{"id":807,"date":"2025-01-06T03:24:37","date_gmt":"2025-01-06T03:24:37","guid":{"rendered":"https:\/\/www.ylfastener.com\/?p=807"},"modified":"2025-01-06T03:25:25","modified_gmt":"2025-01-06T03:25:25","slug":"what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads","status":"publish","type":"post","link":"https:\/\/www.ylfastener.com\/pt\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/","title":{"rendered":"Qual \u00e9 a diferen\u00e7a entre um parafuso com roscas laminadas e um com roscas cortadas?"},"content":{"rendered":"

Roscas de um fixador mec\u00e2nico, independentemente de ser um\u00a0parafuso de cabe\u00e7a<\/u>,\u00a0haste<\/u>, ou\u00a0loja dentro<\/u>, pode ser produzido por corte ou lamina\u00e7\u00e3o. As diferen\u00e7as, equ\u00edvocos, vantagens e desvantagens de cada m\u00e9todo s\u00e3o descritos abaixo.<\/p>\n

Fios enrolados<\/b><\/strong><\/h3>\n

A rosqueamento por lamina\u00e7\u00e3o \u00e9 um processo pelo qual o a\u00e7o \u00e9 extrudado para formar a por\u00e7\u00e3o rosqueada de um fixador, em vez de ser removido como no rosqueamento por corte. Neste processo, um parafuso \u00e9 fabricado a partir de uma barra redonda de di\u00e2metro reduzido. Por exemplo, um parafuso de 1\u2033 de di\u00e2metro \u00e9 fabricado a partir de uma barra redonda de 0,912\u2033 de di\u00e2metro. Este material de \u201cdi\u00e2metro de passo\u201d \u00e9 aproximadamente o ponto m\u00e9dio entre o di\u00e2metro maior (picos) e o di\u00e2metro menor (vales) das roscas. O parafuso \u00e9 \u201crolado\u201d atrav\u00e9s de um conjunto de matrizes de rosqueamento que desloca o a\u00e7o e forma as roscas. O resultado final \u00e9 um fixador com uma por\u00e7\u00e3o rosqueada de 1\u2033 de di\u00e2metro total, mas um di\u00e2metro de corpo reduzido (0,912). A rosqueamento por lamina\u00e7\u00e3o \u00e9 um processo extremamente eficiente e geralmente resulta em economias de custo significativas. Portanto, a Portland Bolt laminar\u00e1 as roscas sempre que poss\u00edvel.<\/p>\n

 <\/p>\n

Tecnicamente, qualquer especifica\u00e7\u00e3o, com exce\u00e7\u00e3o dos parafusos estruturais A325 e A490, pode ser produzida com corpo reduzido e roscas laminadas.<\/p>\n

 <\/p>\n

Um parafuso com corpo reduzido ser\u00e1 mais fraco do que um parafuso com corpo de tamanho normal.<\/p>\n

A \u00e1rea mais fraca de qualquer fixador mec\u00e2nico \u00e9 o di\u00e2metro menor das roscas. Como as dimens\u00f5es da rosca de um fixador de rosca cortada e de rosca laminada s\u00e3o id\u00eanticas, n\u00e3o h\u00e1 absolutamente nenhuma diferen\u00e7a na resist\u00eancia. Pode-se argumentar que o endurecimento por trabalho que ocorre durante o processo de rosqueamento por lamina\u00e7\u00e3o pode at\u00e9 mesmo tornar o fixador com roscas laminadas mais forte. Al\u00e9m disso, o rosqueamento por corte interrompe a estrutura natural do gr\u00e3o da barra redonda, enquanto o rosqueamento por lamina\u00e7\u00e3o a reforma. Pode-se argumentar novamente que cortar o gr\u00e3o de uma barra redonda durante o rosqueamento por corte pode produzir roscas que t\u00eam menos integridade estrutural do que uma pe\u00e7a que foi rosqueada por lamina\u00e7\u00e3o.<\/p>\n

