I have done some light machining of alli alloy using an Trend/Elu MOF96 router that is similar to the Bosch you are proposing. Provided the cut is not high enough to cause the cutter to pick up material on the leading edge all should be well. I used a little white spirit as a lubricant but one of the modern dry stick type might be a better bet. Some of the alli alloys sold in DIY outlets are a bit too soft and will cling to the tool edge to cause over heating problems. Listen to the machine and observe the free cutting by way of the constant flow of chips! Unattended CNC routing would be in another league and would require lower speeds and some fprm of continuous librication / cooling of the cutter. I used a four flute end mill with some good results for short supervised runs.
Hope this helps.