Hobart Welding Products 125 manual Conditions That Affect Weld Bead Shape, Short Normal Long

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9-5. Conditions That Affect Weld Bead Shape

.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)

Short

Normal

Long

FILLET WELD ELECTODE EXTENSIONS (STICKOUT)

Slow

Normal

Fast

GUN TRAVEL SPEED

S-0634

OM-947 Page 33

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Contents Description ProcessesFile Flux Cored Fcaw Protect Your Investment From Hobart to YouTable of Contents 10-2 10-1Arc Welding Hazards Symbol UsageElectric Shock can kill HOT Parts can burnARC Rays can burn eyes and skin Fumes and Gases can be hazardousWelding can cause fire or explosion Flying Metal or Dirt can injure eyesFire or Explosion hazard Welding Wire can injureFalling Equipment can injure Moving Parts can injureCalifornia Proposition 65 Warnings Principal Safety StandardsEMF Information About Implanted Medical DevicesUNE Décharge Électrique peut entraîner la mort Symboles utilisésIndique des instructions spécifiques LES Fumées ET LES GAZ peuvent être dangereux LES Pièces Chaudes peuvent provoquer des brûluresLE Soudage peut provoquer un incendie ou une explosion LES Bouteilles peuvent exploser si elles sont endommagées LE Bruit peut endommager l’ouïeRisque D’INCENDIE OU LA Chute DE L’ÉQUIPEMENT peut provoquer des blessuresLes Pièces Mobiles peuvent causer des blessures Proposition californienne 65 AvertissementsLES Fils DE Soudage peuvent provoquer des blessures LE Soudage À L’ARC risque de provoquer des interférencesInformations relatives aux CEM Principales normes de sécuritéEn ce qui concerne les implants médicaux OM-947 Symbols And Definitions − SpecificationsSpecifications − DefinitionsDuty Cycle And Overheating WarrantyVolt-Ampere Curves Can damage unit or gun and voidInstalling Work Clamp − InstallationSlide insulating grips over handles Tools Needed OM-947 Changing Polarity Process/Polarity TableTools Needed 11/16, 1-1/8 Shielding Gas Installing Gas SupplyOnly applies to units equipped with Installing Wire Spool And Adjusting Hub TensionOptional hub kit Make this installation Selecting a Location And Connecting 115 Volt Input PowerSerial Number And Rating Label Location SectionTurn off welding power source Installing Contact Tip And NozzleHold wire tightly to keep it from unraveling Threading Welding WireControls − OperationOperating The Gun LoadWeld Parameter Chart Routine Maintenance − Maintenance &TROUBLESHOOTINGOverload Protection Drive Motor ProtectionRetaining Knob Opening Changing Drive Roll Or Wire Inlet GuideReplacing Gun Contact Tip Turn Off power before replacing contact tipHold wire tightly to keep it Cleaning Gun LinerThread wire according to From unraveling. SecureReplacing Gun Liner Remove black sleeving from end of replacement linerTools Needed Head Tube Mm / 10 mm Tube. Separate gun handle halves10 mm Secure power cord plug in receptacle see Section Troubleshooting TablePower source see Section Trouble RemedyCircuit Diagram − Electrical DiagramTypical Fcaw Process Connections − FCAW/GMAW Welding GuidelinesTypical Gmaw MIG Process Connections Wire Size Amperage Range Typical Control SettingsAmperage Select VoltageEnd View of Work Angle Holding And Positioning Welding GunShort Normal Long Conditions That Affect Weld Bead ShapeSlow Normal Good Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Porosity Troubleshooting − Excessive SpatterPossible Causes Corrective Actions Troubleshooting − Lack Of Penetration Troubleshooting − Excessive PenetrationTroubleshooting − Incomplete Fusion Troubleshooting − Waviness Of Bead Troubleshooting − Burn-ThroughTroubleshooting − Distortion Base metal to moveCommon Gmaw MIG Shielding Gases Troubleshooting Guide For Semiautomatic Welding EquipmentApplication FilletOpen gas valve at cylinder and adjust flow rate Gas nozzle plugged Clean or replace gas nozzleGas hose in gun and cable assembly Loose or broken wires to gas solenoidAccessories − ACCESSORIES/CONSUMABLESConsumables PkgMaterial Thickness Reference Chart Work like a Pro Support ServiceAssistance Hobart Welding Products Contact your Distributor for