When we build patio covers we cut the "C" channels, bracing, and heavy columns with a 10" chopsaw with a regular 60 tooth wood cutting blade that was retired from finish work.
I cleaned all the resin and buildup off it before using it on aluminum an it works great.
I can only imagine the same results in a table saw. No matter what though, wear your goggles. Those little aluminum chips really fly around and have sharp edges. They stick in my arm all the time and I just brush them off. But that wouldn't work in the eyes.
Robert