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Power Mode GMAW For Sheet Metal Fabrication
A Better Way to MIG Weld Sheet Metal Power Mode, a Lincoln Electric GMAW technology, has been around since 2001. It is on all the PowerWave series machines. For instance, it is on the Invertec V350...
Modified Short Circuit MIG For Open Root Pipe
X-Ray Quality Welds, Fast For some time, the preferred method of open root pipe welding has been a cellulosic stick electrode (6010) for the root pass or a low hydrogen rod (7018) on the fill/cap...
Inverter Advantages
Arc Stability Inverter power sources have been around for decades. As reliability now equals that of the older transformer rectifier (TR) design, they are more popular than ever. One reason is...
Self Shielded Flux-Cored Wire vs. 7018
It's All About Productivity Yes, the stick process still has its place in the welding world. But for structural applications where 7018 is still ubiquitous, it’s highly inefficient. 7018 is 65%...
Wire Feeders: Voltage Sensing Wire Feeder
A voltage sensing, or “across-the arc” wire feeder is very popular and very misunderstood, so let's start from the beginning. What is a feeder? What is it? A feeder, usually in a suitcase or...
Constant Voltage for Wire Processes
Not All Constant Voltage is Equal Constant Voltage (CV) is the most common output for wire processes, but both Miller and Lincoln sometimes use the term loosely. The Miller Bobcat volt-amp curve...
Millermatic 255 and Its Arc Length Deviation
My Experience with the Millermatic 255 On a recent pulsed MIG demo with the new Millermatic 255, I noticed a strange arc length quirk. This machine, like all Miller pulsing machines, has an arc...
All Position Welding Productivity Maximized
All Position Welding Productivity with Dual Wire Feeders Dual wire feeders have never really caught fire, in part, because fabricators see the price and don't see the justification. Connected to...
Pulsed MIG: To Pulse or not to Pulse?
The Many Advantages of Pulsed MIG In the coming years, the strongest companies will prevail. Those companies will likely have a strong history of cost reduction by way of improved efficiencies and...
Electrode Diameter & Current Density
Myth Exposed: Electrode Diameter and Current Density Selecting the correct wire diameter for MIG, Submerged Arc (SAW), and Flux Cored Arc (FCAW) welding can be a challenge. That is because there are...