Importance

Loading Importance Indicators...

Abstract

Described in this document is a process for making heat transfer devices such as cold plates. The cold plates can be made by 3-D printing a polymer substrate, applying thermal spraying deposition of metal over the substrate, dissolving the substrate for removal to form an enclosed flow region through for passage of heat transfer fluid. Molten metal droplets can be sprayed onto the substrate having a surface region comprising a water-soluble thermoplastic to form metal splats on the surface region at a splat temperature and surface properties such that the metal splats penetrate and interlock to form a solid metal coating adhered to the polymer substrate. A dissolvable substrate can facilitate removal by contacting with a solvent to form the enclosed flow region defined by metallic surfaces, and also can enable complex geometries and enhanced heat transfer performance without the need for extensive machining.

Loading the Abstract Image...

First Claim