Professional Profiling Swamped BBL's

[JCKelly]

Residual stresses in that cold-drawn bar stock.

Oh, well

[Steve-In]

Mine is a flat belt driven machine also and the last patent date on it is 1910.

The flat belt machines had a cadence all their own.  Every time the joint passes over a pulley it makes a noise.  I cannot imagine what the old factories with line shafts driving the machines sounded like.
The new CNC machines are much more quiet.  They do have a high pitch noise.
Some of the mills used for profiling barrels are called RISE AND FALL MILLS.  They follow a template to machine the profile.  I do not have any idea how the template was made.  These machines could be converted to CNC controls.

[WadePatton]

Maybe we should just be glad that we have multiple barrel makers , no matter what their set up is. I hate to think of the price , if there was only one maker trying to keep up with it all !!

This.

It is good to understand just a little bit about the other fellows' trade in order that we don't go around making a big fuss about production times and pricing. I used to want to do every single thing.  But at some point in time you let others help ya, and you don't mind paying them. 

Not really sure I get the idea of this post. I don`t recall complaining about prices YET!!  ...

Nathan I was agreeing with your post, and going on about enjoying the Value we are yet able to get from the guys we yet have in the supply chain. I think you got that, but missed whatever point my rambling had, maybe all did, or I failed to express clearly what I was saying and that's not unusual. It had nothing to do with any particular person or post.

[T*O*F]

Residual stresses in that cold-drawn bar stock.

Oh, well

Perhaps you missed a previous thread about Jason's barrels.  They are heat treated.

[dogcreek]

I'm sure ear plugs would be in order while running that machine! Thanks for posting.

[Charlie B]

My barrels are also heat treated. Oh well!

[Adrie luke]

This is how they can make swamped barrels in modern times.


 

[oldtravler61]

   Bob that was in the day of common sen. Don't put your fingers where they might get shortened...!   Oldtravler

[JCKelly]

Thanks for the "Oh, well" update.

I suspect that all, including one I have shot, are not stress relieved before swamping.

[Flint62Smoothie]

I noticed that there is a blatant lack of safety shields on the equipment, same as in my shop 

Some Japanese engineers & machinists were touring our then new robotics plant 'Factory of the Future', when I worked for GE Aircraft Engines (jet turbines). They noticed the big bright red 'Emergency Off' button on a work cell and asked, "What's that button for?"

When told it was the E-Stop button ... they laughed and were incredulous ... asking with many outrageous gestures, as to what the heck would a human be doing in the way of an operating robot?

[Kingsburyarms]

Working with machines like that for a while, I noticed something that surprised me - extra tools, clamps, hold down fixtures, lose items on the bed of a running mill. I would have been flogged on the spot for having lose tools anywhere near a running machine. I still have switch marks on my back from leaving a drill press key in the chuck.... Ouch.

Jon

[Pete G.]

Sorry to be a smart ass, but none of the machines shown are any ways near "modern".  Most of these machines are probably mid 20th century. 

I guess mid 20th century does seem ancient to a young guy, but some of us were born around that time. 
(I still have trouble thinking of a '57 Chevy as an antique car.)