[FabricioP10]

What’s the best method for chasing a taper thread in a box connection??

[Jim Dawson]

If you're talking about an electrical box connection, normally the are a pipe tap size. In not a pipe tap, then just find the correct tap for the hole.

[FabricioP10]

If you're talking about an electrical box connection, normally the are a pipe tap size. In not a pipe tap, then just find the correct tap for the hole.

In a cnc doosan machine...

[Jim Dawson]

In that case I have no idea. I could do it on a manual lathe with a taper attachment, but I wouldn't even attempt it on my CNC lathe.

[Jim Dawson]

After thinking about this a bit, I do maybe have an idea.

Rotate the tool so the cutter can not touch the part
Load and run the program
Set the feed override to very slow
When the tool would be engaging the thread, press feed hold
Now move the tool as needed to engage the thread and tighten.
Release the feed hold.

Not sure if this would work, but might be worth a try.

[FabricioP10]

After thinking about this a bit, I do maybe have an idea.

Rotate the tool so the cutter can not touch the part
Load and run the program
Set the feed override to very slow
When the tool would be engaging the thread, press feed hold
Now move the tool as needed to engage the thread and tighten.
Release the feed hold.

Not sure if this would work, but might be worth a try.

I chased straight threads before but haven’t done it in a while..but I’m looking for a simple good method that works good on taper threads

[asuratman]

That is common connection DP, it is 4-1/2" IF Box. Maybe the fastest way is look for data sheet on API book ?

[FabricioP10]

That is common connection DP, it is 4-1/2" IF Box. Maybe the fastest way is look for data sheet on API book ?

I’m just looking on an easier method to catch the lead on a few boxes..Why the API book?

[asuratman]

Why the API book?

That is API conn right ? You can check on API 7G.

[deadlykitten]

What’s the best method for chasing a taper thread in a box connection??

hy, please excuse me, this will sound weird : i believe that i can help you, but i don't understand what means to "chase a thread / in a box connection ?!?" ... let's google it ...no, i did not get it


you wish to re-chuck a taper thread, and run a spring pass on it ? kindly