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Tungsten Inert Gas and Argon Welding
Welding for bikes is the process of joining frame tubes.
Efun’s bikes are welded using tungsten inert gas and
argon. In tungsten inert gas welding an electric arc is
established between a tungsten electrode and the part to
be welded. To start the arc an alternating current is used
to break down the oxide layer of the material. The current
is then transferred through the electrode to create an electrode
arc. The metal (in our case steel or aluminum alloy) to
be welded is melted by the intense heat of the arc and fuses
together either with or without a filler material. The arc
zone is filled with an inert gas to protect the tungsten
electrode and melted material from oxidation and to provide
a conducting path for the arc current. The shield gas used
here is argon, which is normally chosen according to the
material type to be welded.
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