Hobart Welding Products OM-947 212 149D Conditions That Affect Weld Bead Shape, Short Normal Long

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8-5. Conditions That Affect Weld Bead Shape

NOTE

Weld bead shape depends on gun angle, direction of travel, electrode extension (stickout), travel speed, thickness of base metal, wire feed speed (weld current), and voltage.

.The Drag or Pull technique is generally recommended when welding with flux-cored tubular wire.

Push	Perpendicular	Drag or Pull
10°		10°
Electrode directed		Electrode pointed
ahead of bead		back into bead

Direction Of Welding

GUN ANGLES AND WELD BEAD PROFILES

Short	Normal	Long
	ELECTRODE EXTENSIONS (STICKOUT)

ShortNormalLong

FILLET WELD ELECTODE EXTENSIONS (STICKOUT)

Slow	Normal	Fast
	GUN TRAVEL SPEED	S-0634
		S-0634

OM-947 Page 31

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Contents File Flux Cored Fcaw ProcessesDescription From Hobart to You Table of Contents Warranty Electric Shock can kill Symbol UsageMarks a special safety message Arc Welding HazardsBuildup of GAS can injure or kill ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal can injure eyesCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures graves LE Soudage peut provoquer unIncendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peut SUREn ce qui concerne les stimulateurs cardiaques Principales normes de sécuritéDuty Cycle And Overheating − SpecificationsSpecifications Voltage − InstallationInstalling Work Clamp Volt-Ampere CurvesChanging Polarity Process/Polarity TableShielding Gas Installing Gas SupplyTools Needed 11/16, 1-1/8 Tools Needed Installing Wire Spool And Adjusting Hub TensionDo not move or operate unit where it could tip Turn off welding power source Installing Contact Tip And NozzleReinstall tip adapter, if applicable, contact tip Threading Welding Wire150 mm Pull and hold wire cut off end Be sure that wire is positionedLoad − OperationControls Operating The GunWeld Parameter Chart 210 Drive Motor Protection − Maintenance &TROUBLESHOOTINGRoutine Maintenance Overload ProtectionChanging Drive Roll Or Wire Inlet Guide Replacing Gun Contact Tip Cleaning Gun Liner Loosen liner setscrew Replacing Gun LinerHead Mm / 10 mm Tube 10 mm Does not run Troubleshooting TableTrouble Remedy Circuit Diagram − Electrical DiagramTypical MIG Process Connections − Wire Welding GuidelinesTypical Fcaw Process Connections Select Voltage Typical Control SettingsWire Size Amperage Range Thickness to Amperage aHolding And Positioning Welding Gun Slow Normal Fast Conditions That Affect Weld Bead ShapeShort Normal Long ShortNormalLongGun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Possible Causes Corrective Actions Troubleshooting − Excessive SpatterTroubleshooting − Porosity Troubleshooting − Excessive PenetrationTroubleshooting − Burn-Through Troubleshooting − Lack Of PenetrationTroubleshooting − Incomplete Fusion Wire does not feed Troubleshooting − Waviness Of BeadTroubleshooting − Distortion Troubleshooting Guide For Semiautomatic Welding EquipmentMain Assembly − Parts ListOptional Pkg 225− See Table PkgWeatherproof Nylon 195 Hub Kit For 8 in Wire Spool209 Page Page Page Assistance ServiceSupport Hobart Welding Products Contact your Distributor for