{"id":14135,"date":"2021-03-07T03:42:10","date_gmt":"2021-03-07T03:42:10","guid":{"rendered":"https:\/\/coolingsourcethermal.com\/?page_id=14135"},"modified":"2026-01-28T15:21:29","modified_gmt":"2026-01-28T22:21:29","slug":"swaged-heatsinks","status":"publish","type":"page","link":"https:\/\/coolingsourcethermal.com\/coolingsourcethermal.com\/NEW2025\/swaged-heatsinks\/","title":{"rendered":"Swaged Heatsinks"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_single_image image=&#8221;25117&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text]<\/p>\n<h1>What is a Swaged Heatsink?<\/h1>\n<p>A <strong>swaged heatsink<\/strong>\u00a0is a thermal assembly where <strong>heat pipes<\/strong>\u00a0(or solid copper pins) are <strong>mechanically expanded (swaged)<\/strong>into precisely machined holes in an aluminum or copper heatsink base. Swaging creates an <strong>interference fit<\/strong>\u00a0that delivers excellent thermal contact <strong>without soldering or adhesives<\/strong>.<\/p>\n<h2>Capabilities<\/h2>\n<ul>\n<li><strong>High heat transfer efficiency<\/strong>: Direct metal-to-metal contact between heat pipe and base minimizes thermal resistance.<\/li>\n<li><strong>High power handling<\/strong>: Commonly supports <strong>50 W to &gt;300 W<\/strong>, depending on heat pipe count, diameter, airflow, and fin design.<\/li>\n<li><strong>Material flexibility<\/strong>:\n<ul>\n<li><strong>Aluminum bases<\/strong>\u00a0for lightweight, cost-effective designs<\/li>\n<li><strong>Copper bases<\/strong>\u00a0for maximum heat spreading and performance<\/li>\n<\/ul>\n<\/li>\n<li><strong>Scalable designs<\/strong>: Works with straight or bent heat pipes, multiple pipe layouts, and various fin styles (extruded, skived, bonded).<\/li>\n<li><strong>Reliable under cycling<\/strong>: Mechanical joint tolerates vibration and thermal expansion well.<\/li>\n<\/ul>\n<h2>Benefits<\/h2>\n<h3>Thermal Performance<\/h3>\n<ul>\n<li><strong>Lower junction temperatures<\/strong>\u00a0compared to plain extruded heatsinks<\/li>\n<li><strong>Efficient heat spreading<\/strong>\u00a0from hot spots into fin stacks<\/li>\n<li>Often rivals or exceeds soldered assemblies without flux or void risks<\/li>\n<\/ul>\n<h3>Manufacturing &amp; Reliability<\/h3>\n<ul>\n<li><strong>Flux-free process<\/strong>\u00a0\u2192 cleaner, more consistent thermal interfaces<\/li>\n<li><strong>No reflow or curing steps<\/strong>, reducing process variability<\/li>\n<li><strong>High mechanical strength<\/strong>\u2014pipes are locked in place<\/li>\n<li><strong>RoHS-compliant<\/strong>\u00a0and environmentally friendly<\/li>\n<\/ul>\n<h3>Cost &amp; Weight Optimization<\/h3>\n<ul>\n<li>Aluminum + copper heat pipes = <strong>excellent performance-to-cost ratio<\/strong><\/li>\n<li>Lighter than full copper solutions while approaching similar thermal results<\/li>\n<\/ul>\n<h2>Copper vs. Aluminum Swaged Heatsinks<\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong>Feature<\/strong><\/td>\n<td><strong>Aluminum Swaged<\/strong><\/td>\n<td><strong>Copper Swaged<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Thermal Conductivity<\/td>\n<td>Good<\/td>\n<td>Excellent<\/td>\n<\/tr>\n<tr>\n<td>Weight<\/td>\n<td>Lightweight<\/td>\n<td>Heavy<\/td>\n<\/tr>\n<tr>\n<td>Cost<\/td>\n<td>Lower<\/td>\n<td>Higher<\/td>\n<\/tr>\n<tr>\n<td>Heat Spreading<\/td>\n<td>Moderate<\/td>\n<td>Superior<\/td>\n<\/tr>\n<tr>\n<td>Typical Use<\/td>\n<td>Volume electronics<\/td>\n<td>High-power, space-limited designs<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Applications<\/h2>\n<ul>\n<li><strong>CPU &amp; GPU cooling<\/strong>\u00a0(desktop, workstation, server)<\/li>\n<li><strong>Power electronics<\/strong>\u00a0(IGBTs, MOSFET modules, inverters)<\/li>\n<li><strong>Telecom &amp; networking equipment<\/strong><\/li>\n<li><strong>Industrial controls &amp; automation<\/strong><\/li>\n<li><strong>LED lighting<\/strong>\u00a0(high-lumen fixtures)<\/li>\n<li><strong>Aerospace &amp; defense electronics<\/strong><\/li>\n<li><strong>Medical imaging and diagnostic equipment<\/strong><\/li>\n<\/ul>\n<h2>When to Choose a Swaged Heatsink<\/h2>\n<p>Choose a swaged heatsink when you need:<\/p>\n<ul>\n<li>Better performance than a standard extruded heatsink<\/li>\n<li>A <strong>robust, solder-free<\/strong>\u00a0heat pipe attachment<\/li>\n<li>A balance between <strong>thermal efficiency, cost, and reliability<\/strong><\/li>\n<li>Proven performance in <strong>high-power or long-life<\/strong>\u00a0applications<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"http:\/\/coolingsourcethermal.com\/contact-us\/\">Contact us<\/a><br \/>\n<a href=\"https:\/\/csiheatsinkonlinestore.com\/\">Purchase our heatsinks<\/a>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_column_text]<a href=\"http:\/\/coolingsourcethermal.com\/wp-content\/uploads\/2021\/03\/swaged-heatsink2.jpg\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-14302 aligncenter\" src=\"http:\/\/coolingsourcethermal.com\/wp-content\/uploads\/2021\/03\/swaged-heatsink2.jpg\" alt=\"swaged heatsink\" width=\"565\" height=\"532\" \/><\/a>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_single_image image=&#8221;25117&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text] What is a Swaged Heatsink? A swaged heatsink\u00a0is a thermal assembly where heat pipes\u00a0(or solid copper pins) are mechanically expanded (swaged)into precisely machined holes in an aluminum or copper heatsink base. Swaging creates an interference fit\u00a0that delivers excellent thermal contact&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-14135","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Swaged Heatsinks | Cooling Source<\/title>\n<meta name=\"description\" content=\"Swaged Fin offer better thermal resistance than bonded fin heat sinks. 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