{"id":12364,"date":"2019-05-22T10:24:45","date_gmt":"2019-05-22T09:24:45","guid":{"rendered":"https:\/\/www.engineernewsnetwork.com\/blog\/?p=12364"},"modified":"2019-05-22T10:24:48","modified_gmt":"2019-05-22T09:24:48","slug":"sandvik-additive-manufacturing-has-created-the-first-ever-3d-printed-diamond-composite","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/sandvik-additive-manufacturing-has-created-the-first-ever-3d-printed-diamond-composite\/","title":{"rendered":"First 3D printed diamond composite"},"content":{"rendered":"\n

Sandvik Additive Manufacturing<\/strong><\/a> has created the first ever 3D printed diamond composite. <\/p>\n\n\n\n

While this diamond does not sparkle, it is perfect for a wide range of industrial uses. <\/p>\n\n\n\n

The new process means that this super-hard material can now be 3D printed in highly complex shapes and can thereby revolutionise the way industry uses the hardest natural material on the planet.<\/p>\n\n\n\n

The diamond composite was unveiled at the RAPID + TCT show in Detroit May 21st – 23rd, 2019, North America\u2019s leading event for Additive Manufacturing.<\/p>\n\n\n\n

Diamond is harder than anything else in nature. It is a key component in a large range of wear resistant tools in industry, from mining and drilling to machining and also medical implants. <\/p>\n\n\n\n

Since 1953 it has been possible to produce synthetic diamond, but since it\u2019s so hard and complicated to machine, it is almost impossible to form complex shapes.<\/p>\n\n\n\n

Until now, production of super hard diamond materials only has allowed for a few simple geometric configurations to be formed. <\/p>\n\n\n\n

By using additive manufacturing and a tailor-made, proprietary post-processing method, Sandvik has managed to 3D-print diamond composites which can be formed into almost any shape.<\/p>\n\n\n\n

\"\"
Diamond \u2014 the hardest material on Earth. But its strength makes it hard to machine, and impossible to form into complex shapes. So, how do you shape the hardest thing in nature? <\/figcaption><\/figure>\n\n\n\n

The difference between Sandvik\u2019s diamond and natural or synthetic diamond is that Sandvik\u2019s is a composite material. <\/p>\n\n\n\n

Most of the material is diamond, but to make it printable and dense it needs to be cemented in a very hard matrix material, keeping the most important physical properties of pure diamond.<\/p>\n\n\n\n

The opportunities are enormous<\/strong><\/p>\n\n\n\n

Due to Sandvik\u2019s use of additive manufacturing, diamond components can now be created application ready, in very complex shapes, without the need for further machining. This will open up the possibility of using it in applications that were previously considered impossible<\/p>\n\n\n\n

\u201cHistorically, 3D printing in diamond was something that none of us imagined was achievable,\u201d explained Anders Ohlsson, Delivery Manager at Sandvik Additive Manufacturing. \u201cEven now we are just starting to grasp the possibilities and applications that this breakthrough could have.<\/p>\n\n\n\n

\u201cOn seeing its potential, we began to wonder what else would be possible from 3D-printing complex shapes in a material that is three times stiffer than steel, with heat conductivity higher than copper, the thermal expansion close to Invar \u2013 and with a density close to aluminium. These benefits make us believe that you will see this diamond composite in new advanced industrial applications ranging from wear parts to space programs, in just a few years from now.\u201d <\/p>\n\n\n\n

The 3D printing process<\/strong><\/p>\n\n\n\n

\u201cThe additive manufacturing process used is highly advanced,\u201d explained Mikael Schuisky, Head of R&D and Operations at Sandvik Additive Manufacturing. \u201cWe are printing in a slurry consisting of diamond powder and polymer using a method called stereolithography, where complex parts are produced, layer by layer, using ultraviolet light.<\/p>\n\n\n\n

The step after the 3D-printing is however 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.<\/p>\n\n\n\n

\u201cThis step was extremely complicated. However, after extensive R&D efforts and several trials Anchorwe managed to take control over the process and made the first 3D printed diamond composite.\u201d<\/p>\n\n\n\n

