I've done that, it works at a certain point, then later the part must relax and no longer seals.
I thought it might be thermal expansion, but I don't think it is now. I think I'm relieving the stresses, and it's changing shape...but almost like it's shrinking? I would think by relieving the...
Correct.
What I can't figure out, is that if I run a group, some leak, some dont. The machine is fine, so my guess is the material is distorting from heat on the process right before it.
But with flood coolant on, I would think the part would be okay. Unless the coolant is chilling the part...
Without going into to much detail, the mating part is also a 6* taper (not teflon).
Basically everything is a ball valve, where the teflon is the rotating part to open/close water flow. I am getting leaks at the top and bottom of the taper. I've been able to elminate a leak at the bottom by...
I am trying to machine a taper on some virgin teflon.
I'm using a CG5 insert from Circle Tool, with a .007" nose radius. Talking with Circle's engineering group, this is the correct type of insert.
I'm making a 6* taper, with 1 pass with flood coolant. 1400 RPMs @ .0015 IPR
I'm getting a...
