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umahunter
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I'm parting 2 inch solid aluminum with a 3/32 t style hss blade and as you can see I'm curving I have a filling I may be going to fast but thought I would see if I'm missing anything else as you can see I've got quit the curve View attachment 105681View attachment 105682View attachment 105682View attachment 105681 View attachment 105681
If the part is fully machined on the OD cutting the blanks slightly long leaves no material to hold, if you have to do back work just rough part it as the back will be a second operation anyway.First thing,parting off a 2" round perfectly flat requires sharp cutters,beefy lathe and you will need to widen the cut as you go.Why don't you saw the round a bit over size then face it to dimension.I would think this may be the practical way to go.
mike
I've seen this happen when the blade is not precisely vertical in the holder. Even if you get the blade perpendicular to the work it will steer and cut a curved path. Are you using that Shars blade with the chip groove on top? If so, be sure it is ground square across the face and is very sharp.