Miller Electric

Real Results

Home » Real Results » Manufacturing & Fabrication » Article Summaries

Article Search


Key Business Issue

Increasing Productivity



Product Solutions



Article Summary

High Speed Pulsed DC TIG Welding Increases Productivity 45%

  • Pulsed TIG on carbon and heat-treated steel boosts productivity 45%.
  • Pulsed TIG controls heat input, reduces distortion and improves weld quality.
  • Dynasty 350 slashes primary power consumption by up to 75%.

Customer Testimonial

“This new technology allows me to focus the arc, increase amperage, run faster, shrink our heat affected zone—all while maintaining excellent penetration.”
— Joey Cannon, welder, Barrett Firearms

Application

DC TIG welding of the receiver, or lower unit, for .50 caliber rifles.

Key Business Issue

  • Increasing productivity to meet worldwide demand for Barrett rifles.

Challenge

  • Increasing TIG welding speed with conventional technology also requires increasing heat input, which increases warping.

Previous System & Process

  • Old CC/DC welders and conventional TIG technology.

New Solution

  • Dynasty 350 AC/DC TIG welder with advanced controls for high-speed pulsed TIG welding (Barrett pulses at 170 pulses per second).

Results

  • 45% increase in rifle production. High speed pulsed TIG not only reduced welding time by two-and-a-half minutes per rifle receiver, it further lowered cycle time because Barrett spends less time compensating for warping.
  • 75% lower power draw. By switching to the Dynasty 350, Barrett now runs three welders off of the power it previously took to run one welder, freeing power for other fabricating equipment. When welding at an average of 120 amps, the Dynasty 350 draws just 5 or 6 amps of primary power. Further, Auto-Line enables Barrent to use any type of primary power.
  • Faster welding, lower heat input, better quality. "With the Dynasty 350, we set pulsing parameters that enabled me to run faster yet drop the temperature of each welded part by 75 degrees. With standard technology, going 'faster' meant putting more heat into the part or using less heat but sacrificing penetration."
    —Joey Cannon, welder, Barrett Firearms
  • One-week payback. "When you figure the total cost of everything, from power savings, to reduced warping to a 45 percent production increase, the Dynasty paid for itself within the first week."
    —Joey Cannon, welder, Barrett Firearms
Go to Manufacturing Notify Me - Alerts of the latest welding articles in your inbox.