Mitsubishi MOTORS Lancer Evolution VIII 2003, Technical Information Manual

Page: 319 / 368

ALUMINUM PANEL
WELDED PANEL REPLACEMENT
3-43
4. Check for distortion: Grind the surface with 80 to 120-grit
sandpaper and then check for distortion.
CAUTION
•
The surface shall be heated to approximately 250
°
C
(482
°
F) when correcting distortion.
•
Care must be taken when heating the panel because it
can melt without discoloration.
•
Cover the perimeter area with a wet rag or the like to
prevent temperature increase and distortion.
•
Do not use a draw hammer designed for steel sheets
because it may cause the panel crack.
5. Straightening: Remove distortion by the draw correction
procedure with a flattening hammer and a burner.
CAUTION
Remove any spark spot or carbon residue on the surface
by a stainless steel wire brush, because they will cause
improper painting in the following process.
6. Finishing: Finish the surface with a 100 to 120-grit disk
sander.
.
TIG welding
Welding procedure is the same as MIG welding, however, it
uses a welding rod instead of electrode wire.
Diameter of welding rod: 1.6 mm (0.063 in.)
AB202113
AB202116
AB202109
AB202108