WELDING
BASE OF BODY REPAIR
9-2
WELDING
WELDING
M4090001000025
Welding is the partial joining of two or more metals
by deposition; the welding methods used for body
maintenance and repair can be classified into the fol-
lowing methods.
FUSION WELDING
Fusion welding is a method of welding in which the
weld connection is made by forming or supplying the
weld metal at the part where the weld is to be made.
PRESSURE WELDING
Pressure welding is a method of welding in which the
weld connection is made by applying external pres-
sure while the part where the weld is to be made is in
a molten or semi-molten condition.
BRAZING
Brazing is a method of welding in which the weld
connection is made by supplying a filler metal (which
is molten at a temperature lower than the melting
temperature of the base metal) at the place where
the joining is to be made without melting the base
metal itself.
ELECTRIC RESISTANCE SPOT WELDING
M4090002000017
Electric resistance spot welding is a method for fus-
ing metal parts together. Two or three metal sheets
are positioned between two copper-alloy electrode
tips, and pressure and a large current are then
applied, thus causing the contacting surfaces to heat
up and fuse together because of the electric contact
resistance.
ADVANTAGES OF ELECTRIC
RESISTANCE SPOT WELDING
•
Because the time required for welding at each
point is brief, the work can be done quickly and at
reduced cost.
•
Because both metals are fused and pressure
applied to make the weld, the strength and reli-
ability are both high.
•
Because the time required to make the welds is
short, there is little occurrence of distortion of the
panel due to heat.
.
Welding methods
Fusion methods
Shielded arc welding
Gas welding
Electric resistance spot welding
CO
2
gas arc welding
Pressure methods
[Temperature approximatery 1,500˚C (2,732˚F) or higher at weld area]
Brazing methods
Brazing
Soldering
Temperature: 620˚C - 950˚C
(1,148˚F - 1,742˚F)
Temperature: 183˚C - 310˚C
(361˚F - 590˚F)
Temperature: 1,130˚C - 1,550˚C
(2,066˚F - 2,822˚F)
AB200025AB
Summary of Contents for Lancer Evolution VIII 2003
Page 14: ...36 1 GROUP 36 PARKING BRAKE CONTENTS GENERAL INFORMATION 36 2 ...
Page 27: ...NOTES ...
Page 34: ...34 1 GROUP 34 REAR SUSPENSION CONTENTS GENERAL DESCRIPTION 34 2 ...
Page 37: ...NOTES ...
Page 43: ...NOTES ...
Page 57: ...NOTES ...
Page 58: ...31 1 GROUP 31 WHEEL AND TIRE CONTENTS GENERAL INFORMATION 31 2 ...
Page 60: ...21 1 GROUP 21 CLUTCH CONTENTS GENERAL DESCRIPTION 21 2 ...
Page 70: ...27 1 GROUP 27 REAR AXLE CONTENTS REAR AXLE 27 2 DIFFERENTIAL 27 3 ...
Page 75: ...NOTES ...
Page 85: ...NOTES ...
Page 94: ...26 1 GROUP 26 FRONT AXLE CONTENTS GENERAL DESCRIPTION 26 2 ...
Page 114: ...11A 1 GROUP 11A ENGINE CONTENTS GENERAL SPECIFICATIONS 11A 2 BASE ENGINE 11A 3 ...
Page 119: ...NOTES ...
Page 126: ...13B 1 GROUP 13B FUEL SUPPLY CONTENTS GENERAL DESCRIPTION 13B 2 FUEL TANK 13B 3 ...
Page 129: ...NOTES ...
Page 130: ...25 1 GROUP 25 PROPELLER SHAFT CONTENTS GENERAL DESCRIPTION 25 2 ...
Page 132: ...16 1 GROUP 16 ENGINE ELECTRICAL CONTENTS CAMSHAFT POSITION SENSOR 16 2 ...
Page 134: ...12 1 GROUP 12 ENGINE LUBRICATION CONTENTS GENERAL DESCRIPTION 12 2 ...
Page 142: ...32 1 GROUP 32 POWER PLANT MOUNT CONTENTS GENERAL DESCRIPTION 32 2 ...
Page 144: ...14 1 GROUP 14 ENGINE COOLING CONTENTS GENERAL DESCRIPTION 14 2 ...
Page 147: ...NOTES ...
Page 161: ...NOTES ...
Page 162: ...13 1 GROUP 13 FUEL CONTENTS MULTIPORT FUEL SYSTEM MFI 13A FUEL SUPPLY 13B ...
Page 163: ...NOTES ...
Page 177: ...NOTES ...
Page 183: ...NOTES ...
Page 203: ...7 1 GROUP 7 WIRING AND PIPING DIAGRAM CONTENTS PIPING DIAGRAM 7 2 ...
Page 246: ...NOTES ...
Page 260: ...NOTES ...
Page 264: ...NOTES ...
Page 265: ...5 1 GROUP 5 SYNTHETIC RESIN PARTS CONTENTS LOCATION OF SYNTHETIC RESIN PARTS 5 2 ...
Page 268: ...NOTES ...
Page 276: ...NOTES ...
Page 283: ...FENDER SHIELD WELDED PANEL REPLACEMENT 3 7 NOTES ...
Page 368: ...NOTES ...