Skiving process... any details?

[RoboTech]

Hey guys,

I have been asking around the local machine shops I deal with and searching on the web for details on the skiving process used to make some heatsinks. None of the locals use it and most web references are about gears and leather.

I understand the basic concept: skiving metal is sorta like planing wood, a carbide tool with a relatively slow linear cut. As I understand it, frequently the tool is stationary and the workpiece moves. I would just like to understand the actual process being used to make heatsinks a little better.

Does anyone have experience or knowledge in this area... ???
How is skiving different than broaching?
Do they use multiple tool points, so all the fins on a heatsink get carved out at the same time?

Thanks,

[bigben2k]

I don't know much about it (I tried Googling too, with no success), but it would make sense that each fin is carved/shaved out one at a time.

[nerdwannabe]

Fins are carved out one by one by a big piece of "blade".
They will also use some fixture to straight up the fins.

[RoboTech]

Originally posted by nerdwannabe
Fins are carved out one by one by a big piece of "blade".
They will also use some fixture to straight up the fins.

So you're saying the skiving process uses a single point cutter and just cuts down one groove at a time? Any idea what depth of cut and feed rates are used?

Is the cutting tool stationary and the part moving?

Anyone have pictures of the process?!?

Thanks, I knew somebody had to have experience with skiving...

[nerdwannabe]

Unfortunatley, I never been to the factory.