"Ian Stirling" wrote in message
...
SteveB wrote:
snip
There are some things that robotic welding has over humans. They travel
at
an exact speed. On starting a weld, they may have a pause time, or may
even
be moving before the arc is struck. When everything is right, higher
heat
can be used with less chance of burnthrough. Rule is that the better a
weldor is, the higher heat he can run on the same materials with the same
rod.

Not to mention that once programmed, in general, curve following is
as easy as doing straight welds.
Few weldors can go at the same speed on tube welds as straight.

I once went to a welding convention in Las Vegas. It was absolutely
awesome. More there than your brain could take in. One display had a cart
that was tack welded. A robotic welder was doing welding movements, but
without an arc. The positioner would twist and roll the cart so that it
would move to the next weld when the robot was done. So, you had two
movements there. One of the torch head, and the other of the positioner.
Automated welding in conjunction with CNC and CAD/CAM programs is really
impressive.

Steve