Just FYI for future reference, if you can't get the chip weld off then just buy some caustic soda (better to go with pure than drain cleaner) and it'll dissolve the Alu but leave the carbide.

I've also had some great success with single flute aluminium end mills from aliexpress - there are some very high quality ones and they don't cost a fortune... but friendlier to high rpm and feed.

Some Alu is more gummy than others too - do you know what type you were milling?