[Paul_S]

I have programmed the machining of Magnesium, but not titanium. I have machined titanium as an operator.

Make sure your tools are sharp. Dull tools can damage the parts you are trying to machine. Such as micro surface cracks.

Lots of coolant is a must. Keep it cool (safety issue.)

Have a class D (yes 'D') fire exstingusiher at the machine, just in
case of a chip fire. Titanium burns much like Magnesium, except hotter. (the reason for this post.)

As to the cutters to use, consult your tool manufacture(s.)