Welding Strength Test - Daewoo TACUMA Body Repair Manual

• Plate thickness and tip diameter
Plate thickness 0.6
Tip diamter ø4.5
3 0 m m
Stop inserting the wedge when
the full size of the nugget appears.
(Unit : mm)
0.9 1.2
ø5.0 ø5.5
Tip diameter
Fig. 3

1-3. WELDING STRENGTH TEST

Even if you perform the welding in accordance with the
1.6
conditions, the strength of the welded sections may fluc-
tuate widely with drops in the voltage and other factors.
ø6.0
The quality of the welding cannot be evaluated unless
the welded sections are destroyed.
Provide yourself with a steel plate of the same thick-
ness and conduct a destruction test.
• If holes appear in the steel plates, this means that
the welding is standard strength.
• Drive a wedge between two panels near the nug-
get. If the welded parts do not come apart and the
diameter of the nugget appears more than 3 mm,
the welding should be satisfactory.
WEDGE
Fig. 4
WELDING AND TOOLS 3–3