Heatsink skiving machine.
Previously:
Aluminum heatsink manufacturing - GIF
Copper skiving machine - GIF
Power skiving internal gear - video
Heatsink skiving machine.
Previously:
Aluminum heatsink manufacturing - GIF
Copper skiving machine - GIF
Power skiving internal gear - video
New plans added on 11/20: Click here for 2,589 plans for homemade tools.
johncg (May 5, 2021), KustomsbyKent (May 4, 2021), marksbug (May 12, 2021), mwmkravchenko (May 4, 2021), Sleykin (May 5, 2021)
Ralphxyz (May 8, 2021)
I don't think it's starting to cut from the far end of the part. It looks like it is placed on the surface and digs in to start.
The block then could be however long they need.
It also looks like the fin length is shorter than the cut distance, material compaction making it shorter?
The lifting of the fin to straight seems like a good place to crack off a fin and scrap the part.
Obviously it works, wonder what material it is. Gotta be ductile and somewhat soft to cut like that.
Ralphxyz (May 8, 2021)
The skiving blade cuts downward as it moves toward the completed fins. So, the fins stay the same length because you are raising the same length of metal on that declined plane. Look closely, and you can see the angle on the side of the blank. Once they are done with the process, there's always a sort of triangular (from the side) piece of waste material that's cut off the end of the heat sink. To save on wasted material, the manufacturer may use long blanks and make multiple sinks by sawing apart the skived parts.
Moldyjim (May 12, 2021)
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