{"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\/de\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/","title":{"rendered":"Was ist der Unterschied zwischen einer Schraube mit gerolltem Gewinde und einer mit geschnittenem Gewinde?"},"content":{"rendered":"

Gewinde eines mechanischen Befestigungselements, unabh\u00e4ngig davon, ob es sich um ein\u00a0Bolzen mit Kopf<\/u>,\u00a0Stange<\/u>, oder\u00a0Laden im Inneren<\/u>, kann entweder durch Schneiden oder Walzen hergestellt werden. Die Unterschiede, Missverst\u00e4ndnisse, Vorteile und Nachteile der einzelnen Methoden werden im Folgenden beschrieben.<\/p>\n

Gerollte Gewinde<\/b><\/strong><\/h3>\n

Beim Rollgewindeschneiden wird Stahl extrudiert, um den Gewindeabschnitt eines Befestigungselements zu bilden, anstatt ihn wie beim Gewindeschneiden zu entfernen. Bei diesem Verfahren wird eine Schraube aus einem Rundstab mit reduziertem Durchmesser hergestellt. Beispielsweise wird eine Schraube mit 1 Zoll Durchmesser aus einem Rundstab mit 0,912 Zoll Durchmesser hergestellt. Dieser \u201eTeildurchmesser\u201c des Materials liegt ungef\u00e4hr in der Mitte zwischen dem Au\u00dfendurchmesser (Spitzen) und dem Innendurchmesser (T\u00e4ler) des Gewindes. Die Schraube wird durch eine Reihe von Gewindeschneideisen \u201egerollt\u201c, die den Stahl verdr\u00e4ngen und das Gewinde formen. Das Endergebnis ist ein Befestigungselement mit einem vollen Gewindeabschnitt mit 1 Zoll Durchmesser, aber einem reduzierten K\u00f6rperdurchmesser (0,912). Rollgewindeschneiden ist ein \u00e4u\u00dferst effizientes Verfahren und f\u00fchrt oft zu erheblichen Kosteneinsparungen. Daher rollt Portland Bolt Gewinde, wann immer dies m\u00f6glich ist.<\/p>\n

 <\/p>\n

Technisch kann jede Spezifikation mit Ausnahme der Strukturschrauben A325 und A490 mit reduziertem K\u00f6rper und gerolltem Gewinde hergestellt werden.<\/p>\n

 <\/p>\n

Ein Bolzen mit verkleinertem K\u00f6rper ist schw\u00e4cher als ein Bolzen mit normalem K\u00f6rper.<\/p>\n

Der schw\u00e4chste Bereich eines mechanischen Befestigungselements ist der kleinere Durchmesser des Gewindes. Da die Gewindema\u00dfe eines Befestigungselements mit geschnittenem und gerolltem Gewinde identisch sind, gibt es absolut keinen Unterschied in der Festigkeit. Man k\u00f6nnte sogar argumentieren, dass die Kaltverfestigung, die w\u00e4hrend des Rollgewindeverfahrens auftritt, das Befestigungselement mit gerolltem Gewinde sogar st\u00e4rker machen kann. Dar\u00fcber hinaus unterbricht das geschnittene Gewinde die nat\u00fcrliche Kornstruktur des Rundstabs, w\u00e4hrend das Rollgewinde sie wiederherstellt. Man k\u00f6nnte wiederum argumentieren, dass das Schneiden in die Kornstruktur eines Rundstabs beim geschnittenen Gewinde Gewinde erzeugen kann, die weniger strukturelle Integrit\u00e4t aufweisen als ein Teil, das mit Rollgewinde versehen wurde.<\/p>\n

Vorteile des Rollgewindeschneidens<\/i><\/em><\/p>\n

    \n
  1. Deutlich k\u00fcrzere Arbeitszeiten bedeuten geringere Kosten.<\/li>\n
  2. Da ein Bolzen mit Rollgewinde einen kleineren K\u00f6rperdurchmesser hat, wiegt er weniger als der Bolzen mit vollem K\u00f6rper. Diese Gewichtsreduzierung verringert die Kosten f\u00fcr Stahl, Verzinkung, W\u00e4rmebehandlung, Beschichtung, Transport und alle weiteren gewichtsabh\u00e4ngigen Kosten im Zusammenhang mit dem Befestigungselement.<\/li>\n
  3. Durch Kaltverformung werden Gewinde widerstandsf\u00e4higer gegen Besch\u00e4digungen bei der Handhabung.<\/li>\n
  4. Gerollte Gewinde sind aufgrund des Poliereffekts beim Walzvorgang h\u00e4ufig glatter.<\/li>\n<\/ol>\n

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

    Nachteile des Rollgewindeschneidens<\/i><\/em><\/p>\n

      \n
    1. Die Verf\u00fcgbarkeit von Rundst\u00e4ben mit Teildurchmesser ist f\u00fcr bestimmte Materialqualit\u00e4ten begrenzt.<\/li>\n<\/ol>\n

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

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

      F\u00e4den abschneiden<\/b><\/strong><\/h3>\n

      Beim Schneiden von Gewinden wird Stahl aus einem runden Stahlstab herausgeschnitten oder physisch entfernt, um das Gewinde zu formen. Eine Schraube mit 1 Zoll Durchmesser wird beispielsweise hergestellt, indem Gewinde in den gesamten Schraubenk\u00f6rper mit 1 Zoll Durchmesser geschnitten werden.<\/p>\n

      Vorteile des Gewindeschneidens<\/i><\/em><\/p>\n

        \n
      1. Kaum Einschr\u00e4nkungen hinsichtlich Durchmesser und Gewindel\u00e4nge.<\/li>\n
      2. Alle Spezifikationen k\u00f6nnen mit geschnittenen Gewinden hergestellt werden.<\/li>\n<\/ol>\n

         <\/p>\n

        Nachteile des geschnittenen Gewindeschneidens<\/i><\/em><\/p>\n

        Deutlich l\u00e4ngere Arbeitszeiten bedeuten h\u00f6here Kosten.<\/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\/de\/what-is-the-difference-between-a-bolt-with-rolled-threads-and-one-with-cut-threads\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\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. 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