\u201cIt was incredible to see what we can achieve when we combine Sandvik\u2019s leading expertise in materials technology with our strong capabilities in additive manufacturing and post processing,\u201d commented Mikael Schuisky. \u201cWe have some of the world\u2019s leading experts in both materials and additive manufacturing, which in a case like this can benefit many industries around the globe making it possible to use diamond in applications and shapes never conceived possible before.\u201d <\/p>\n\n\n\n

\u201cRather than looking to actually develop completely new materials, today the big push within the industry involves the often-radical restructuring of existing materials,\u201d said Annika Borgenstam, Professor at the Department of Materials Science and Engineering at Stockholm\u2019s KTH Royal Institute of Technology.<\/p>\n\n\n\n

\u201cUsing revolutionary new processes such as additive manufacturing will open up completely new ways of using the same types of materials that we have today, by building in the properties that we need.\u201d<\/p>\n\n\n\n

\u201cSandvik\u2019s 3D printed diamond composite is a true innovation. It means that we can begin to use diamond in applications and shapes never conceived possible before,\u201d said Susanne Norgren, Adjunct Professor in Applied Materials Science at Uppsala University. \u201cJust imagine what it could do to industries, when it is possible to print anything, in any shape \u2013 in diamond.\u201d<\/p>\n\n\n\n

Sustainable with superior properties<\/strong><\/p>\n\n\n\n

Another key advantage of additive manufacturing is that it allows engineers to minimize material waste, making the technology more sustainable. The diamond powder in Sandvik\u2019s process can be extracted from the polymer in the slurry after the printing, and then be recycled and reused in another print-job.<\/p>\n\n\n\n

The diamond composite has been tested and found to have extremely high hardness, exceptional heat conductivity, while also possessing low density, very good thermal expansion and fantastic corrosion resistance. <\/p>\n\n\n\n

\u201cWe now have the ability to create strong diamond composites in very complex shapes through additive manufacturing, which fundamentally will change the way industries will be able to use this material. As of now, the only limit to how this super-hard material can be shaped and used is down to the designer\u2019s imagination,\u201d Mikael Schuisky concluded.<\/p>\n\n\n\n

The process<\/strong><\/p>\n\n\n\n

Diamond is harder than anything else in nature.<\/p>\n\n\n\n

Sandvik\u2019s 3D printed diamond composite was created using the additive manufacturing process called stereolithography, where complex parts are produced, layer by layer, using ultraviolet light.<\/p>\n\n\n\n

A slurry containing diamond powder and polymer is used in the process.<\/p>\n\n\n\n

After the printing, the next step in the process is even more demanding. This is the critical step where Sandvik has developed, a tailor-made, proprietary post processing method that is able to produce the exact properties of the diamond composite.<\/p>\n\n\n\n

Excess printing slurry can be reused to reduce waste \u2013 and the diamond powder can also be extracted from the slurry and then recycled, making the method more sustainable.<\/p>\n\n\n\n

Sandvik has a patent pending for the diamond composite process.<\/p>\n","protected":false},"excerpt":{"rendered":"

Sandvik Additive Manufacturing has created the first ever 3D printed diamond composite. While this diamond does not sparkle, it is perfect for a wide range of industrial uses.  The new process means that this super-hard material can now be 3D printed in highly complex shapes and can thereby revolutionise the way industry uses the hardest …<\/p>\n","protected":false},"author":1,"featured_media":12365,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[105],"tags":[376,317,6307],"class_list":["post-12364","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-design","tag-3d-printing","tag-additive-manufacturing","tag-rapid-tct-show"],"yoast_head":"\nFirst 3D printed diamond composite - Engineer News Network<\/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.engineernewsnetwork.com\/blog\/sandvik-additive-manufacturing-has-created-the-first-ever-3d-printed-diamond-composite\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"First 3D printed diamond composite - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"Sandvik Additive Manufacturing has created the first ever 3D printed diamond composite. 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