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 For AC-GTAW of Aluminum aircomptessertank Alloys,... most of the significant advances focus on new ways to aircomptessertank manipulate the AC wave form. These advances largely result from using inverter-based power sources, which allow a welder to extend the balance control, aircomptessertank adjusting output frequency and independently controlling current in each AC halt cycle. New inverter-based GTAW machines aircomptessertank extend EN balance control, allowing duration from 50 to 90 percent. Making the EN portion of the cycle last longer:* aircomptessertank Allows greater weld penetration* May permit increasing travel speeds by as much as 20 percent.* Narrows the weld bead* May permit using a smaller-diameter tungsten electrode to more precisely direct the heat or deposit a narrower weld bead Duty-Cycle RatingPower-supply rating aircomptessertank depends on the type and thickness of the workpiece and the length of aircomptessertank time aircomptessertank it takes to deposit the longest weld on the thickest material. Duty cycle is the key factor to consider when selecting a power source. Once the engineer has determined the current and voltage needed to accomplish the weld, he then reviews duty cycle requirements.Duty cycle rating is the percentage of time during a 10-minute period a power supply can operate at rated output amperage without overheating. A 300 A machine at 60-percent-duty cycle can weld for six minutes at 300. A during a 10-minute period. Alter six minutes, the welder must rest the machine for the next four minutes to avoid overheating the unit. Searching for accessories for your air compressor? We offer the best selection of cheap air compressor accessories on the internet. Check out our website for great deales on all of our air compressor accessories!
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