{"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\/it\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/","title":{"rendered":"Qual \u00e8 la differenza tra un bullone con filettature rullate e uno con filettature tagliate?"},"content":{"rendered":"

Filettature di un elemento di fissaggio meccanico, indipendentemente dal fatto che si tratti di un\u00a0bullone con testa<\/u>,\u00a0asta<\/u>, O\u00a0fare shopping all'interno<\/u>, pu\u00f2 essere prodotto sia tagliando che laminando. Le differenze, i concetti errati, i vantaggi e gli svantaggi di ciascun metodo sono descritti di seguito.<\/p>\n

Fili arrotolati<\/b><\/strong><\/h3>\n

La filettatura a rulli \u00e8 un processo mediante il quale l'acciaio viene estruso per formare la parte filettata di un elemento di fissaggio, anzich\u00e9 essere rimosso come nella filettatura a taglio. In questo processo, un bullone viene prodotto da una barra tonda di diametro ridotto. Ad esempio, un bullone di diametro 1\u2033 viene prodotto da una barra tonda di diametro .912\u2033. Questo materiale del \"diametro del passo\" \u00e8 approssimativamente il punto medio tra il diametro maggiore (picchi) e il diametro minore (valli) delle filettature. Il bullone viene \"rullato\" attraverso una serie di filiere di filettatura che spostano l'acciaio e formano le filettature. Il risultato finale \u00e8 un elemento di fissaggio con una parte filettata di diametro completo di 1\u2033 ma un diametro del corpo ridotto (.912). La filettatura a rulli \u00e8 un processo estremamente efficiente e spesso si traduce in notevoli risparmi sui costi. Pertanto, Portland Bolt ruller\u00e0 le filettature ogni volta che \u00e8 possibile.<\/p>\n

 <\/p>\n

Tecnicamente, qualsiasi specifica, ad eccezione dei bulloni strutturali A325 e A490, pu\u00f2 essere prodotta con un corpo ridotto e filettature rullate.<\/p>\n

 <\/p>\n

Un bullone con un corpo ridotto sar\u00e0 pi\u00f9 debole di un bullone con un corpo di dimensioni normali.<\/p>\n

L'area pi\u00f9 debole di qualsiasi elemento di fissaggio meccanico \u00e8 il diametro minore delle filettature. Poich\u00e9 le dimensioni delle filettature di un elemento di fissaggio con filettatura tagliata e di un elemento di fissaggio con filettatura rullata sono identiche, non c'\u00e8 assolutamente alcuna differenza di resistenza. Si potrebbe effettivamente sostenere che l'incrudimento che si verifica durante il processo di filettatura rullata potrebbe persino rendere pi\u00f9 resistente l'elemento di fissaggio con filettature rullate. Inoltre, la filettatura tagliata interrompe la struttura naturale della grana della barra tonda, mentre la filettatura rullata la riforma. Si potrebbe ancora sostenere che il taglio nella grana di una barra tonda durante la filettatura tagliata potrebbe produrre filettature che hanno una minore integrit\u00e0 strutturale rispetto a una parte che \u00e8 stata filettata rullata.<\/p>\n

Vantaggi della filettatura a rulli<\/i><\/em><\/p>\n

    \n
  1. Tempi di manodopera notevolmente pi\u00f9 brevi si traducono in costi inferiori.<\/li>\n
  2. Poich\u00e9 un bullone filettato a rullo ha un diametro del corpo pi\u00f9 piccolo, pesa meno del suo corpo completo. Questa riduzione di peso riduce il costo dell'acciaio, della zincatura, del trattamento termico, della placcatura, del trasporto e di qualsiasi altro costo associato all'elemento di fissaggio basato sul peso.<\/li>\n
  3. La lavorazione a freddo rende i filetti pi\u00f9 resistenti ai danni durante la manipolazione.<\/li>\n
  4. Le filettature rullate risultano spesso pi\u00f9 lisce grazie all'effetto di lucidatura tipico dell'operazione di rullatura.<\/li>\n<\/ol>\n

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

    Svantaggi della filettatura a rulli<\/i><\/em><\/p>\n

      \n
    1. La disponibilit\u00e0 di barre tonde con diametro primitivo \u00e8 limitata per alcune qualit\u00e0 di materiali.<\/li>\n<\/ol>\n

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

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

      Tagliare i fili<\/b><\/strong><\/h3>\n

      La filettatura tagliata \u00e8 un processo mediante il quale l'acciaio viene tagliato via, o fisicamente rimosso, da una barra rotonda di acciaio per formare le filettature. Un bullone di 1\u2033 di diametro, ad esempio, viene prodotto tagliando le filettature in un corpo completo di 1\u2033 di diametro del bullone.<\/p>\n

      Vantaggi della filettatura tagliata<\/i><\/em><\/p>\n

        \n
      1. Poche limitazioni per quanto riguarda il diametro e la lunghezza della filettatura.<\/li>\n
      2. Tutte le specifiche possono essere realizzate con filettature tagliate.<\/li>\n<\/ol>\n

         <\/p>\n

        Svantaggi della filettatura tagliata<\/i><\/em><\/p>\n

        Tempi di manodopera notevolmente pi\u00f9 lunghi comportano costi pi\u00f9 elevati.<\/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\/it\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\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\/it\/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=\"Scritto da\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo di lettura stimato\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuti\" \/>\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\":\"it-IT\",\"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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