FILENAMES:

HoseDog.JPG

DESCRIPTION:

This is a picture of a trick using a hose clamp as a 
lathe dog. 

Posted by John Kasunich <JEKasunich@worldnet.att.net>. 

The following description was provided:

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This may be old hat to veteran machinists, but I'm 
passing it along just in case it helps someone else
with a tricky turning job on a fragile part.

I had to take some heavy cuts on an aluminum part
with a 1-1/4" OD x 1/8 wall and a 2" OD by 1/8 thick
flange.  I needed to turn the end opposite the flange.
The part was too big for a collet, and I was afraid
that a chuck would slip and damage the finish, since
it could only grab the narrow edge of the flange.  
I could support the part between centers with the
help of a close fitting center drilled plug at the
tailstock end.  However, I couldn't figure out how
to drive it.  I didn't have a conventional dog that
would fit.  Even if I had a dog, it would damage the
thin walled tube.  

The solution was a screw type hose clamp.  I fastened
the clamp around the flange OD, and mounted a short
stud to the lathe faceplate.  The stud drives the body
of the clamp, and I was able to finish the parts, with
no damage to the flange.  The clamp applies an even
force all the way around the part.

The picture, HOSEDOG.JPG, shows the setup on the lathe,
with two of the finished parts on the cross-slide for
comparison.

John Kasunich