[doug_sinclair]

We have had our L32 for about 4 years. We have always had a problem with burring on the beginning of of our threads. We are using a Vardex metric insert (pitch of 2.0). The burr isn't horrible, but it's just enough to be annoying.

I've heard of a tool that is designed to remove the burrs from threads. I believe that it is a type of brush that is mounted in the live tooling post and it rotates while cleaning the threads.

Has anyone else heard of such a thing & know what it's called?

[ProProcess]

Why not "re-cut" the chamfer on the front of the part after threading?
Too, this would be for any threading situation not just L32.
You may get more results posting in a general machining or lathe area of "TheZone".
Good luck.

[glenthemann]

check your lead, and most threading will produce a burr at the beginning of the thread in my experience; its always best to chase the thread with a chamfer

[hacdlux]

look up higbee, you use a grroving tool with a threading cycle

[cbr_speedster]

To eliminate burrs we always chamfer a tad less than the minor dia. of the thread. After singlepoint thread is ran we may do a spring pass with the finish turn and then one last spring pass with the threader. That pretty much cleans up all burrs. Good luck.

[Kutz]

Doug,

Turn the O.D. or I.D. then single point thread.
Then return the chamfers of the thread to the same coordinates you orignally turned them too however kick the spindle speed up as high as possible.
You wont need a spring pass on the thread I promise.

another option would be thread milling

[SWISS20]

Im not sure this will help you in your case but feel free to give it a try, I have been putting high pressure lines on all my threading tools and not only getting TWICE the tool life but the threads are much cleaner and have much less if any burrs on them.