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
Содержание Lancer Evolution VIII 2003
Страница 14: ...36 1 GROUP 36 PARKING BRAKE CONTENTS GENERAL INFORMATION 36 2 ...
Страница 26: ...35 1 GROUP 35 SERVICE BRAKES CONTENTS SERVICE BRAKES 35A FOUR WHEEL ANTI LOCK BRAKE SYSTEM 4ABS 35B ...
Страница 27: ...NOTES ...
Страница 34: ...34 1 GROUP 34 REAR SUSPENSION CONTENTS GENERAL DESCRIPTION 34 2 ...
Страница 37: ...NOTES ...
Страница 38: ...33A 1 GROUP 33A FRONT SUSPENSION CONTENTS GENERAL DESCRIPTION 33A 2 LOWER ARM 33A 4 STRUT ASSEMBLY 33A 5 ...
Страница 43: ...NOTES ...
Страница 57: ...NOTES ...
Страница 58: ...31 1 GROUP 31 WHEEL AND TIRE CONTENTS GENERAL INFORMATION 31 2 ...
Страница 60: ...21 1 GROUP 21 CLUTCH CONTENTS GENERAL DESCRIPTION 21 2 ...
Страница 70: ...27 1 GROUP 27 REAR AXLE CONTENTS REAR AXLE 27 2 DIFFERENTIAL 27 3 ...
Страница 74: ...54 1 GROUP 54 CHASSIS ELECTRICAL CONTENTS CHASSIS ELECTRICAL 54A SIMPLIFIED WIRING SYSTEM SWS 54B ...
Страница 75: ...NOTES ...
Страница 85: ...NOTES ...
Страница 94: ...26 1 GROUP 26 FRONT AXLE CONTENTS GENERAL DESCRIPTION 26 2 ...
Страница 114: ...11A 1 GROUP 11A ENGINE CONTENTS GENERAL SPECIFICATIONS 11A 2 BASE ENGINE 11A 3 ...
Страница 119: ...NOTES ...
Страница 126: ...13B 1 GROUP 13B FUEL SUPPLY CONTENTS GENERAL DESCRIPTION 13B 2 FUEL TANK 13B 3 ...
Страница 129: ...NOTES ...
Страница 130: ...25 1 GROUP 25 PROPELLER SHAFT CONTENTS GENERAL DESCRIPTION 25 2 ...
Страница 132: ...16 1 GROUP 16 ENGINE ELECTRICAL CONTENTS CAMSHAFT POSITION SENSOR 16 2 ...
Страница 134: ...12 1 GROUP 12 ENGINE LUBRICATION CONTENTS GENERAL DESCRIPTION 12 2 ...
Страница 142: ...32 1 GROUP 32 POWER PLANT MOUNT CONTENTS GENERAL DESCRIPTION 32 2 ...
Страница 144: ...14 1 GROUP 14 ENGINE COOLING CONTENTS GENERAL DESCRIPTION 14 2 ...
Страница 146: ...52 1 GROUP 52 INTERIOR AND SUPPLEMENTAL SYSTEM SRS CONTENTS INTERIOR 52A SUPPLEMENTAL RESTRAINT SYSTEM SRS 52B ...
Страница 147: ...NOTES ...
Страница 161: ...NOTES ...
Страница 162: ...13 1 GROUP 13 FUEL CONTENTS MULTIPORT FUEL SYSTEM MFI 13A FUEL SUPPLY 13B ...
Страница 163: ...NOTES ...
Страница 177: ...NOTES ...
Страница 178: ...22A 1 GROUP 22A MANUAL TRANSAXLE CONTENTS GENERAL DESCRIPTION 22A 2 AWD SYSTEM 22A 4 TRANSMISSION CONTROL 22A 5 ...
Страница 183: ...NOTES ...
Страница 203: ...7 1 GROUP 7 WIRING AND PIPING DIAGRAM CONTENTS PIPING DIAGRAM 7 2 ...
Страница 246: ...NOTES ...
Страница 260: ...NOTES ...
Страница 264: ...NOTES ...
Страница 265: ...5 1 GROUP 5 SYNTHETIC RESIN PARTS CONTENTS LOCATION OF SYNTHETIC RESIN PARTS 5 2 ...
Страница 268: ...NOTES ...
Страница 276: ...NOTES ...
Страница 281: ...FENDER SHIELD WELDED PANEL REPLACEMENT 3 5 AB202219 C B C D E D AB WITH THE UPPER FRAME EXTENSION OUTER REMOVED B ...
Страница 283: ...FENDER SHIELD WELDED PANEL REPLACEMENT 3 7 NOTES ...
Страница 368: ...NOTES ...