Acura TL (1995-1998) body repair. Manual — part 2
Preparation of Work
Measurement (Excluding small damage)
POINTER A
When measuring body dimensions, use a universal tram gauge.
Whenever possible, make judgements and conclusions based on measurement. Measure the wheel alignment (see page
) so as to
prevent any future trouble like unsymmetrical wear of the tires or catching of the steering wheel.
If there are any deviations, use a tram tracking gauge and measure parts of the body.
If there is any twisting to the body, measure using a frame centering gauge.
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Welding Methods/Repair Tools
Spot Welding
Spot welding is also known as resistance spot welding, and it is the most suitable method of welding for automobiles. It has three
main features: the welding can be performed instantaneously, it exercises very little effect on the mother material, and it reduces
the generation of distortion to the absolute minimum. However, please remember to remove all paint and other impurities from
the surface of the material you intend to weld for reliable results.
Welders:
Spot welder
Timer
Welding Conditions:
When performing spot welding, make absolutely sure that you conform to the conditions governed by the current, conductivity
time, welding pressure, holding time, and shutdown time recommended for the spot welder.
Please bear in mind the following points when welding:
• Plate thickness and minimum welding pitch
NOTE: When the welding intervals are too
small, this leads to branching, making it im-
possible to maintain the desired soldering
state.
• Plate thickness and tip diameter
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• Welding Strength Test
Even if you perform the welding in accordance with the conditions, the strength of the welded sections may fluctuate widely with
drops in the voltage and other factors. The quality of the welding cannot be evaluated unless the welded sections are destroyed.
Provide yourself with a steel plate of the same thickness 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 nugget. If
the welded parts do not come apart and the diameter of
the nugget is more than 3mm (0.1 in), the welding
should be satisfactory.
30 mm
(1.2in)
WEDGE
Stop inserting the wedge when
the full size of the nugget appears.
NOTE:
It is difficult to perform spot welding in the following circumstances:
• 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 appearance.
In all these cases, the gas welding method should be employed. Moreover, if it is not possible to perform spot welding because of
space restrictions, plug welding using on the arc welding method may be performed instead. For plug welding, the sections to be
welded must be close together.
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