Mig Mag Welding Guide For Gas Metal Arc Welding
DESCRIPTION:
INTRODUCTION1
IIFUNDAMENTALS1
PrinciplesofOperation1
Characteristics2
IIITRADITIONALMODESOFMETALTRANSFER3
AxialSprayTransfer3
GlobularTransfer3
ShortCircuitingTransfer3
IVHIGHLEVELMODESOFMETALTRANSFER4
PulsedSprayTransfer(GMAW-P)4
SurfaceTensionTransfer4
VEQUIPMENT4
SemiautomaticWeldingGunandAccessories5
WireFeedMotor6
WeldingControl6
ShieldingGasRegulators6
PowerSource6
PowerSupplyVariables9
Voltage9
Slope9
Inductance10
AutomaticWeldingEquipment11
VIPROCESSREQUIREMENTSANDAPPLICATIONS11
ShieldingGas11
InertShieldingGases,ArgonandHelium12
MixturesofArgonandHelium14
OxygenandCO2Additions14
CarbonDioxide14
ShieldingGasSelection14
Electrodes15
Composition15
Formulation15
SelectionofProcessVariables15
EquipmentSelection15
ModeofMetalTransferandShieldingGas15
DesignandServicePerformance15
ProcessControl15
Appearance15
ElectrodeSelection17
Equipment17
WeldSize17
StandardizationandInventory17
MaterialsHandlingSystem17
OperatingConditions17
DepositionRate17
WeldingCurrent—WireFeedSpeed18
WeldingVoltage18
ElectrodeStickout18
GuidelinesforOperatingConditions23
iii
VIIPROCEDURESFORCARBONSTEELS24
WeldingRecommendations24
WireFeedSpeed24
ArcVoltage24
ShieldingGasandGasMixtures24
CarbonDioxide24
Argon24
ArgonandCarbonDioxide24
Preheat&Interpass25
HorizontalFilletsorFlatButtWeldsbyShortCircuiting26
VerticalDownFilletsorSquareButtWeldsbyShortCircuiting26
VerticalUpWeldsbyShortCircuiting27
FlatandHorizontalFilletWeldsbySprayTransfer27
FlatButtWeldsbySprayTransfer28
FlatandHorizontalFilletWeldsbyPulsedSprayTransfer28
VerticalUpFilletWeldsbyPulsedSprayTransfer29
VIIIWELDINGSTAINLESSSTEEL29
SprayArcTransfer29
ShortCircuitingTransfer29
ProcedureRangeBlueMaxMIG30
FlatButtWeldsbySprayTransfer30
FlatandHorizontalFilletsandFlatButtsbySpray-ArcTransfer31
HorizontalFlatFilletsorFlatButtWeldsbyShortCircuiting32
Pulsed-ArcTransfer32
FlatandHorizontalFilletsbyShortCircuitTransfer33
VerticalUpFilletsbyShortCircuitTransfer34
FlatandHorizontalFilletsbyPulsedSprayTransfer34
IXWELDINGALUMINUM35
HorizontalFilletswith5356FillerWire35
HorizontalFilletswith4043FillerWire36
FlatButtWeldswith5356FillerWire36
FlatButtWeldswith4043FillerWire37
FlatandHorizontalFilletWeldsbyPulsedSprayTransfer37
XSAFEPRACTICES38
Introduction38
HandlingofShieldingGasCylinders&Regulators38
CylinderUse38
Gases38
Ozone38
NitrogenDioxide38
CarbonMonoxide38
MetalFumes38
RadiantEnergy39
Noise—HearingProtection39
ArcWeldingSafetyPrecautions40-42
XIPRODUCTREFERENCES
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