MAY Aluminum Welding A Short Note About Aluminum Welding In emerging technology, adjustable output frequency have been a pivotal role that has made the GAS TUNGSTEN WELDING(GTAW) it is designed and adapt only for aluminum application welding. www.everlastwelds.com.au
In emerging technology ,adjustable output frequency have been a pivotal role that hasmade the GAS TUNGSTEN WELDING(GTAW) it is designed and adapt only foraluminum application welding. Specifically after the introduction of advent of inverter on GTWA machines. Advanced and newly profiled based machines give the welders the chance and possibility to enhance the bead profile shaping and also the frequency control by the new welding machine. A broader arc cone is produced when frequency is decreasing, in turn it also widen the weld bid profile and more over removing the impurities from the surface of the metal is done very effectively.This also helps in transferring the maximum amount of energy in the work piece. A tightfocused arc cone is produced by increase in frequency. This narrow the weld bead andhelps in deeper penetration which is mostly used when welding is done on corners, filletwelds or on root passes.TIG WELDERS of AC conventional have a output fixed of 50 or 60 Hz, but there fewinverters who provides option to the welders in adjusting the welding output frequency.The operators make use of this frequency adjusting option.Referring to alternating current (AC) and GTAW means the number of electric cyclecompletes one full cycle per second which is measured in the terms of hertz. sine wave isrepresented as frequency which estimates the current flow of rising and falling as in therereverse direction.Gas tungsten arc welding (GTWA) 0r the tungsten insert gas (TIS) welding is animportant welding process. It is the most widely teamed welding process which is verydifficult to master it. New arc control and wave form option made the operators workeasier with the AC GTWA inverters for operators to bring in fashion arc characters, weldbead profile, weld puddle behavior, penetration and lastly appearance non ferrousmaterial cannot be used with direct current (dc) because on the base material only formsthe surface with DC electrode negative (DCEN) GTWA from the tungsten electrode thecurrent flow to the work surface, therefore the electrodes passed are nothing but thepositively charged argon gas ions flow to the tungsten from the work surface.With ferrous metals which is principally steel is mostly works well with DCEN. Weldingbecomes difficult when aluminum is melted at a higher temperature than the metalprovided the oxide layer that forms on non ferrous metals like aluminum he oxideproblem saved by the direct control electrode positive (DCEP) in an different waybecause the flow of current to the tungsten from the work surface, lifting away the oxideaway from the material in the arc zone.
Most of the inverter of all ranges is available, the inerter based sources gives usfrequency of AC output ranging from between 20-400 Hz and 150 Hz. AC outputfrequency between 20 to 400 Hz is provided by the millers TIG machine inverter thereare many companies who offer machines of all ranges like from 20 to 100 Hz where asothers do supply machine having frequency with 20 to 400 Hz. For aluminum welding,generally 120 to 200 Hz is the most suitable frequency.We supply following products, you can log on to our welder site • Welders • TIG welder • ARC welders • Plasma Cutter