Inner Diameter of Hole Too Large for Press Fit

Hi. When you say "100 degree punch", is that the angle of the point?? Sorry, but I am not real familiar with that.

I am going to take some pictures and some measurements later, then make another post to try to help clarify all this.

Thank you.

If the precise i.d. of the tube is not critical at the point where it presses into the plate, simply expand the tube a bit. You could make a simple drive-mandrel that will swell the tube a couple-thou, then press it in as you desire.

LLoyd

A #6 cap is the fuse activated detonator for commercial dynamite. They are about 8mm in diameter and the shock wave should expand the tube.

Thanks for the reply. I'll have to pass on that method.

This is NOT a binaries newsgroup. Do not post them here. Use your own web site or the dropbox.

Ted

Basically you drive a pin into the hole of the tube and that causes the tube to expand in diameter a bit. The pin will have a tapered end on it so that it starts into the hole without forcing. Lubrication is a necessity when doing this! If the tube is going to be permanent and is a tube just for price conserations or weight considerations, I'd just find a ball bearing (or turn a similar pin) that is large enough to force a good fit and drive that into the hole of the tubing with a press and you will have a nice tight fit.

-- Why do penguins walk so far to get to their nesting grounds?

Couldn't you just drill the hole bigger and press in a bushing sized to fit both the hole and the tube? This seems simpler than many of the other ideas.

Hi. No need to worry. I am going to post them to my own website and put links here. Sorry for any confusion.

Thanks.

Hi. It's a strong stress area, so I think that won't work. It is motorcycle steering parts. I have been too busy with work to get the pictures taken, posted to my website and links posted here. The original hole is 31mm+, the original shaft is 31mm+ (about .005" - .007" larger than the hole), and I am wanting to replace the original shaft with a different shaft that I have yet to get measured, but it is reported to be smaller in diameter than the hole by .002" or so. When switching to the different shaft, I am hoping to maintain a similar fit with the original piece. I guess it needs to be .007" - .01" smaller in ID. I still have to check it out and make sure, though.

Thanks.