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Advantages are that Tungsten is a very good electricl conductor. Better than copper

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15y ago

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In gas tungsten-arc welding a long electrode extension is highly desirable true or false?

False, this will cause contamination of the tungsten electrode as there will be insufficient gas coverage.


What is the name of non consumable electrode?

There are no , non -consumable electrodes, there are slower consumed electrodes, as in TIG (tungsten inert gas) welding in which a Tungsten electrode is used , and in the hands of a very skilled welder , last the longest of all electrodes , but are in the end consumed.


Why must the tip of a tungsten electrode be hot in GTAW?

The tip of the tungsten electrode has to be hot in GTAW because you are trying to weld two pieces of metal together, and that takes a lot of heat.


What tungsten should you use for welding aluminium?

Typically you will use a Pure Tungsten, identified by the green band at one end of the electrode. It is less susceptible to contamination and provided good cleaning action due to the orbital shape of the ball and the conical shape it gives to the plasma stream providing a stable working arc. Using 2% thoriated tungsten works well if you are limited to tungsten resources. 2% thoriated tungsten is marked with a dark red band around one end of the electrode.


What is consumable electrodes?

That would refer to your tungsten electrode in TIG welding


Do you tig weld on dc straight or reverse polarity?

Tig is always done in straight polarity, i.e. electrode negative. reason: almost 2/3rd of the heat is generated in positive terminal of weld, in this case the base metal and the rest in the negative terminal, in this case the tungsten electrode. Also you don't want to deposit the tungsten electrode in the weld, do you?


In which process is the electrode used in welding?

Manual Metal Arc Welding(MMAW) Also GTAW (TIG) and GMAW (MIG) The MIG wire carries electric current so it is considered the electrode. TIG the Tungsten is considered an electrode.


What is a tungsten in tig welding?

Tungsten is a metal used as the electrode in Tungsten Inert Gas (TIG) welding. It has a high melting point and is non-consumable, so it does not melt during the welding process. Tungsten helps create a stable arc and allows for precise control in TIG welding.


What is heliarc welding?

Now called TIG, or more correctly Gas Tungsten Arc Welding, this process was developed to weld Aluminum. Using an alternating electrical current ( A C ) through a Tungsten Electrode to establish an arc and melt the metal, Helium was introduced to protect the weld puddle from the surrounding atmosphere. Hence the name Heliarc. Tungsten is used as an electrode as it has a very high melting temperature.


What are the variable parameters for TIG welding?

The variable parameters for gas tungsten arc welding (GTAW) include; current, arc length, electrode type, electrode size, electrode grind angle, shielding gas type, shielding gas flow rate, and travel speed.


What is colour of lithium flame?

sivery whiteA tungsten electrode can have 1.5 or 2 % lanthanum oxide. A tungsten electrode with 1.5 % will be gold, and a tungsten electrode with 2 % will be blue.


What is the material of the electrode in TIG Welding Process?

TIG welding uses tungsten electrodes. Some electrodes also contain Thorium some also contain Zirconiun some are pure Tungsten. Each has its own applications.