you are burning tools up. what type of tool is it Carbide? who makes it ? how many flutes what was the SFM? what path are you doing when burnt them up.
What was your axle cut?
there are factors and as you asked certain strategies to be used for roughing and finish. I forgot ask what is the machine. I referencing the thoughts for the 3/4 em to start.
Now I i am including a link to a video I did. I got tool info from the tool vendor based on the material and SFM and suggested FTP range. but this was of course a Dynamic path motion so I new that it would be a good constant engagement and always a climb cut.
I give the specks in the beginning of the video of what I used.