Customized Advanced Heatsinks By 3D Printing Using Material Extrusion And Sintering Of High Thermally Conductive Metals

摘要

In this study we have focused on material design and manufacturing of customized heat spreaders and heat sinks by 3D printing, namely material extrusion of a green body and sinter the samples to high thermal conductivity.The work is split in two parts, the first investigates the printing technology and the material requirements for 3D printing of the green parts and sintering to a dense body, mainly copper and copper-based alloys. In the second part the material was characterized for the feasibility of using these manufactured parts as heat sinks and heat spreaders.The 3D printing technology of material extrusion means the printing of highly loaded metal reinforced polymers like MIM feedstock or filaments.