3D Printed Cold Plate, Heat Sink for Thermal Management: Pic of the Week
This week’s Pic features a copper alloy heat dissipation cold plate and a finned heat sink for advanced thermal management, 3D printed by Farsoon Technologies.
Source: Additive Manufacturing Media
The 3D printed heat dissipation cold plate (right) and finned heat sink (left) featured in this week Pic are intended for use within the liquid cooling industry.
Both components were 3D printed by Farsoon Technologies using the company’s Fine Laser Spot metal additive manufacturing (AM) technology. Designed for applications demanding of microscopic precision, like heat exchangers, the Fine Laser Spot solution leverages laser powder bed fusion (LPBF) technology to produce near-net-shape or end-use compact parts with little finishing requirements.
Heat Dissipation Cold Plate
The heat dissipation cold plate was 3D printed from the CuCrZr alloy in one piece, reducing leakage risks while enabling efficient heat exchange for a fully integrated component. When designing this component, Farsoon combined triply periodic minimal surface (TPMS) structures with traditional cooling designs. Its internal geometry is said to improve both its structural integrity and thermal performance.
| Material | 3D Printing Solution | Layer Thickness | Printing Accuracy | Minimal Wall Thickness of TPMS | Minimum Diameter of Cylindrical Structure |
| CuCrZr | Fine Laser Spot | 10 microns | ±0.03 mm | 0.2 mm | 0.1 mm |
Finned Heat Sink
3D printed from copper alloy using Farsoon’s FS273M metal LPBF system, the finned heat sink is designed for consistent cooling in demanding applications. While its base absorbs heat, its fins disperse the heat throughout the part, enabling quick, reliable airflow throughout its expanded surface area.
| Material | System | Process | Average Density | Part Density | Minimum Fin Thickness |
| Copper alloy | Farsoon FS273M | LPBF | 8.87 g/cm3 | > 99.5% | 0.25 mm |
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