You need a mist type cooler and a tin coated carbide 2 flute will help. You can buy a cheep mister from enco like under 40.00 good investment. I am betting the cutters are loaded with alu. The cool tool or any water based coolant will work. If you cut a lot of alu. look for a coolant that brags on aluminum cutting. I use Marcool #983 for all cutting alu to air hard steel in a hurco. If you dont go to a cutting fluid the chips stick to the cutter when it gets hot almost like gauld and then your cutter is doomed. Hope this helps. |