Tapping carbon fiber tubing

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Steve S
Posts: 105
Joined: Fri Oct 05, 2007 4:22 pm
Location: southcentral - PA

Tapping carbon fiber tubing

Post by Steve S » Wed Feb 26, 2020 5:13 pm

Does carbon fiber wear tooling quickly ?
I'm on the fourth hole and believe the tap is worn out ...
Tap is a M21 x 1mm brand new .
I'm using Imperial sizing die wax for a lubricant .

Steve S

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GlennW
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Location: Florida

Re: Tapping carbon fiber tubing

Post by GlennW » Wed Feb 26, 2020 5:47 pm

Steve S wrote:
Wed Feb 26, 2020 5:13 pm
Does carbon fiber wear tooling quickly ?
Yes.
Glenn

Operating machines is perfectly safe......until you forget how dangerous it really is!

jcfx
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Location: NY

Re: Tapping carbon fiber tubing

Post by jcfx » Wed Feb 26, 2020 6:51 pm

What GlennW said, I did a bit vacuum bagging carbon fiber and the best cutting tool was tungsten carbide grit
cutting wheels, but that has nothing to do with tapping.

For tapping could you use threaded inserts instead ?
They can be glued in with a structural epoxy, you would still have to drill for the inserts, .

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mcostello
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Location: Lancaster, Ohio

Re: Tapping carbon fiber tubing

Post by mcostello » Wed Feb 26, 2020 9:40 pm

Maybe You need Metric sizing die wax instead! :)

Steve S
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Joined: Fri Oct 05, 2007 4:22 pm
Location: southcentral - PA

Re: Tapping carbon fiber tubing

Post by Steve S » Thu Feb 27, 2020 4:07 pm

mcostello wrote:
Wed Feb 26, 2020 9:40 pm
Maybe You need Metric sizing die wax instead! :)

GOOD ONE ! LOL

Magicniner
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Joined: Thu May 30, 2013 4:40 am

Re: Tapping carbon fiber tubing

Post by Magicniner » Mon Mar 16, 2020 2:02 pm

Tap make?
Tap Type?
Are you tapping the bore of Carbon Fibre tube?
If so why, and have you considered the impact of that on it's structural integrity?

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SteveM
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Location: Connecticut

Re: Tapping carbon fiber tubing

Post by SteveM » Mon Mar 16, 2020 2:33 pm

mcostello wrote:
Wed Feb 26, 2020 9:40 pm
Maybe You need Metric sizing die wax instead! :)
Years ago, my brother was a mechanic.

He had so many different spray cans of stuff that a friend joked that when he had his car in for work and my brother asked him to get him the car cleaner, he said that my bother yelled "that's the imperial one, I need the metric one".

Steve

10 Wheeler Rob
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Location: East Hartford, CT

Re: Tapping carbon fiber tubing

Post by 10 Wheeler Rob » Wed Mar 18, 2020 6:01 am

Oh yes graphite dulls tool steel cutting surfaces quickly, we used diamond coated carbide tooling for machining graphite like used to make EDM electrodes where I used to work.

Rob

Steve S
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Joined: Fri Oct 05, 2007 4:22 pm
Location: southcentral - PA

Re: Tapping carbon fiber tubing

Post by Steve S » Fri Mar 27, 2020 4:52 pm

Magicniner wrote:
Mon Mar 16, 2020 2:02 pm
Tap make?
Tap Type?
Are you tapping the bore of Carbon Fibre tube?
If so why, and have you considered the impact of that on it's structural integrity?
HSS plug tap
I made a couple of carbon fiber shrouds for my pcp air rifles .
It's a modified Kral NP-03 in .177 , shoots a 9.57gr pellet at 910fps . Over 17ft/lbs energy
Attachments
Kral NP-03 SS.jpg

Magicniner
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Re: Tapping carbon fiber tubing

Post by Magicniner » Sat Mar 28, 2020 10:58 am

Steve S wrote:
Fri Mar 27, 2020 4:52 pm
HSS plug tap
I made a couple of carbon fiber shrouds for my pcp air rifles .
It's a modified Kral NP-03 in .177 , shoots a 9.57gr pellet at 910fps . Over 17ft/lbs energy
Looks great Steve!
I've been abrading the inside of CF tube and bonding in threaded inserts for barrel shrouds.

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