Cut quality

[wilfy]

looks like you need to hurry up and sell some stuff... chewing on aluminium cant be good for your teeth..

[Web Goblin]

The chips aint too bad with a bit of warm milk!
I really do need to get them sorted out out and sold off. Had them for a while now and havent gotten round to it. Thats what I get for doing non paying jobs I suppose.

[oscar]

As others have said, looks like chip recutting.
Did you run a spring/reflex cut to finish? If not this may help tidy it up a bit, depending how deep the damage at the top is.

[Web Goblin]

Did you run a spring/reflex cut to finish?

I have never heard this term before. Is it the same as finish pass? If so then yes it had a 0.2mm finish pass at full depth cut.

[oscar]

A spring cut is when you run the cutter around the part again after your finish cut so that the cutter isn't under any load.

[oscar]

Silly question, but. What's the flute length of your cutter?

[GEOFFREY]

Have you tried climb milling on your finishing pass? G.

[Web Goblin]

Oscar the cutter flute length is 27mm.
Geoffrey I would need to check the file to see how it was milled. Does climb milling improve the surface finish much?

[oscar]

Oscar the cutter flute length is 27mm.
Geoffrey I would need to check the file to see how it was milled. Does climb milling improve the surface finish much?

That's ok then. It's not the shank rubbing.

[oscar]

Does climb milling improve the surface finish much?

I climb mill on everything, can't remember the last time I didn't. The finish is always good, if everything is set correctly. Also if the cutter does deflect its pushed away from the part, leaving metal safe (nothing a spring cut wont sort out). Rather than conventional milling where the cutter can pull into the job making it undersized.