Hobart Champion 4500 Conditions That Affect Weld Bead Shape, Electrode Movement During Welding

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11-8. Conditions That Affect Weld Bead Shape

NOTE

Weld bead shape is affected by electrode angle, arc length, travel speed, and thickness of base metal.

 

Correct Angle

Angle Too Large

Angle Too Small

10° - 30°

Drag

ELECTRODE ANGLE

Spatter

Too Short

Normal

Too Long

 

ARC LENGTH

 

Slow

Normal

Fast

 

TRAVEL SPEED

S-0061

 

 

11-9. Electrode Movement During Welding

NOTE

Normally, a single stringer bead is satisfactory for most narrow groove weld joints; however, for wide groove weld joints or bridging across gaps, a weave bead or multiple stringer beads work better.

 

 

1

Stringer Bead – Steady

 

 

 

Movement Along Seam

1

2

2

Weave Bead – Side to Side

 

Movement Along Seam

 

 

 

 

 

3

Weave Patterns

Use weave patterns to cover a wide area in one pass of the electrode. Do not let weave width exceed 2-1/2 times diameter of electrode.

3

S-0054-A

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Contents Processes OM-4418210 597ADescription From Hobart to You Table of Contents Page Arc Welding Hazards Marks a special safety messageElectric Shock can kill Fumes and Gases can be hazardousEngine Hazards Compressed Air Hazards EMF Information Principal Safety StandardsConsignes DE Sécurité Lire Avant Utilisation Signification des symbolesUN Choc Électrique peut tuer LES Fumées ET LES GAZ peuvent être dangereuxDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un in- cendie ou une explosionDES Pièces Chaudes peuvent provoquer des brûlures graves LE Bruit peut affecter l’ouïeDES Organes Mobiles peuvent provoquer des blessures ’EXPLOSION DE LA Batterie peutLA Chaleur DU Moteur peut pro- voquer un incendie ’AIR Comprimé peut provoquer des blessuresInformation sur les champs électromagnétiques Principales normes de sécuritéSymbol Definitions SpecificationsWeld, Power, And Engine Specifications Dimensions, Weights, And Operating AnglesFuel Consumption Exceeding duty cycle can damage unit and void warrantyDuty Cycle 100% Duty Cycle at 90 Amperes CC/ACVolt-Ampere Curves Generator Power CurveInstalling Welding Generator InstallationGrounding Generator To Truck Or Trailer Frame Engine Prestart Checks Grounding Generator When Supplying Building Systems13 mm Full Gasoline Open Closed OilSelecting Weld Cable Sizes Connecting To Weld Output Terminals45 m 60 m 70 m 90 m 105 m 120 m Put terminalsControls See Section Operating the Welding GeneratorDescription Of Controls See Section To Stop turn engine switch to OffAmperage Selection Table For Stick Smaw Electrodes Operating Auxiliary Equipment Generator Power Panel ReceptaclesUse GFCI-protected extension cord 240 V 20 a AC Duplex Receptacle RC1Maintenance Clean element by gently tapping on a hard surface Servicing Air CleanerWashing Precleaner Stop engineTroubleshooting TroubleshootingGenerator Power WeldingEngine With proper viscosity oil for operating temperatureStarting difficult Circuit Diagram For Welding Generator Electrical DiagramsSelecting Equipment Generator Power GuidelinesHow Much Power Does Equipment Require? Grounding When Supplying Building SystemsEarth ground if supplying Amperes x Volts = WattsApproximate Power Requirements For Farm/Home Equipment Approximate Power Requirements For Industrial MotorsIndustrial Motors Rating Starting Watts Running Watts Farm/Home Equipment Rating Starting Watts Running WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentHow Much Power Can Generator Supply? Power Required To Start MotorSingle-Phase Induction Motor Starting Requirements KVA/HP x HP x 1000 = Starting AmperageWork like a Pro Typical Connections To Supply Standby PowerCurrent Load Watts Amperes Selecting Extension Cord Use Shortest Cord PossibleWeld current starts when electrode touches work- piece Stick Welding ProcedureStick Welding Smaw Guidelines Striking an Arc Scratch Start Technique Electrode and Amperage Selection ChartStriking an Arc Tapping Technique Good Weld Bead Characteristics Poor Weld Bead CharacteristicsPositioning Electrode Holder 10-30 9090 End View of Work AngleElectrode Movement During Welding Conditions That Affect Weld Bead ShapeLap Joint Butt JointsTee Joint 16 in 30 1.6 mm Tack WeldsTroubleshooting Excessive Spatter Troubleshooting PorosityWeld Test Possible Causes Corrective ActionsTroubleshooting Lack Of Penetration Troubleshooting Incomplete FusionTroubleshooting Excessive Penetration Troubleshooting Waviness Of Bead Troubleshooting Burn-ThroughTroubleshooting Distortion 35 36 Parts ListDia Part Description Quantity Mkgs Work like a Pro Page Page Support ServiceHobart Welding Products Contact your Distributor for
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