Old fashioned ferrules

[Tai Goo]

Here's a tutorial on the sinking method, but it's used more for “shallow” domes. It's hard to get the "depth" for these kinds of ferrules that way and the tooling is more trouble.

http://www.followingtheironbrush.org/viewtopic.php?f=9&t=946

On the last one I just got a super tight fit on the mandrel, didn't need a vice or stop or anything. I just held the mandrel in my hand, and used a jewelers anvil. There's really no limit to depth this way. You could do oval with the same method. It's easier to bring the top over than the sides down, when you want depth.

 

[fourcornersrocks]

I was in the hardware store the other day looking at copper end caps for ferrules, lol!

After seeing this I guess they would work, kinda ghetto though!

Nice work Tai!

 

[Raymond Richard]

Here's what I came up with.

Not bad for an old hippie!

 

[deker]

As for sinking them in a die, you will need pressure pads. If you do not have the pressure pads wrinkles form, and you can only flatten the wrinkles, but never get them out.

You can see in the diagram on the right the material moving into a draw die.

Thanks for the picture Carl, that makes a good bit of sense.I could probably rig something like that up to work in the press, I'd just need to figure out tolerances and how much pressure the spring pads would need to exert, etc....Add another thing to the shop bucket list!

-d

 

[Tai Goo]

Here's a real deep one with a ring soldered to it.