Miller Electric 140 Auto-Set, M-10 Gun, 180 manual Conditions That Affect Weld Bead Shape

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8-4. 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

PerpendicularDrag

GUN ANGLES AND WELD BEAD PROFILES

Short	Normal	Long
	ELECTRODE EXTENSIONS (STICKOUT)

ShortNormalLong

FILLET WELD ELECTRODE EXTENSIONS (STICKOUT)

Slow	Normal	Fast
	GUN TRAVEL SPEED

S-0634

OM-225 311 Page 47

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Contents File MIG Gmaw OM-225 311CProcesses DescriptionFrom Miller to You Table of Contents − Parts List − Maintenance &TROUBLESHOOTINGElectric 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 eyesCalifornia Proposition 65 Warnings Principal Safety Standards EMF InformationAbout Pacemakers UNE Décharge Électrique peut entraîner la mort LES Fumées ET LES GAZ peuvent être dangereuxIndique un message de sécurité particulier LE Bruit peut endommager l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesDES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peut SUREn ce qui concerne les stimulateurs cardiaques Principales normes de sécuritéVAC Model w/Auto−SetE − SpecificationsSpecifications VAC ModelOverheating Duty Cycle And Overheating115 VAC Model 230 VAC ModelAmperage Volt-Ampere Curves− Installation Installing Welding GunIncorrect Work Cable Routing Inside Unit Process/Polarity TableChanging Polarity Installing Gas Supply See NEC Article 511 or CEC Special installation may beRequired where gasoline or Volatile liquids are present −Do not move or operate unit where it could tip Electrical Service Guide For 230 VAC Model Installing Wire Spool And Adjusting Hub TensionInput Voltage 230 Input Amperes At Rated Output Remove gun nozzle and contact tip Threading Welding WireRemoving MIG Gun From Welding Power Source Cut Off End Of Wire Open Pressure Assembly KnobEnd Of Wire To Spool Operation Installing Optional Spool Gun Switch In Welding Power SourceConnecting Spool Gun To Millermatic 140/180 Controls For 115 VAC Model w/Auto-SetE − Operation115V Controls For 115 VAC Model230V Controls For 230 VAC ModelOM-225 311 Weld Parameter Chart For 115 VAC Model w/Auto−SetE 10/90 10/65 10/80 10/60 10/50 10/95 10/75 10/100 Aluminum 100% Argon 4043ER 030 0.8 mm 035 0.9 mm10/32 OM-225 311 10/90 10/45 10/60 10/30 10/32 10/80 035 0.9 mm 030 0.8 mm#220179 #202926 #220179Dcep Dcen 024 0.6 mm #220179 030 0.8 mm #202926 035 0.9 mm 045 1.2 mm 100 10/60 10/45 10/40 10/20 10/50Drive Motor Protection − Maintenance &TROUBLESHOOTINGRoutine Maintenance Overload ProtectionChanging Drive Roll Or Wire Inlet Guide Turn Off power before replacing contact tipReplacing Gun Contact Tip Cleaning Or Replacing Gun Liner Disconnect gun from unitTo Reassemble Gun Replacing Switch And/Or Head Tube Trouble Remedy Troubleshooting TableOM-225 311 Circuit Diagram − Electrical Diagram234 419-B Typical MIG Process Connections − MIG Welding Gmaw GuidelinesSelect Voltage Typical MIG Process Control SettingsWire Recommendation Wire Speed Select Wire SizeHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Poor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Troubleshooting − Excessive Spatter Troubleshooting − PorosityPossible Causes Corrective Actions Troubleshooting − Excessive Penetration Troubleshooting − Lack Of PenetrationTroubleshooting − Incomplete Fusion Troubleshooting − Burn-Through Troubleshooting − Waviness Of BeadTroubleshooting − Distortion Common MIG Shielding Gases ApplicationFlat & Horizontal1 Fillet Options − Parts ListRecommended Spare Parts Optional Drive RollsPage Support ServiceMiller Electric Mfg. Co Owner’s Record

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