Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations pierreick on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Methods for removing shavings and burrs from in between tapered thread flanks, External and Internal

Status
Not open for further replies.

65CCJ

Mechanical
Apr 11, 2018
39
I have a male tapered thread that contains brass shavings and burrs in between thread flanks. Is there a common method to clean out shavings from between the threads of the male thread and also for the same problem in the tapped hole? Mcmaster -Carr has sanding wheels for Brass and Bronze but they are thick and wouldn't get at shavings and burrs in between threads down to the end of flank and start of the root.

I know there are thinner wheels and brushes that will get in between threads. But I need one that isn't very abrasive and won't leave fibers behind. Something you could chase thread helix with until shavings are gone. In this case, there are over 1000 parts, so if there is a more efficient method to use I'd be interested to know what it is.

I would think the shop would know better than me on how to remove shavings but I have to give some direction. I don't care as long as parts are within specification.

Anyone use a particular type of wheel or brush or another process with success?



 
Replies continue below

Recommended for you

A fabric buffing wheel and rubbing/buffing compound would work. No fibers will be left behind once the sharp burrs are removed.
 
the size of the parts will make a difference. vibrating deburr tubs for small stuff, red wheels (scotch bright wheels)
 
A blast of compressed air does not remove the shavings? Like they are still attached to and dangling from the threads?

Sounds like the thread machining was done with dull or damaged tools, or without good lubricant, or all three. Sometimes there are 3 or 4 lines or small step at the point on the threads where the leading edge of the die segments stopped.

Most of our drawings carry a generic note to deburr all sharp corners on machined parts.
I'm guessing there is something specific in the appropriate ASME spec too.

A wire wheel with fine wire of steel or brass would be pretty gentle if applied gently.
I think a little work with a fine wire wheel on consumer grade brass and steel plumbing fittings dulls the thread burrs and cleans to the bottom of the threads. It probably even helps them seal, although teflon tape etc is always needed.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor