Drive Flange Spline Removal.....with Magic!

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Joined
Sep 2, 2010
Threads
55
Messages
1,136
Location
Sarasota, Florida
So I finally ended up with a pair of drive flanges to modify for emergency use (blown front diff, CV joint, etc.
I was going to bore them out on a lathe at work but as it turned out - they are hardened, or at least case hardened, so I couldn't didn't want to use a regular tool steel lathe tool, it would be better to use carbide which I don't have that much experience with - plus it was ending up being a pretty difficult task to get them trued up in the four jaw chuck so the bore would be centered and perpendicular to the mating surface. There is not much room for error since by the time the I.D. is big enough for the drive shaft splines to clear the inside wall of the flange, the wall thickness where the dust cap presses on ends up being rather thin. So, the bore job needs to be on dead center.

So instead of the lathe method I opted to use MAGIC instead!!
Here is one before I cast my magic spell..........

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After waving my wand over the flange the magic began.......

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Slowly the splines began to rise.....

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And they continued to rise......
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Higher and higher!!!!

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Until they were finally completely FREE of the flange!!

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And here they are completely removed from the drive flange!!!!

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And there you have it!! Splines gone, gone , gone!!

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LOL, Not really magic, although I bet I had a few of you going!!
We have another machine at work.....
Who can guess the name of it........?
 
Not....
 
Not......
 
Scroll or band saw.
 
good photo positioning work, but we can still see the cut... :)
 
Wow, I never knew that was a 2-peice design. Good to know.
 
Ding Ding Ding!
Very good LandCruiserphil!
CNC wire EDM is the exact correct answer!
Yeah, I tried to hide the cut but no matter how I placed it you could still see it.... if you knew what to look for.
 
Care to explain what a CNC wire EDM is? I'm assuming we can accomplish this with a press also, for us common folks
 
EDM is more fun, but seems like a sawzall could do it as well, if you don't mind a slight nick...
 
My business is stamping, forming, and drawing with punch presses and designing and building the tooling to do so. It would not work for this application in any way, shape, or form.

A sawzall may be able to do it but it would be just plain ugly!!! Plus, like I said, they are hardened...you can barely file them.

Lathe, EDM, or CNC Mill are the only realistic options.

On a side note, I posted a thread last year testing the interest for cheap stamped out emergency hub covers which would replace the drive flanges for this purpose. My company could easily build the tooling to stamp them out but no one seemed interested so I dropped it. Oh well....
I hope I never have to use mine......at least on my truck!
 
Eh, I'll get a set and try it with a press just for giggles.
 
I assume the new ID for the driveflange is smaller than the circlip's OD?
 
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