Miller Electric 172 M-10 Gun manual Troubleshooting Waviness Of Bead, Troubleshooting Distortion

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7-14. Troubleshooting – Waviness Of Bead

Waviness Of Bead – weld metal that is not parallel and does not cover joint formed by base metal.

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Possible Causes

Corrective Actions

Welding wire extends too far out of nozzle.

Be sure welding wire extends not more than 1/2 in (13 mm) beyond nozzle.

Unsteady hand.

Support hand on solid surface or use two hands.

7-15. Troubleshooting – Distortion

Distortion – contraction of weld metal during welding that forces base metal to move.

Base metal moves in the direction of

the weld bead.

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Possible Causes

Corrective Actions

Excessive heat input.

Use restraint (clamp) to hold base metal in position.

Make tack welds along joint before starting welding operation.

Select lower voltage range and/or reduce wire feed speed.

Increase travel speed.

Weld in small segments and allow cooling between welds.

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Contents Description OM-1318187923FProcesses From Miller 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 Volt-Ampere Curves SpecificationsSpecifications Definition Welding Power Source Duty Cycle And OverheatingWelding Gun Duty Cycle And Overheating OverheatingInstalling Welding Gun And Changing Polarity InstallationInstalling Work Clamp Flow Adjust Installing Gas Supply18 in 457 mm of space for airflow Electrical Service GuideSelecting a Location And Connecting Input Power Do not move or operate unit Where it could tipTools Needed 15/16 Installing Wire Spool And Adjusting Hub TensionStandard Wire Spool Standard Wire Reel Reinstall contact tip, and nozzle Assembly, and let go of wire14 ga 16 ga 18 ga 20 ga 22 ga Weld ParameterControls Wire Speed ControlVoltage Switch OperationShort Circuit Shutdown Maintenance &TROUBLESHOOTINGRoutine Maintenance Drive Motor Fuse F1Turn Off power before replacing contact tip Cleaning Or Repairing Drive AssemblyTurn Off power before cleaning or repairing drive assembly Wire Spool NozzleTo Reassemble Gun Cleaning Or Replacing Gun LinerDisconnect gun from unit Blow out gun casing Tools Needed Remove linerRemove handle locking nut Slide handle Replacing Switch And/Or Head TubeDisconnect gun first Motor continues to run Section Troubleshooting TableSecure power cord plug in receptacle see Section Trouble RemedyOM-1316 Electrical DiagramGun Workpiece Work Clamp Regulator Flowmeter Wire Feeder Power Source Shielding GasMIG Welding Gmaw Guidelines Typical MIG Process ConnectionsBased on 1/8 in material thickness Ipm = inch per minute Typical MIG Process Control SettingsWire Recommendation Wire Speed Select Wire SizeHolding And Positioning Welding Gun ShortNormalLong Conditions That Affect Weld Bead ShapePush PerpendicularDrag Short Normal LongGun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Possible Causes Corrective Actions Troubleshooting Excessive SpatterTroubleshooting Porosity Troubleshooting Excessive PenetrationTroubleshooting Burn-Through Troubleshooting Lack Of PenetrationTroubleshooting Incomplete Fusion Weld bead Troubleshooting Waviness Of BeadTroubleshooting Distortion Flat & Horizontal1 Fillet Common MIG Shielding GasesApplication OM-1318 Includes Items Parts ListDia Part Description Mkgs Quantity M-10 Gun Figure -2. M-10 Gun Page Support ServiceYour distributor also gives Miller Electric Mfg. Co Owner’s Record