Hi all,
Fotos arent the best, done on a fone camera.
Got this piece of tooling that I came with my mill.
As one can see from the foto one of inserts was damaged before before it came into my posession ie its chipped. Can only assume they are carbide tipped as they didnt like the water cooled slow turning grindstone I used on them.
After attacking a piece of rusty steel with my 20 mm endmill I used it to clean up the resulting swirl marks created from this process. The resulting piece is shown to the edge of the last foto.
I started off on a really low speed and wasn’t happy with the result. Progressively increased the speed over several light cuts, up till around 1200 odd rpm, which was as fast as I was game enough to run it.
Can I assume this is some kind of facemill? Is this the kind of task that its designed to do? should I run it that fast?