Hobart 125 EZ, H-9B manual Conditions That Affect Weld Bead Shape

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8-4. 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-923 Page 29

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Contents Processes OM-923Description File Flux Cored FcawFrom Hobart to You Table of Contents Warranty Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings Principal Safety Standards EMF InformationAbout Pacemakers UNE Décharge Électrique peut entraîner la mort LES Fumées ET LES GAZ peuvent être dangereuxIndique un message de sécurité particulier Incendie ou une explosion LE Soudage peut provoquer unDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresEn ce qui concerne les stimulateurs cardiaques Principales normes de sécurité− Specifications SpecificationsDuty Cycle And Overheating Volt-Ampere Curves Installing Work Clamp − InstallationProcess/Polarity Table PolarityInstalling 4 in 102 mm Wire Spool 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 NozzleInput Power Threading Welding WireControls − OperationOperating The Gun Routine Maintenance − Maintenance &TROUBLESHOOTINGOverload Protection Drive Motor ProtectionSlide replacement wire guide into Changing Drive Roll Or Wire Inlet GuideReplacing Gun Contact Tip Cleaning Gun Liner Replacing Gun Liner End of wire at spool13/16 in 21 mm Troubleshooting Table Trouble RemedyDoes not run Circuit Diagram − Electrical DiagramTypical Fcaw Process Connections − Wire Welding GuidelinesWire Size Amperage Range Typical Control SettingsThickness to Amperage a AmperageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Poor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Porosity Troubleshooting − Excessive SpatterTroubleshooting − Excessive Penetration Possible Causes Corrective ActionsTroubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Burn-Through Troubleshooting − Distortion Troubleshooting − Waviness Of BeadTroubleshooting Guide For Semiautomatic Welding Equipment Wire does not feedMain Assembly − Parts ListDia Part Description Quantity Pkg 225209 Wire Drive AssemblyPage Service SupportAssistance Hobart Welding Products Contact your Distributor for