\u00e1vel por dobrar as chapas met\u00e1licas nas dimens\u00f5es e \u00e2ngulos desejados.<br \/>Essa press\u00e3o \u00e9 transmitida por meio do pun\u00e7\u00e3o, comprimindo o metal de acordo com o perfil da matriz situada abaixo. \u00c9 aplicada uma tonelagem diferente, dependendo da espessura do material a ser dobrado.<br \/>Existem diferentes m\u00e9todos de aplica\u00e7\u00e3o de for\u00e7a, que costumam ser indicados no nome da prensa dobradeira, como nas prensas hidr\u00e1ulicas ou nas prensas servo. As prensas hidr\u00e1ulicas s\u00e3o a escolha ideal quando \u00e9 necess\u00e1ria muita press\u00e3o, enquanto as m\u00e1quinas servo s\u00e3o conhecidas pela precis\u00e3o e pela dobra exata.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-430891573\">\n\n\t<div id=\"col-243561012\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Aplica\u00e7\u00f5es da prensa dobradeira<\/h2>\n<p>T\u00e3o vers\u00e1til quanto a chapa met\u00e1lica, a aplica\u00e7\u00e3o da prensa dobradeira pode ser ilimitada. Em tudo o que voc\u00ea imaginar que utilize um peda\u00e7o de metal, seja ele pequeno ou grande, a prensa dobradeira pode ser de grande utilidade. Seja por sua funcionalidade ou por seu valor ornamental, as prensas dobradeiras conquistaram relev\u00e2ncia em praticamente todos os setores da ind\u00fastria atual.<\/p>\n<p>Aqui est\u00e3o as aplica\u00e7\u00f5es mais comuns de uma prensa dobradeira:<\/p>\n<ul>\n<li><strong>Residencial<\/strong>\u2013 fabrica\u00e7\u00e3o de materiais para a casa, incluindo materiais decorativos, pain\u00e9is para portas e janelas e equipamentos de cozinha.<\/li>\n<\/ul>\n<ul>\n<li><strong>M\u00e9dico<\/strong>\u2013 fabrica\u00e7\u00e3o de equipamentos e m\u00e1quinas m\u00e9dicas que exigem precis\u00e3o m\u00e1xima e pe\u00e7as complexas.<\/li>\n<\/ul>\n<ul>\n<li><strong>Transporte<\/strong>\u2013 desde a fabrica\u00e7\u00e3o de pain\u00e9is de portas de autom\u00f3veis at\u00e9 pe\u00e7as e componentes aeroespaciais.<\/li>\n<\/ul>\n<ul>\n<li><strong>Industrial- <\/strong>fabrica\u00e7\u00e3o de pe\u00e7as para geradores de energia, maquin\u00e1rio pesado, postes de ilumina\u00e7\u00e3o e equipamentos em escala industrial.<\/li>\n<\/ul>\n<ul>\n<li><strong>Arquitetura e Constru\u00e7\u00e3o- <\/strong>desde a fabrica\u00e7\u00e3o de andaimes e revestimentos met\u00e1licos at\u00e9 a fabrica\u00e7\u00e3o de pe\u00e7as para equipamentos e m\u00e1quinas de constru\u00e7\u00e3o.<\/li>\n<\/ul>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-1596159424\">\n\n\t<div id=\"col-1389513857\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Como usar uma prensa dobradeira?<\/h2>\n<p>Embora os diferentes tipos de prensas dobradeiras tenham especifica\u00e7\u00f5es t\u00e9cnicas e manuais de opera\u00e7\u00e3o distintos, existe um procedimento geral para o uso da prensa dobradeira que voc\u00ea pode seguir. Independentemente do tipo de prensa dobradeira que voc\u00ea estiver utilizando, \u00e9 poss\u00edvel seguir essas etapas gerais para trabalhar de forma segura e adequada.<\/p>\n<div class=\"row\"  id=\"row-1808930059\">\n\n\t<div id=\"col-1460812500\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n<div class=\"video video-fit mb\" style=\"padding-top:56.25%;\"><p><iframe title=\"M\u00e1quina de dobra hidr\u00e1ulica Tp10s com controlador \u2013 M\u00e1quina de dobra por press\u00e3o de 63 t e 2.500 mm \u2013 Modelo de m\u00e1quina de dobra\" width=\"1020\" height=\"574\" src=\"https:\/\/www.youtube.com\/embed\/ZkoKFW82BSo?