Power Sources
A welding power supply provides an electric current for welding. A constant current (CC) machine varies output voltage to maintain a steady current, while a constant voltage (CV) machine fluctuates output current to maintain a set voltage. Shielded metal arc welding (SMAW) and gas tungsten arc welding (GTAW) use a CC source, and gas metal arc welding (GMAW) and flux-cored arc welding (FCAW) typically use CV sources, though constant current is also possible with a voltage sensing wire feeder.
Innovations Power Up the Arc
Advances increase both power and performance in arc welding, including the ability for users to cut through thicker material, as well as gain better control at the arc to improve safety and productivity.
Advances increase both power and performance in arc welding, including the ability for users to cut through thicker material, as well as gain better control at the arc to improve safety and productivity.
Walking back and forth to a vehicle to tweak an engine-driven welder/generator’s control panel takes time. Remote control devices increase productivity by putting the ability to make changes in the palm of the operator’s hand.
To stay competitive, more shops face the challenges of welding many different types of materials. To reduce setup times and help their operators produce high-quality welds, they must move beyond basic options and invest in advanced capabilities that can have a big impact on the bottom line.
When competing for time-critical jobs, saving even a few minutes with each changeover can make a significant difference and reduce operator exposure to trip and fall hazards. Investing in technology that allows welders to easily change processes with the push of a button at the weld joint can save substantial time, increase weld quality and improve operator safety.
Being nimble to meet project timelines is important to Sigma Thermal. Take a closer look at how their investments in new pipe welding equipment and technologies increased their productivity while keeping quality at the forefront.
Miller Electric’s Trailblazer and Big Blue welder/generators are available with Wireless Interface Control. The option gives operators the power to control the units remotely from the palm of their hands.
Inverter technology with pulse-width modulation (PWM) enables Amada Weld Tech’s MIB-300A and MIB-600A power sources to provide better control than standard AC welders.
Thermal Dynamics Automation’s new QuickPierce function speeds the piercing time on 400-amp cutting systems. Their cost calculator demonstrates long-range savings you can realize, thanks to improvements that extend the life of 400-amp consumables.
Welding Industry News
