Miller Electric DVI-2 R manual Conditions That Affect Weld Bead Shape, Push, Perpendicular Drag

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8-4. 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.

 

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-232 386 Page 35

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Contents File MIG Gmaw OM-232 386BProcesses DescriptionFrom Miller to You Table of Contents − Parts List − MIG Welding Gmaw GuidelinesTypical MIG Process Connections HOT Parts can cause severe burns Symbol UsageArc Welding Hazards Electric Shock can killFlying Metal or Dirt can injure eyes Fumes and Gases can be hazardousARC Rays can burn eyes and skin Welding can cause fire or explosionMoving Parts can cause injury Welding Wire can cause injuryFire or Explosion hazard Falling Unit can cause injuryAbout Implanted Medical Devices Principal Safety StandardsCalifornia Proposition 65 Warnings EMF InformationUNE Décharge Électrique peut entraîner la mort Symboles utilisésDES Pièces Chaudes peuvent provoquer des brûlures graves LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un in cendie ou une explosion LA Chute DE L’APPAREIL peut blesser LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées Risque D’INCENDIE OU D’EXPLOProposition californienne 65 Avertissements LES Fils DE Soudage peuvent provoquer des blessuresLE Soudage À L’ARC risque de provoquer des interférences Principales normes de sécurité Information EMFEn ce qui concerne les implants médicaux OM-232 386 − Definitions − InstallationSymbols And Definitions SpecificationsMinutes Duty Cycle And Overheating40% duty cycle at 150 amps Minutes Welding Minutes Resting OverheatingRange Range 4 Range Connecting To Weld Output TerminalsCorrect Installation Volt-Ampere Curves11/16 Installing Work Cable And ClampSetting Gun Polarity For Wire Type Polarity Changeover Label InformationInstalling Gas Supply Rear PanelTools Needed 8, 5/8 With 8 in 200 mm spools To turn spool, tension is set Installing MIG Wire Spool and Adjusting Hub TensionInstalling 1 Or 2 lb Wire Spool Use compression spring230 VAC =GND/PE Earth Ground Connecting 1-Phase Input Power For 230 VACElectrical Service Guide For 230 VAC Hz Single PhaseExtension Cord Data Selecting a Location And Connecting Input Power Do not move or operate unit where it could tip18 in 457 mm of space for airflow Remove gun nozzle and contact tip Threading Welding WirePressure ScaleTurn Off unit, and disconnect input power Connecting An Optional Spool Gun − Operation ControlsVoltage Control Parameter Weld Parameter ChartVoltage Chart Settings Input Line226 652-A Unit Overload − Maintenance &TROUBLESHOOTINGRoutine Maintenance Changing Drive Roll and Wire Inlet GuideWelding Trouble Remedy Aligning Drive Rolls and Wire GuideTroubleshooting Turn Off powerWire Drive/Gun Trouble Remedy OM-232 386 Welding Power Source Circuit Diagram − Electrical Diagram229 598-B Typical MIG Process Connections − MIG Welding Gmaw GuidelinesSelect Voltage Typical MIG Process Control SettingsWire Size Amperage Range AmperageGroove Welds Holding And Positioning Welding GunShort Normal Long Conditions That Affect Weld Bead ShapePush Perpendicular DragPoor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Possible Causes Corrective Actions Troubleshooting − Excessive SpatterTroubleshooting − Porosity Troubleshooting − Excessive PenetrationTroubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Burn-Through Troubleshooting − Waviness Of Bead Troubleshooting − DistortionWeld bead Application Troubleshooting Guide For Semiautomatic Welding EquipmentProblem Probable Cause Remedy Common MIG Shielding GasesDrive rolls if necessary Welding arc not stable Wire slipping in drive rollsReadjust welding parameters Welding power sourceDrive Roll And Wire Guide Kits − Parts ListService Your distributor also givesSupport Your distributor and/or equipment manufacturer’s To locate a Distributor or Service Agency visitMiller Electric Mfg. Co For assistance in filing or settling claims, contact
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