42 diameter aluminum bars, CNC lathes, what cutting head, how much speed?
Agree with the two floor, with their own knife is better, sharp, with high-speed steel grinding knife can be coated with some soybean oil and so on to prevent sticking knife, indexable machine plus knife, easy to stick the knife, rotate speed ibid
Alloy aluminum 1300, YT15, YT30, YW2 will do.
Turning speed 800 is good, alloy cutter headCutting is best to set the maximum speed, can not be too high, to a G96, the amount of cutting can not be too large, too large, easy to chip, with alloy knife head better. The best is to practice slowly and adjust according to the cutter head.
RPM 700-1000 rpm,You'd better use manual welding tools, that tool is sharp. If the slot is good, the chip will row out very good, with the best time in the cutting edge on put some vegetable oil, the non stick knife. No more cutting fluid.
