Making a Milling tool Arbor

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NickG:
Darren, superb work there, itlooks really good. :bow:

Darren:
Thanks Guys,

Now I know I can do this it should open a few doors.

Stew, I'll leave the taper unit setting as is and run off a couple or three as I have some tooling that could be utilised if only I had arbors for them.

Rob, judging by the standard of your work I'd be surprised if your TTA wasn't a dream to use. Having now used one I can see what the fuss is about.

The first attempt won't be wasted, I was eyeing it up tonight for another job with a slight adaption .... :dremel:

kvom:
Did you try it with the side "flutes"? With the inserts staggered like that it almost looks like a roughing mill. I'm wondering what kind of finish it would leave.

Nice work all around. :beer:

Darren:
According to the Sandvik web site this is a rapid rate metal mover ie a roughing cutter ...

Having used it the removal rate certainly seems fast. I've only tried it with cast steel so far which it coped well with. The side flutes do work well but did not leave a "finish" that we would normally accept.

Its main asset will be for general shaping and initial sizing of a larger block to something that can then be finished with another cutter.

Sandvik do make finishing cutters, just not this one. The tips leading and exit angles are wrong for that purpose from what I can gather.

I just scored 30 new tips at £24, so expect to see more of this beast with all the scrap I seem to be starting off with !!

Darren:
I needed to make some little square blocks to fit keyways on my milling spindle. The ones that stop the arbor spinning and ruining the spindle taper.

So with the new "proper" and shorter arbor I made these blocks from some cast steel.

As you can see the finish is now much finer, a normal HSS milling cutter wouldn't do better with cast steel.

So my reservations about the length of my first arbor were correct, it was indeed too long and causing some problems.

The longest edge on these blocks is 18mm to give an idea of scale. Compared to the finish on the cast iron vice I did some time ago there is little difference in the finish.
The blocks would clean up quite easily.

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