Magnetic Arc Oscillating Narrow Groove Welding torch0 pages
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NGT-MAG
MAGNETIC ARC OSCILLATING
NARROW GROOVE WELDING (GTAW)
The Advanced Choice for Automated Heavy Wall, Pipe,
Vessel, and Valve Welding
The NEW Magnetic Arc Oscillating Narrow Groove
Welding technology is a significant advancement in
narrow groove welding, and it builds on the mechanical
oscillating narrow groove technology that was pioneered
by AMI in the early 90's. This new Magnetic Oscillating
technology allows users to weld in narrower grooves than
ever before while achieving quality side wall fusion when
welding and repairing heavy-walled components.
Among the many advantages of Magnetic Arc Oscillating
Narrow Groove welding are:
► Higher productivity rates
► Reduced weld volume (80%+ vs. conventional grooves)
► Lower heat input
While traditional weld preps are 37.5 degree wide, Magnetic
Arc Oscillating Narrow Groove welding uses a 0.31 "to 36" (8 to
9 mm) wide groove with 2 to 5 degree sidewalls which re-
quires much less filler metal and results in higher quality welds
due to efficient heat input and shorter weld times.
AMI Magnetic Arc Oscillating Narrow Gap Torch (NGT-MAG)
The Arc Machines NGT-MAG torch (Magnetic Arc Oscillating) is The Ultimate Solution for high
quality heavy-wall pipe and vessel welding.
Benefits:
• Reduced weld volume—► shorter welding time.
• Lower heat input—► less residual stresses.
• Less consumption of filling material and shielding gas.
• Improved weldment properties.
• Lower incidence of weld metal defects.
Since its launch in 1994, AMI has supplied
over 300 NGT Systems worldwide.
www.arcmachines.com www.theglobalweldingcompany.com
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