Gallery, Projects and General > The Design Shop

How to cut cones for steam fitting unions.

(1/2) > >>

Bangkok Mick:
Hi,

I am making some inline water/steam pipe coupler fittings with a threaded collar and union to create the seal. I have bored out the female cone using a standard center drill to counter sink the cone shape. I now need to cut the male cone onto the matching piece.

My plan is to set the compound on the lathe at the same angle as the center drill to cut the matching cone with a normal cutting tool. Can anyone tell me what angle center drills counter sink at so I can correctly set the compound.

Alternatively is there another way to machine matching cones for this purpose and what is the best angle to machine the cones for best seal.

Cheers Mick

vtsteam:
I believe from memory it's 60 degrees -- take with a grain of salt therefore.

vtsteam:
Whatever angle you choose, you could cut your male cone and also a piece of drill rod at the same setting, and make the drill rod into a reamer by fluting. Then you'd have a very good match.

Bangkok Mick:
Thanks VT steam

vtsteam:
Check this out for dimensions of various standard fittings:

http://www.lenzinc.com/filedownload.php?filename=pdf_49d7f998771f6.pdf

Navigation

[0] Message Index

[#] Next page