Influence of constructive materials, geometry and other variables on heat flow and output power of an air-cooled GTAW torch
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URI: http://hdl.handle.net/10317/145Share
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Fuentes, Julio; Zschetzsche, J.Center
Escuela Técnica Superior de Ingeniería IndustrialKnowledge Area
Ingeniería EléctricaPublication date
2008-04-18Keywords
SoldaduraAbstract
Most kinds of GTAW machines that are available in market are large,
solid, expensive and with voluminous power sources. These great machines are
water-cooled GTAW machines that require input power and water connections
beside the electrical connections, making them heavier and less portable than
other welding machines.
It could be easily stated that the water-cooled machines´ disadvantages are
advantages for air-cooled GTAW. Several producers, like racecar, street or
building constructors, would prefer the features of air-cooled welder machines
because they are smaller, lighter, and easy to move, less complexity with fewer
expensive internal components and less maintenance.
However, air-cooled GTAW has a disadvantage that water-cooled GTAW do not
have, and it is that its amperage range is much shorter. That is, these machines
cannot work with high current or over long times because the torch elements
and internal electrical components tent to overheated. Mostly, all air-co ...
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