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This 4 axis CNC Tig
welding machine uses a CENTROID M400 CNC control equipped Bed Mill
that has been combined with a Miller Tig Welder to weld precision
Stainless steel Exhaust headers for Race Cars. Vision
Technology in Troutman NC built this machine for Pro Fabrication
Racing Exhaust Systems located in Concord, NC. Pro Fab provides
Nascar racing teams with
highly accurate exhaust parts which guarantee interchangeability
and superior quality thru CNC welding.
Automatic torch height controller keeps
the torch at the perfect height, the torch path, auto amp control
with manual override, and wire feed is controlled thru the M400.
This machine is also equipped with a 4th
axis rotary table for use on parts that are required to be rotated
for welding.
Programming the welder moves, feedrates,
wire feed and welding amps are all done with CENTROID's built-in
Intercon conversational programming software. |
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Click on any photo for a larger
view |
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The Tig
torch on this machine is equipped with automatic wire feed. The
wire feed can be programmed to turn on and off when needed anywhere
along the welding path. The CENTROID CNC control is fiber
optically isolated which allows it to reliably control a Tig welder.
This advanced CNC technology can only be found on a CENTROID control.
The Miller Tig welder is directly controlled by the CENTROID CNC.
This machine out performs others on
the market costing twice as much. With a different head, The machine can
also make use of a Mig welder for different types of parts that
use thicker material. |
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A jig has been built
to accurately locate the ring terminal (being held in the photo)
inside the piece of tubing for welding. The end of the ring comes
up thru the hole in the top of the tubing and the welder welds
in a circular fashion around the top of the ring fusing it to the
wall of the tubing perfectly every time. |
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This part
is tacked together by hand and then finished on the CNC Welder.
The seam between the two pieces of tubing is CNC welded together.
This high stress area makes it critical that the weld be as close
to perfect as possible. |
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Finished welded seam on a collector.
With complete control of welding amps,
wire feed, welding feed rate and torch height, consistent welds
can be made from part to part. Once you proof out a part by making
the necessary adjustment on the first run, the machine will consistently
weld the same seam the same way, day in and day out. Since the
control can store thousands of welding part programs, months from
now when you return to make another run of the same part you will
get the same performance results. The control remembers all the
settings for that particular job. |
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Operator
training only takes about a day. The CENTROID simplifies welding
part programming with its built in conversational programming software.
You can program parts right at the control and see color graphics
on the torch tip welding path before and during the welding process.
It is easy to make changes and adjustments as well to "tweak
in" that first part for perfect welds each time. |
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A finished
Pro Fabrication Racing Exhaust System.
Pro-Fabrication's evolutionary technique of combining
both Hand and CNC welding has provided the ability to
take a 20 ft. length of tube and turn it into an exemplary, finished
racing product. |
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