{"id":2117,"date":"2025-05-22T09:27:12","date_gmt":"2025-05-22T09:27:12","guid":{"rendered":"https:\/\/www.novaindustri.se\/?page_id=2117"},"modified":"2025-05-22T09:31:16","modified_gmt":"2025-05-22T09:31:16","slug":"frasning","status":"publish","type":"page","link":"https:\/\/www.novaindustri.se\/en\/frasning\/","title":{"rendered":"Milling"},"content":{"rendered":"
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Milling<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Vad \u00e4r fr\u00e4sning? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Fr\u00e4sning \u00e4r en verkstadsteknisk sk\u00e4rande bearbetningsmetod som anv\u00e4nds mycket frekvent inom industrin. I en fr\u00e4sprocess avverkas material fr\u00e5n ett fastsp\u00e4nt arbetsstycke med hj\u00e4lp av ett roterande sk\u00e4rverktyg (en <\/span>fr\u00e4s<\/span>) som gradvis sk\u00e4r bort sp\u00e5nor. Fr\u00e4sning kan anv\u00e4ndas f\u00f6r att tillverka detaljer i allehanda material \u2013 vanligast i metall men \u00e4ven i tr\u00e4, plast eller komposit.<\/span>\u00a0<\/span><\/p>

Metoden l\u00e4mpar sig f\u00f6r allt fr\u00e5n l\u00e4ttbearbetade aluminiumlegeringar och konstruktionsst\u00e5l till sv\u00e5rbearbetade h\u00e4rdade st\u00e5lsorter. Dessutom f\u00f6rekommer fr\u00e4sning i mjukare material vid framtagning av prototyper, gjutmodeller och fixturer. Bland de konventionella bearbetningsmetoderna r\u00e4knas fr\u00e4sning som en av de mer flexibla, eftersom man kan framst\u00e4lla mycket <\/span>komplexa former<\/span> och prismatiska detaljer med f\u00f6rh\u00e5llandevis h\u00f6g noggrannhet. <\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Steg-f\u00f6r-steg: S\u00e5 fungerar fr\u00e4sning <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"Fiktiv\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Steg 1:<\/strong> Montering av fr\u00e4sverktyg samt f<\/span>astsp\u00e4nning av arbetsstycke<\/span><\/span><\/h4>

F\u00f6rst fixeras arbetsstycket med kl\u00e4mmor, fixturer eller skruvstycke p\u00e5 ett stabilt bord. Detta s\u00e4kerst\u00e4ller att arbetsstycket ligger helt or\u00f6rligt under bearbetningen, vilket \u00e4r avg\u00f6rande f\u00f6r precisionen.<\/span> Ett roterande sk\u00e4rverktyg<\/span> monteras i maskinens spindel via en verktygsh\u00e5llare (<\/span>t.ex.<\/span> HSK eller SK-kona). Verktygets utstick justeras f\u00f6r att minimera vibrationer.<\/span><\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Steg 2:<\/strong> Inst\u00e4llning av maskinens koordinatsystem<\/span> and<\/span> val<\/span> av sk\u00e4rdata<\/span><\/span><\/h4>

Maskinens axlar (X, Y, Z) nollst\u00e4lls i f\u00f6rh\u00e5llande till arbetsstyckets nollpunkt. I CNC-styrda fr\u00e4smaskiner sker detta digitalt genom inmatning av offsetv\u00e4rden och referenspunkter.<\/span> Beroende p\u00e5 material, verktygstyp och \u00f6nskad bearbetningsstrategi st\u00e4lls olika typer av parametrar in, s\u00e5 som <\/span>sk\u00e4rjastighet<\/span> (<\/span>Vc<\/span>), <\/span>Marning<\/span> per tank (<\/span>Fz<\/span>), Sk\u00e4rdjup (<\/span>ap<\/span>) och <\/span>matningshastighet (<\/span>vf<\/span>)<\/span><\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Steg 3:<\/strong> Fr\u00e4sningen genomf\u00f6rs<\/span><\/span><\/h4>


<\/span>Fr\u00e4sningen startas med att aktiveras ett fr\u00e4sprogram (i CNC-maskiner) eller operat\u00f6ren p\u00e5b\u00f6rjar manuell k\u00f6rning. Det roterande verktyget <\/span>sk\u00e4r <\/span>in i arbetsstyckets yta och sk\u00e4r bort material i form av sp\u00e5nor. Sp\u00e5nans tjocklek styrs av matning per tand och sk\u00e4rdjup. Sk\u00e4rkrafterna genereras vid kontakt mellan egg och material, d\u00e4r verktygets vinkel och rotationsriktning avg\u00f6r sp\u00e5navg\u00e5ngens riktning och kvalitet. F\u00f6r att stabilisera processen och motverka v\u00e4rmeutveckling tillf\u00f6rs sk\u00e4rv\u00e4tska direkt i sk\u00e4rzonen, vilket f\u00f6rb\u00e4ttrar verktygets livsl\u00e4ngd och f\u00f6rhindrar <\/span>ytdefekter<\/span>.<\/span><\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Steg 4:<\/strong> Avslutande bearbetningsmoment och <\/span>ytfinish<\/span><\/span><\/h4>

Slutsteg utf\u00f6rs med l\u00e4gre sk\u00e4rdata och finare verktyg f\u00f6r att uppn\u00e5 exakta <\/span>m\u00e5ttoleranser<\/span> och \u00f6nskad ytj\u00e4mnhet<\/span>.<\/span> Den f\u00e4rdiga <\/span>detaljen<\/span> kan eventuellt beh\u00f6va <\/span><\/span>efterbearbete<\/span> beroende p\u00e5 \u00e4ndam\u00e5l<\/span><\/span>\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\"Nova<\/figure>

F\u00e4rsning med Nova Industri<\/h3>

H\u00e4r p\u00e5 Nova industri genomf\u00f6r vi fr\u00e4sning av diverse olika material. Vi tillverkar m\u00e5nga typer av ditaljer f\u00f6r allahanda industrier. \u00c4r du i behov av kvalitativ fr\u00e4sning?<\/b> D\u00e5 kan du h\u00f6ra av dig till oss! <\/p><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tContact us<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Production equipment<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Read more here!<\/a><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Maintenance & repair<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Read more here!<\/a><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Technology & construction<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Read more here!<\/a><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Manufacturing<\/a><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Read more here!<\/a><\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Fr\u00e4sning Vad \u00e4r fr\u00e4sning? Fr\u00e4sning \u00e4r en verkstadsteknisk sk\u00e4rande bearbetningsmetod som anv\u00e4nds mycket frekvent inom industrin. I en fr\u00e4sprocess avverkas […]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","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":"disabled","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":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","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-2117","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.novaindustri.se\/en\/wp-json\/wp\/v2\/pages\/2117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.novaindustri.se\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.novaindustri.se\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.novaindustri.se\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.novaindustri.se\/en\/wp-json\/wp\/v2\/comments?post=2117"}],"version-history":[{"count":0,"href":"https:\/\/www.novaindustri.se\/en\/wp-json\/wp\/v2\/pages\/2117\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.novaindustri.se\/en\/wp-json\/wp\/v2\/media?parent=2117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}