Aluminum does not need a metal cutting blade with a coolant wash ....unless you are running a very high speed blade at 3000 or so FPM for extended lengths of time and cutting very thick stock.
3000 fpm, like that which a wood cutting bandsaw would be running for. Again, my advice was concerned more with heat buildup and premature wear on a blade thats probably meant more for woodworking. Im not arguing that your way may be more right than mine, but that doesnt make mine more wrong or make me clueless.
Id also like to agree that in an ideal world, there wouldnt be any contact on the blade save for that on the teeth, but we dont live in an ideal world. Again, my initial suggestion was based on the theory that by using a 1/4 inch blade over one larger, say a 1/2 inch blade, you reduce the material that risks contacting the work piece and causing a heat buildup by half. You yourself also just admitted that youve used a 6tpi blade meant for woodcutting to saw aluminium, and thats hardly the proper practice, being that a woodcutting blade is only really supposed to be used to cut wood.
Im not arguing that youre wrong and my way is superior, merely stating that my way works well for me in particular, and i do apologize if im coming across that way. Ive just got issues with people automatically assuming that i dont know what im talking about because theyve tried a different way