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/p>\n<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<ol>\n<li><strong>Verifique o equipamento<\/strong>: certifique-se de que a m\u00e1quina esteja em boas condi\u00e7\u00f5es de funcionamento antes de tentar lig\u00e1-la. Verifique se todos os componentes est\u00e3o funcionando corretamente e n\u00e3o apresentam danos. Certifique-se de usar equipamentos de prote\u00e7\u00e3o antes de operar a m\u00e1quina.<\/li>\n<li><strong>Instale as matrizes adequadas<\/strong>: sabendo em qual pe\u00e7a e em qual produto voc\u00ea vai trabalhar, certifique-se de que tanto a matriz superior quanto a inferior sejam adequadas para o trabalho.<\/li>\n<\/ol>\n<ol start=\"3\">\n<li><strong>Definir os par\u00e2metros da m\u00e1quina<\/strong>: prossiga com a configura\u00e7\u00e3o das par\u00e2metros da m\u00e1quina: press\u00e3o, tipo e espessura do material, velocidade e \u00e2ngulos de dobra.<\/li>\n<\/ol>\n<ol start=\"4\">\n<li><strong>Posicionar a chapa met\u00e1lica<\/strong>: coloque a chapa ou placa de metal sobre a mesa de trabalho da m\u00e1quina, utilizando a ferramenta de posicionamento adequada para garantir um posicionamento uniforme e correto.<\/li>\n<\/ol>\n<ol start=\"5\">\n<li><strong>Ligue a m\u00e1quina<\/strong>: clique no bot\u00e3o \u201cIniciar\u201d, mova o pun\u00e7\u00e3o e fa\u00e7a algumas dobras no metal.<\/li>\n<\/ol>\n<ol start=\"6\">\n<li><strong>Acompanhar o trabalho<\/strong>: seja automatizado ou n\u00e3o, \u00e9 preciso monitorar continuamente o processo de dobra para garantir que a chapa met\u00e1lica esteja sendo dobrada com a configura\u00e7\u00e3o correta.<\/li>\n<\/ol>\n<ol start=\"7\">\n<li><strong>Conclua sua tarefa<\/strong>: ap\u00f3s a dobra, desligue a prensa dobradeira e retire o produto acabado. Verifique a qualidade da dobra para garantir que a forma esteja precisa.<\/li>\n<\/ol>\n<ol start=\"8\">\n<li><strong>Desligue a m\u00e1quina<\/strong>: feche a m\u00e1quina e desligue-a. Limpe e reorganize sua \u00e1rea de trabalho para garantir maior seguran\u00e7a no pr\u00f3ximo trabalho.<\/li>\n<\/ol>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<div class=\"row\"  id=\"row-1845121934\">\n\n\t<div id=\"col-1824000698\" class=\"col small-12 large-12\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n<h2>Conclus\u00e3o<\/h2>\n<p>A hist\u00f3ria das prensas dobradeiras percorreu um longo caminho. Ao longo de d\u00e9cadas de inova\u00e7\u00e3o e relev\u00e2ncia ininterrupta, as prensas dobradeiras tornaram-se cada vez mais \u00fateis para acelerar o desenvolvimento de diversos setores.<\/p>\n<p>Embora os freios hidr\u00e1ulicos continuem sendo t\u00e3o importantes, especialmente em aplica\u00e7\u00f5es industriais de maior porte, as m\u00e1quinas CNC est\u00e3o se tornando cada vez mais comuns devido \u00e0 sua precis\u00e3o e exatid\u00e3o incompar\u00e1veis.<\/p>\n<p>Hoje em dia, continuam a existir diversos tipos de prensas dobradeiras, embora o mesmo princ\u00edpio b\u00e1sico de aplica\u00e7\u00e3o de for\u00e7a continue sendo seu elemento central. De fato, a utilidade e a aplica\u00e7\u00e3o pr\u00e1tica das prensas dobradeiras n\u00e3o diminuem, mas se fortalecem ainda mais com o passar do tempo.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The blog introduces the definition and working principle of the bending machine, highlighting the versatility of the bending machine in the manufacturing field. Discuss the range of applications and different types of press brakes. 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