Miller Electric OM-1313 manual Conditions That Affect Weld Bead Shape, Push, Perpendicular Drag

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6-4. 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.

	10°
	Push
	10°
Perpendicular	Drag

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-1313 Page 24

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Contents Arc Welding Power Source Wire Feeder Visit our website atSeptember MIG Gmaw Welding Flux Cored Fcaw WeldingFrom Miller to You Table of Contents Page Symbol Usage Marks a special safety messageArc Welding Hazards OM-1313ARC Rays can burn eyes and skin Principal Safety Standards Fire or Explosion hazardEMF Information About PacemakersSpecifications InstallationVolt-Ampere Curves Welding Power Source Duty Cycle And Overheating Exceeding duty cycle can damage unit and void warrantyWelding Gun Duty Cycle And Overheating OverheatingInstalling Work Clamp Installing Gas SupplyInstalling Welding Gun Setting Gun PolarityPolarity Changeover Label Tools Needed 11/16Installing Wire Spool And Adjusting Hub Tension Turn Off unit, and disconnect input powerReinstall wrapper Tools Needed 7/16 Changing Input VoltageElectrical Service Guide Selecting a Location And Connecting Input PowerInput Voltage Min Grounding Conductor Size In AWG/KcmilThreading Welding Wire OM-1313 Front Panel Controls OperationControls For Standard Units Weld Parameter Chart Higher e.g Volts AC Lower e.g Volts ACOM-1313 Routine Maintenance Maintenance & TroubleshootingMonths Cleaning Or Replacing Gun Liner Disconnect gun firstHead Tube Remove nozzle, contact tip, and adapter Blow out gun casing Remove linerReplacing Switch And/Or Head Tube Remove handle locking nut Slide handleReplacing Gun Contact Tip TroubleshootingSee Section Electrical Diagram Circuit DiagramWire Feeder Power Source Gun Work Clamp Workpiece MIG Welding Gmaw GuidelinesTypical MIG Process Connections Shielding Gas Regulator/ FlowmeterTypical MIG Process Control Settings Wire Recommendation Wire SpeedSelect Wire Size Select VoltageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape PushPerpendicular Drag Short Normal LongGood Weld Bead Characteristics Poor Weld Bead CharacteristicsGun Movement During Welding Troubleshooting Excessive Spatter Troubleshooting PorosityTroubleshooting Excessive Penetration Possible Causes Corrective ActionsTroubleshooting Incomplete Fusion Troubleshooting Lack Of PenetrationTroubleshooting Burn-Through Troubleshooting Distortion Troubleshooting Waviness Of BeadWeld bead Common MIG Shielding Gases Troubleshooting Guide For Semiautomatic Welding EquipmentApplication Welding arc not stable Wire slipping in drive rolls Readjust welding parametersWelding power source Drive rolls if necessaryOM-1313 Parts List Main AssemblyDia Part Mkgs Description Quantity Center Baffle w/Components Baffle, Center w/Components -1 Item M-15 Gun -1 Item Includes ItemsPage Your distributor also gives ServiceSupport Owner’s Record