{"id":7986,"date":"2019-05-23T17:24:44","date_gmt":"2019-05-23T17:24:44","guid":{"rendered":"https:\/\/staging.asminternational.org\/hts-new\/results\/-\/journal_content\/56\/10192\/37343754\/NEWS\/"},"modified":"2023-02-07T04:47:58","modified_gmt":"2023-02-07T04:47:58","slug":"sandvik-3d-prints-diamond-composite-with-high-hardness-and-high-heat-conductivity","status":"publish","type":"post","link":"https:\/\/www.asminternational.org\/hts\/sandvik-3d-prints-diamond-composite-with-high-hardness-and-high-heat-conductivity\/","title":{"rendered":"Sandvik 3D prints diamond composite with high hardness and high heat conductivity"},"content":{"rendered":"<p style=\"margin-bottom:.0001pt\"><span style=\"line-height:normal\"><span style=\"font-size:12.0pt\">Sandvik Additive Manufacturing, Sweden, announces that it has developed a technology for producing a 3D-printed diamond composite part with a complex shape, extremely high hardness, and exceptional heat conductivity. The diamond composite also provides low density, very good thermal expansion, and \u201cfantastic\u201d corrosion resistance. According to Sandvik, the diamond composite is three times stiffer than steel, with heat conductivity higher than copper, thermal expansion close to Invar, and density close to aluminum.<\/span><\/span><\/p>\n<p style=\"margin-bottom:.0001pt\">&nbsp;<\/p>\n<p style=\"margin-bottom:.0001pt\"><span style=\"line-height:normal\"><span style=\"font-size:12.0pt\">The process involves additive manufacturing and a proprietary post-processing method that enables fabrication of composites that can be formed into almost any shape, even those that are highly complex. Most of the composite is diamond, but to make it printable and dense, it is cemented into a very hard matrix material (which Sandvik has not revealed), keeping the most important physical properties of pure diamond.<\/span><\/span><\/p>\n<p style=\"margin-bottom:.0001pt\">&nbsp;<\/p>\n<p style=\"margin-bottom:.0001pt\"><span style=\"line-height:normal\"><span style=\"font-size:12.0pt\">\u201cOur additive manufacturing process is highly advanced,\u201d says Mikael Schuisky, Head of R&amp;D and Operations at Sandvik Additive Manufacturing. \u201cWe are printing in a slurry consisting of diamond powder and polymer using a method called stereolithography, in which complex parts are produced, layer by layer, using ultraviolet light.<\/span><\/span><\/p>\n<p style=\"margin-bottom:.0001pt\">&nbsp;<\/p>\n<p style=\"margin-bottom:.0001pt\"><span style=\"line-height:normal\"><span style=\"font-size:12.0pt\">\u201cThe step after the 3D-printing is even more demanding. This is where Sandvik has developed a tailor-made, proprietary post processing method making it possible to achieve the exact properties of the super-hard diamond composite. This step was extremely complicated. However, after extensive R&amp;D efforts and several trials, we managed to take control of the process and made the first 3D printed diamond composite.\u201d<\/span><\/span><\/p>\n<p style=\"margin-bottom:.0001pt\">&nbsp;<\/p>\n<p style=\"margin-bottom:.0001pt\"><span style=\"line-height:normal\"><span style=\"font-size:12.0pt\"><a href=\"http:\/\/www.sandvik.com\">www.sandvik.com<\/a>&nbsp; <\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sandvik Additive Manufacturing, Sweden, announces that it has developed a technology for producing a 3D-printed diamond composite part with a complex shape, extremely high hardness, and exceptional heat conductivity.<\/p>\n","protected":false},"author":63082,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7986","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - 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