Alternative to tabs for work holding? Double-sided tap? 0.5mm thick, long tabs?

[JAZZCNC]

Out of curiosity what kind of feeds and speeds are you using to cut aluminium and brass? And do you use single flutes and coolant? I think it would push my machine too far but I wouldn't mind the experience of having a go.

Oh so many variables that what works for me doesn't mean it will work for you. But I'll give a little idea.
Firstly I use method where I rough using 6 or 8mm 3 flute serated edge carbide roughing cutters so can push deep and hard. DOC will be anywhere between 3-8mm @ 1200-1700mm/min 15,000-20,000rpm.
Then I'll finish with polished 6mm Single flute full Depth of material.

Also I Often use Trochoidal toolpaths which cut mostly with full flute length or material depth and very fast.

In all cases I use Odourless mist or at least blown Air to remove chips and cooling.

Every machine is different so don't go by my or anyone else's settings without at least doing a few tests. Also don't be afraid to cut deep. One of the bigger mistakes in Ali or other materials is cutting too shallow and overheating the cutter. You want nice big chips that take the heat with them. If your making dust your doing it wrong.!!