Miller Electric 172 M-10 Gun Common MIG Shielding Gases, Application, Flat & Horizontal1 Fillet

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7-16. Common MIG Shielding Gases

This is a general chart for common gases and where they are used. Many different combinations (mixtures) of shielding gases have been developed over the years. The most commonly used shielding gases are listed in the following table.

				Application

Gas		Spray Arc Steel	Short Circuiting Steel		Short Circuiting	Short Circuiting
		Spray Arc Steel	Short Circuiting Steel		Stainless Steel	Aluminum
					Stainless Steel	Aluminum

Argon						All Positions

Argon + 25% CO	2	Flat & Horizontal1 Fillet	All Positions		All Positions2
	2

CO2		Flat & Horizontal1 Fillet	All Positions

Tri-Mix3					All Positions

1Globular Transfer

2Single Pass Welding Only

390% HE + 7-1/2% AR + 2-1/2% CO2

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Contents OM-1318187923F ProcessesDescription From Miller to You Table of Contents Page Symbol Usage Marks a special safety messageArc Welding Hazards Electric Shock can killARC Rays can burn eyes and skin Welding can cause fire or explosionFlying Metal can injure eyes Buildup of GAS can injure or killPrincipal Safety Standards EMF Information About PacemakersSignification des symboles Consignes DE Securite Lire Avant UtilisationUN Choc É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxLE Soudage peut provoquer un incendie ou une explosion DES Particules Volantes peuvent blesser les yeuxLE Bruit peut affecter l’ouïe Risque D’INCENDIE OU LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sé curité Information sur les champs é lectromagné tiquesConsignes relatives aux stimulateurs cardiaques Specifications SpecificationsVolt-Ampere Curves Welding Power Source Duty Cycle And Overheating Welding Gun Duty Cycle And OverheatingOverheating DefinitionInstallation Installing Work ClampInstalling Welding Gun And Changing Polarity Installing Gas Supply Flow AdjustElectrical Service Guide Selecting a Location And Connecting Input PowerDo not move or operate unit Where it could tip 18 in 457 mm of space for airflowInstalling Wire Spool And Adjusting Hub Tension Standard Wire Spool Standard Wire ReelTools Needed 15/16 Assembly, and let go of wire Reinstall contact tip, and nozzleWeld Parameter 14 ga 16 ga 18 ga 20 ga 22 gaWire Speed Control Voltage SwitchOperation ControlsMaintenance &TROUBLESHOOTING Routine MaintenanceDrive Motor Fuse F1 Short Circuit ShutdownCleaning Or Repairing Drive Assembly Turn Off power before cleaning or repairing drive assemblyWire Spool Nozzle Turn Off power before replacing contact tipCleaning Or Replacing Gun Liner Disconnect gun from unitBlow out gun casing Tools Needed Remove liner To Reassemble GunReplacing Switch And/Or Head Tube Disconnect gun firstRemove handle locking nut Slide handle Troubleshooting Table Secure power cord plug in receptacle see SectionTrouble Remedy Motor continues to run SectionElectrical Diagram OM-1316Regulator Flowmeter Wire Feeder Power Source Shielding Gas MIG Welding Gmaw GuidelinesTypical MIG Process Connections Gun Workpiece Work ClampTypical MIG Process Control Settings Wire Recommendation Wire SpeedSelect Wire Size Based on 1/8 in material thickness Ipm = inch per minuteHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Push PerpendicularDragShort Normal Long ShortNormalLongPoor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Troubleshooting Excessive Spatter Troubleshooting PorosityTroubleshooting Excessive Penetration Possible Causes Corrective ActionsTroubleshooting Lack Of Penetration Troubleshooting Incomplete FusionTroubleshooting Burn-Through Troubleshooting Waviness Of Bead Troubleshooting DistortionWeld bead Common MIG Shielding Gases ApplicationFlat & Horizontal1 Fillet OM-1318 Parts List Includes ItemsDia Part Description Mkgs Quantity M-10 Gun Figure -2. M-10 Gun Page Service Your distributor also givesSupport Owner’s Record Miller Electric Mfg. Co