ADDITIVE MANUFACTURING
Design of a 3D-printed heat exchanger at EOS
KEEP ITCOOL W 24
hat do gaming CPUs, LEDs, chillers, heating pumps and electrical appliances
have in common? They all need heat exchangers to cool or heat the component. Traditional manufacturing has for a long time now been only making incremental advancements in terms of eff iciency, design, and functionality for heat exchangers. However, metal additive manufacturing is setting new standards through characteristics such as high surface to volume ratios paired with complexities of design previously unimagined. Very thin walls and small features
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are all 3D-printable, improving the eff iciency of heat exchangers while also reducing the overall size of these components. With this design freedom, designers and manufacturers are achieving startling results. Without the limitations of traditional
manufacturing, you can improve the surface-to-volume ratio, create conformal cooling ducts, integrate new functionality into parts and design components to fi t any space. Costs can also be reduced, not
just in terms of the volume of material used, but by producing heat exchangers as a single printed component, rather than needing to assemble it from several components.
Nathan Rawlings examines additive manufacturing innovations in thermal management
TAKING THE HEAT With EOS’ 3D-printing technology, a wide portfolio of materials with high-thermal conductivity can be processed such as copper (Cu, CuCP, CuCrZr) and aluminium (AlSi10Mg, Al5X1). Other materials such as nickel alloys (IN718, IN625, Haynes 282) are also well suited for high-temperature environments. Today, metal 3D-printing is fi nding applications in a wide range of industries producing components such as heat exchangers, housings, communication parts, drones, three-dimensional circuit boards and inductors. With EOS technology, additive manufacturing has allowed its
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