{"id":1921,"date":"2025-10-20T07:35:02","date_gmt":"2025-10-20T07:35:02","guid":{"rendered":"https:\/\/www.thorahlgren.se\/?p=1921"},"modified":"2025-10-20T07:35:52","modified_gmt":"2025-10-20T07:35:52","slug":"fiber-laser","status":"publish","type":"post","link":"https:\/\/www.thorahlgren.se\/en\/fiber-laser\/","title":{"rendered":"Fiber laser\u00a0"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Fiber laser vs CO\u2082 vs plasma vs water\u00a0<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fiber laser<\/strong>\u00a0<br><strong>Strengths:<\/strong> Very energy efficient; fast in thin-medium thickness sheet metal; strong on Al\/Cu\/brass; narrow kerf.\u00a0<br><strong>Compromises:<\/strong> Edge finish in really coarse material thicknesses may require more fine trim; optics\/protective glass require strict cleanliness.\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CO\u2082 laser (our method)<\/strong>\u00a0<br><strong>Strengths:<\/strong> Robust process window; can provide smooth, \"soft\" surface in coarse black steel with O\u2082; well proven in many standard steels.\u00a0<br><strong>Compromises:<\/strong> Lower power-to-light efficiency than fiber; less advantageous on highly reflective metals.\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Plasma<\/strong>\u00a0<br><strong>Strengths:<\/strong> Cost effective in heavy plate; high throughput.\u00a0<br><strong>Compromises:<\/strong> Wider kerf, larger HAZ, rougher edge-more finishing at tight tolerances.\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Water cutting<\/strong>\u00a0<br><strong>Strengths:<\/strong> \"Cold\" process without HAZ; can handle almost all materials\/composites and very coarse thicknesses.\u00a0<br><strong>Compromises:<\/strong> Slower; high cost per meter in metal vs. laser; no heat advantage for plasticizing.\u00a0<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Materials &amp; thicknesses for fiber lasers\u00a0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Which materials work best:<\/strong>\u00a0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Black steel (S235\/S355 and others):<\/strong> Very effective. With <strong>O\u2082<\/strong> high rate is obtained via the exothermic reaction (oxide edge accepted). With <strong>N\u2082<\/strong> cleaner edge, often slightly lower speed.\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Stainless steel (e.g. 304\/316):<\/strong> Usually cut with <strong>N\u2082<\/strong> for a shiny, low-oxide edge and minimal post-processing.\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Aluminum:<\/strong> Requires good beam quality, right focus and <strong>N\u2082<\/strong> or compressed air; fiber laser handles Al well despite reflection.\u00a0<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Copper\/brass:<\/strong> High reflectivity and thermal conductivity, but fiber lasers (1.06 \u00b5m) work well with the right parameters and safety glass procedures.\u00a0<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">When fiber laser is the right option\u00a0<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Process<\/strong>&nbsp;<\/td><td><strong>Strength<\/strong>&nbsp;<\/td><td><strong>Restriction<\/strong>&nbsp;<\/td><td><strong>Edge quality<\/strong>&nbsp;<\/td><td><strong>Typical uses<\/strong>&nbsp;<\/td><\/tr><tr><td><strong>Fiber laser<\/strong>&nbsp;<\/td><td>Metals (also Al\/Cu), high efficiency, fast in thin-media&nbsp;<\/td><td>Less suitable for organic materials&nbsp;<\/td><td>Very good in metal&nbsp;<\/td><td>Sheet and tube production, series, tight tolerances&nbsp;<\/td><\/tr><tr><td>CO\u2082 laser&nbsp;<\/td><td>Non-metals, plastic\/acrylic, wood, thin metal&nbsp;<\/td><td>Less effective on reflective metals&nbsp;<\/td><td>Very good in plastic\/wood&nbsp;<\/td><td>Acrylic signs, gaskets, decor, sheet metal&nbsp;<\/td><\/tr><tr><td>Plasma&nbsp;<\/td><td>Rough sheet, lower cost per meter&nbsp;<\/td><td>Wide notch, larger HAZ&nbsp;<\/td><td>Coarse goods&nbsp;<\/td><td>Thick steel, rough cutting&nbsp;<\/td><\/tr><tr><td>Water jet&nbsp;<\/td><td>All materials, no HAZ&nbsp;<\/td><td>Slower, abrasive handling&nbsp;<\/td><td>Very good&nbsp;<\/td><td>Thick composites, heat sensitive&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Contact us for more information<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Are you planning laser cut details? At Thor Ahlgren, we deliver CO\u2082 laser cutting with high and consistent quality in metal. We do not use fiber lasers, but are happy to share our experience so you choose the right method for edge, tolerance and lead time requirements.<\/p>","protected":false},"excerpt":{"rendered":"<p>A fiber laser creates light in a diode-pumped, rare-earth-doped glass fiber (often ytterbium). The same fiber both amplifies and guides the light to the cutting head. There, the beam is focused to a very small point of high energy density. The result is a narrow cutting gap (kerf), high speed and good detail reproduction-especially in thin to medium-thick sheet metal and in reflective metals such as aluminum and copper.\u00a0<\/p>","protected":false},"author":1,"featured_media":1922,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[55],"tags":[],"class_list":["post-1921","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kunskapsbank"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fiberlaser\u00a0 - Thor Ahlgren<\/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.thorahlgren.se\/en\/fiber-laser\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fiberlaser\u00a0 - Thor Ahlgren\" \/>\n<meta property=\"og:description\" content=\"En fiberlaser skapar ljus i en diodpumpad, s\u00e4llsynta jordarts-dopad glasfiber (ofta ytterbium). Samma fiber b\u00e5de f\u00f6rst\u00e4rker och leder ljuset fram till sk\u00e4rhuvudet. D\u00e4r fokuseras str\u00e5len till en mycket liten punkt med h\u00f6g energit\u00e4thet. 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