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GMAW/pulsed GMAW inverter designed to improve light-gauge material welding
- January 15, 2008
- Product Release
- Arc Welding
Miller Electric Mfg. Co. has introduced the new Invision 350 MPa GMAW/pulsed GMAW inverter. It is designed to help solve distortion, burn-through, and spatter issues commonly associated with welding light-gauge material.
The inverter works in combination with the S-74 MPa wire feeder, so that adjustment of the wire feed speed also adjusts total power output. One-knob control frees the operator from setting multiple parameters and nearly eliminates the pulsed-GMAW learning curve for experienced GMAW operators.
The inverter provides a 5- to 425-amp output (350 amps at 60 percent duty cycle). It can operate off any input voltage from 208 to 575 V, single- or three-phase, and provide constant output even if input voltage varies by plusmn; 10 percent.
SharpArc technology alters the width of the pulsed GMAW arc cone. A lower SharpArc setting makes the arc cone wider and gives it greater wetting action, increased weld puddle fluidity, and a flatter weld bead. A higher setting narrows the arc cone, which produces a narrower, faster-freezing weld bead with less heat input.
New technology also lets operators tailor the pulsed GMAW arc length (voltage) to suit their needs. Typically, operators want a shorter arc to lower heat input, which is especially important when welding thin-gauge material.
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The Welder, formerly known as Practical Welding Today, is a showcase of the real people who make the products we use and work with every day. This magazine has served the welding community in North America well for more than 20 years.
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