Hobart 180 SD manual Conditions That Affect Weld Bead Shape, Electrode Movement During Welding

Page 35

9-8. 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 Small

10° - 30°

Angle Too Large

Drag

ELECTRODE ANGLE

Spatter

Too Short

Normal

Too Long

 

ARC LENGTH

 

Slow

Normal

Fast

 

TRAVEL SPEED

 

S-0061

9-9. 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 Description OM-355Processes From Hobart to You Table of Contents Page 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 eyesPrincipal Safety Standards About Pacemakers EMF InformationLES Fumé ES ET LES GAZ peuvent ê tre dangereux Signification des symbolesConsignes DE Securite Lire Avant Utilisation UN Choc É Lectrique peut tuerLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OULA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peutConsignes relatives aux stimulateurs cardiaques Principales normes de sé curitéInformation sur les champs é lectromagné tiques Movement InstallationIncluded with Your Unit Selecting a LocationDuty Cycle Chart Dimensions And WeightsSpecifications ARC Welding can cause Electromagnetic Interference Volt-Ampere CurvesWeld Output Terminals And Selecting Cable Sizes Necting to receptacle Remote 14 ReceptacleShielding Gas Connections SocketInput Amperes at Rated Output Electrical Service GuideConnecting Input Power Input VoltageControls Output Selector SwitchOperation Select weld process Select polarity Connect remote control see Section OM-355Example of Remote Amperage Control For TIG Gtaw Welding Select weld process Select polarity Select amperage ExampleApplication Typical TIG ConnectionsTypical Stick Connections Remote Foot ControlProcess and Material Thickness Guide Label Maintenance and TroubleshootingRoutine Maintenance Justing spark gaps Adjusting Spark GapsTroubleshooting Turn Off power before adCircuit Diagram For Welding Power Source Electrical DiagramHigh Frequency HF Welding Processes Using HFSources Of HF Radiation From Incorrect Installation Building Metal Building Correct InstallationGround Wire NonmetalSelecting Tungsten Electrode Safety Information About TungstenSelecting and Preparing Tungsten Electrode Preparing Tungsten For DC Electrode Negative Dcen Welding Mables away Guidelines for TIG Welding GtawPositioning The Torch Instead of thoriated. ThoTungsten With Filler Rod Torch Movement During WeldingTungsten Without Filler Rod Welding direction Form pool Tilt torchButt Weld And Stringer Bead Joint Lap Joint Corner Joint Positioning Torch Tungsten For Various Weld JointsOM-355 Stick Welding Smaw Guidelines Stick Welding ProcedureWeld current starts when electrode touches work- piece Striking an Arc Tapping Technique Electrode and Amperage Selection ChartStriking an Arc Scratch Start Technique 9090 End View of Work Angle Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Positioning Electrode HolderElectrode Movement During Welding Conditions That Affect Weld Bead Shape16 in 1.6 mm Tack Welds Butt JointsLap Joint Tee JointPossible Causes Corrective Actions Troubleshooting PorosityTroubleshooting Excessive Spatter Weld TestTroubleshooting Excessive Penetration Troubleshooting Incomplete FusionTroubleshooting Lack Of Penetration Troubleshooting Distortion Troubleshooting Burn-ThroughTroubleshooting Waviness Of Bead Main Assembly Parts ListDia Part Description Quantity Mkgs 043 Panel, Front w/Components Page Page Page Support ServiceCall Contact your Distributor forHobart Welding Products
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