Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
9.2 Dent removal procedures for aluminium
panels
Note
Aluminium components must be covered when grinding and
welding steel parts. If metal swarf/dust makes contact with alu‐
minium, remove immediately to avoid contact corrosion.
WARNING
Use separate tools for steel and aluminium.
Recommendation: aluminium tool kit in workshop trolley (refer
to workshop equipment catalogue).
The dent removal techniques for aluminium components are es‐
sentially similar to those for steel components. However, due to
the different material properties there are a few points which must
be observed:
♦ The danger of over-stretching the material is greater with alu‐
minium than with steel.
♦ Sharp-edged or hard panel beating tools (e.g. steel hammer)
should not be used. Use plastic, wood or aluminium hammers
instead.
♦ Unlike the procedure for steel panels, you should begin in the
middle of the dent when removing dents on aluminium panels.
♦ If material stretching should occur, it can be eliminated by
heating and shrinking.
WARNING
Do not exceed temperatures of 150°C when performing shrink‐
ing work as this can damage the component.
Note
If a crack or rupture appears during panel beating, the part must
be renewed!
Temperature monitoring during heating
Tempering colours (colour changes) are not evident when heating
aluminium. The temperature must therefore be determined using
heat strips.
Heat strips change colour at certain temperatures.
A - Heating zone
B - Clear zone
C - Heat strip
General InformationBody Repairs, General Body Repairs - Edition 04.2018
52 9. Surface repairs
To Next Page
Loading...