Vantagens da rosqueamento de rolos<\/i><\/em><\/p>\n

    \n
  1. Tempos de trabalho significativamente mais curtos significam custos mais baixos.<\/li>\n
  2. Como um parafuso rosqueado tem um di\u00e2metro de corpo menor, ele pesa menos do que seu corpo inteiro. Essa redu\u00e7\u00e3o de peso reduz o custo do a\u00e7o, galvaniza\u00e7\u00e3o, tratamento t\u00e9rmico, galvanoplastia, frete e quaisquer outros custos associados ao fixador que s\u00e3o baseados no peso.<\/li>\n
  3. O trabalho a frio torna as roscas mais resistentes a danos durante o manuseio.<\/li>\n
  4. Os fios laminados geralmente s\u00e3o mais lisos devido ao efeito de polimento da opera\u00e7\u00e3o de lamina\u00e7\u00e3o.<\/li>\n<\/ol>\n

    \u00a0<\/i><\/em><\/p>\n

    Desvantagens da rosqueamento de rolo<\/i><\/em><\/p>\n

      \n
    1. A disponibilidade de barras redondas com di\u00e2metro de passo \u00e9 limitada para certos tipos de materiais.<\/li>\n<\/ol>\n

      \u00a0<\/i><\/em><\/p>\n

      \u00a0<\/i><\/em><\/p>\n

      Fios cortados<\/b><\/strong><\/h3>\n

      A rosqueamento por corte \u00e9 um processo pelo qual o a\u00e7o \u00e9 cortado, ou fisicamente removido, de uma barra redonda de a\u00e7o para formar as roscas. Um parafuso de 1\u2033 de di\u00e2metro, por exemplo, \u00e9 produzido cortando-se as roscas em um corpo completo de 1\u2033 de di\u00e2metro do parafuso.<\/p>\n

      Vantagens do corte de rosca<\/i><\/em><\/p>\n

        \n
      1. Poucas limita\u00e7\u00f5es quanto ao di\u00e2metro e comprimento da rosca.<\/li>\n
      2. Todas as especifica\u00e7\u00f5es podem ser fabricadas com roscas cortadas.<\/li>\n<\/ol>\n

         <\/p>\n

        Desvantagens do corte de rosca<\/i><\/em><\/p>\n

        Tempos de trabalho significativamente maiores significam custos mais altos.<\/p>","protected":false},"excerpt":{"rendered":"

        Threads of a mechanical fastener, regardless of whether it is a\u00a0headed bolt,\u00a0rod, or\u00a0bent bolt, can be produced by either cutting or rolling. The differences, misconceptions, advantages, and disadvantages of each method are described below. Rolled Threads Roll threading is a process by which steel is extruded to form the threaded portion of a fastener, instead [\u2026]<\/p>","protected":false},"author":1,"featured_media":335,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-807","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical"],"acf":[],"yoast_head":"\nWhat is the difference between a bolt with rolled threads and one with cut threads? - HANDAN YANLANG FASTENER CO., LTD<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ylfastener.com\/pt\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the difference between a bolt with rolled threads and one with cut threads? - HANDAN YANLANG FASTENER CO., LTD\" \/>\n<meta property=\"og:description\" content=\"Threads of a mechanical fastener, regardless of whether it is a\u00a0headed bolt,\u00a0rod, or\u00a0bent bolt, can be produced by either cutting or rolling. The differences, misconceptions, advantages, and disadvantages of each method are described below. Rolled Threads Roll threading is a process by which steel is extruded to form the threaded portion of a fastener, instead […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ylfastener.com\/pt\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\" \/>\n<meta property=\"og:site_name\" content=\"HANDAN YANLANG FASTENER CO., LTD\" \/>\n<meta property=\"article:published_time\" content=\"2025-01-06T03:24:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-01-06T03:25:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ylfastener.com\/wp-content\/uploads\/2024\/12\/20230220165201267.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"437\" \/>\n\t<meta property=\"og:image:height\" content=\"245\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.ylfastener.com\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.ylfastener.com\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/www.ylfastener.com\/#\/schema\/person\/6c326a47e95f6824b65a22ff33f53a9c\"},\"headline\":\"What is the difference between a bolt with rolled threads and one with cut threads?\",\"datePublished\":\"2025-01-06T03:24:37+00:00\",\"dateModified\":\"2025-01-06T03:25:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.ylfastener.com\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\"},\"wordCount\":502,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.ylfastener.com\/#organization\"},\"articleSection\":[\"Technical\"],\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.ylfastener.com\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.ylfastener.com\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\",\"url\":\"https:\/\/www.ylfastener.com\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\",\"name\":\"What is the difference between a bolt with rolled threads and one with cut threads? 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