© ESAB AB 2008
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bh32d1e
5.6 TIG welding
TIG welding melts the metal of the workpiece, using an arc struck from a tungsten
electrode, which does not itself melt. The weld pool and the electrode are protected
by shielding gas.
TIG welding is particularly useful where high quality is demanded and for welding
thin plate. Arc 151i / 201i also has good characteristics for TIG welding.
In order to TIG weld Arc 151i / 201i must be equipped with:
a TIG torch with gas valve
a welding gas cylinder (a suitable welding gas)
a welding gas regulator (suitable gas regulator)
tungsten electrode
suitable auxiliary material, if necessary.
TIG scrape start (only A31)
To scrape start lightly scrape the tungsten
electrode against the workpiece to create an
arc.
”Live TIG-start” (only A33)
With “Live TIG start” the arc strikes when the tungsten electrode is brought into
contact with the workpiece and then lifted away from it.
5.7 Remote control unit
The remote control unit is connected to the remote control socket on the power
source.
6 MAINTENANCE
Regular maintenance is important for safe, reliable operation.
Only those persons who have appropriate electrical knowledge (authorized
personnel) may remove the safety plates to connect or carry out service,
maintenance or repair work on welding equipment.
CAUTION
All guarantee undertakings from the supplier cease to apply if the customer himself
attempts any work in the product during the guarantee period in order to rectify any faults.
GB