Copper skiving machine. Making heat sinks?
More: https://en.wikipedia.org/wiki/Skiving_machine
Copper skiving machine. Making heat sinks?
More: https://en.wikipedia.org/wiki/Skiving_machine
Last edited by Jon; Sep 25, 2020 at 01:51 PM.
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blkadder (Jul 9, 2019), carloski (Nov 3, 2021), HobieDave (Apr 3, 2020), kess (Mar 3, 2018), KustomsbyKent (Mar 2, 2018), mwmkravchenko (Sep 7, 2020), PJs (Mar 5, 2018), Scotsman Hosie (Feb 23, 2019), Seedtick (Mar 2, 2018), that_other_guy (Feb 24, 2019), tony_hill (Mar 25, 2024), Toolmaker51 (Sep 6, 2020)
Yes, that's the process for making expensive heat sinks. Cheaper ones from aluminum are typically extruded, but the material properties of Aluminum are not as good as copper for heat sinks.
Price a good copper heat sink, and you'll see how expensive they are.
The long thin fins promote better heat transfer and cooling. All sorts of "fun" calculations for determining the correct length and thickness of fin. I remember doing those calcs back in college.
That's another disadvantage of trying to extrude aluminum heat sinks, the fins are thicker and farther apart, decreasing the heat transfer rate.
Thanks for sharing the video, it's been explained to me how those fins were made, but I never got to see it in person. I've seen plenty of Aluminum being extruded out... some for heat sinks, some for my own design of extrusions, and some for motor housings and more. In concept, its not much different than Play-Doh extruding.
Jon (Mar 3, 2018), toolkribkeeper (Jun 25, 2022)
New plans added on 11/04: Click here for 2,561 plans for homemade tools.
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