3–4 WELDING AND TOOLS
NOTE:
It is difficult to perform spot welding in the following cir-
cumstances.
• When it is not possible to remove any rust or paint
attached to the welding surfaces.
• When the tip of the spot welder cannot be inserted
into the welding section.
• When the welding surfaces can be seen from the
outside and welding will impair the exterior appear-
ance.
In all these cases, it is recommended that the gas weld-
ing method be employed. However, if it is not possible
to perform spot welding because of space restrictions,
plug welding based on the arc welding method may be
performed instead. Here the welding sections must be
close together.
2. GAS WELDING
Gas welding is indispensable for body repair because
of the broad range of its applications from joining the
body panels, cutting the materials that construct the
body and applying heat to reform panels, and also be-
cause it is easy to get hold of the tools.
However, this method requires experience.
Fig. 5
WELDERS:
WELDING METHODS:
BUTT WELDING
WELDER
CUTTER
OXYGEN/ACETYLENE TANKS
GAS ADJUSTER
GAS ADJUSTER
DRILLING AND PLUG WELDINGFILLET WELDING OR SOLDERING
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