Miller Electric M-10 Gun, 140 Common MIG Shielding Gases, Application, Flat & Horizontal1 Fillet

Page 56

8-16. 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

 

 

Stainless Steel

Aluminum

 

 

 

 

 

 

 

 

 

 

 

 

Argon

 

 

 

 

 

All Positions

 

 

 

 

 

 

 

Argon + 25% CO

2

Flat & Horizontal1 Fillet

All Positions

 

All Positions2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

OM-225 311 Page 52

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Contents OM-225 311C ProcessesDescription File MIG GmawFrom Miller to You Table of Contents − Maintenance &TROUBLESHOOTING − Parts ListSymbol 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 killCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux LE Soudage peut provoquer un incendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES Pièces Chaudes peuvent provoquer des brûlures graves LE Bruit peut endommager l’ouïeRisque D’INCENDIE OU D’EXPLO LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaques− Specifications SpecificationsVAC Model VAC Model w/Auto−SetEDuty Cycle And Overheating 115 VAC Model230 VAC Model OverheatingVolt-Ampere Curves AmperageIncorrect − InstallationInstalling Welding Gun Changing Polarity Work Cable Routing Inside UnitProcess/Polarity Table Installing Gas Supply Special installation may be Required where gasoline orVolatile liquids are present − See NEC Article 511 or CECDo not move or operate unit where it could tip Input Voltage 230 Input Amperes At Rated Output Electrical Service Guide For 230 VAC ModelInstalling Wire Spool And Adjusting Hub Tension Threading Welding Wire Remove gun nozzle and contact tipEnd Of Wire To Spool Removing MIG Gun From Welding Power SourceCut Off End Of Wire Open Pressure Assembly Knob Installing Optional Spool Gun Switch In Welding Power Source OperationConnecting Spool Gun To Millermatic 140/180 − Operation Controls For 115 VAC Model w/Auto-SetEControls For 115 VAC Model 115VControls For 230 VAC Model 230VOM-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 10/100 030 0.8 mm 035 0.9 mm Aluminum 100% Argon 4043ER10/32 OM-225 311 10/90 10/45 10/60 10/30 10/32 10/80 030 0.8 mm 035 0.9 mm#220179 #220179 #202926Dcep Dcen 100 10/60 10/45 10/40 10/20 10/50 024 0.6 mm #220179 030 0.8 mm #202926 035 0.9 mm 045 1.2 mm− Maintenance &TROUBLESHOOTING Routine MaintenanceOverload Protection Drive Motor ProtectionReplacing Gun Contact Tip Changing Drive Roll Or Wire Inlet GuideTurn Off power before replacing contact tip To Reassemble Gun Cleaning Or Replacing Gun LinerDisconnect gun from unit Replacing Switch And/Or Head Tube Troubleshooting Table Trouble RemedyOM-225 311 − Electrical Diagram Circuit Diagram234 419-B − MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsTypical MIG Process Control Settings Wire Recommendation Wire SpeedSelect Wire Size Select VoltageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Gun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Possible Causes Corrective Actions Troubleshooting − Excessive Spatter Troubleshooting − Porosity Troubleshooting − Incomplete Fusion Troubleshooting − Excessive PenetrationTroubleshooting − Lack Of Penetration Troubleshooting − Distortion Troubleshooting − Burn-ThroughTroubleshooting − Waviness Of Bead Flat & Horizontal1 Fillet Common MIG Shielding GasesApplication − Parts List Recommended Spare PartsOptional Drive Rolls OptionsPage Service SupportOwner’s Record Miller Electric Mfg. Co
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