How to fabaricate a Microchannel heatsink?

26 October 2023 1 3K Report

Dear all,

I facing difficulties to fabaricate a Microchannel heat sink(Hydraulic diameter less than 0.8mm). Kindly suggest which option is best for machining?

Material : copper

Thickness of plate : 5mm

James Garry

Multipass milling?

0.8mm is quite 'large' in the miniature milling world.

https://www.amazon.ca/Tungsten-Carbide-Titanium-Engraving-3-175mmx0-6mm/dp/B07D6ZMBS4/ref=asc_df_B07D6ZMBS4/?tag=googleshopc0c-20&linkCode=df0&hvadid=335417919740&hvpos=&hvnetw=g&hvrand=16085327101368853107&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9001529&hvtargid=pla-653451053988&psc=1

Otherwise, wire EDM might be worth a try if the channels aren't too deep.

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