Miller Electric M-15 manual Gun Movement During Welding, Poor Weld Bead Characteristics

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6-5. Gun Movement During Welding

NOTE

Normally, a single stringer bead is satisfactory for most narrow groove weld joints; however, for wide groove weld joints or bridging across gaps, a weave bead or multiple stringer beads works better.

1

2

3

1Stringer Bead – Steady Movement Along Seam

2Weave Bead – Side To Side Movement Along Seam

3Weave Patterns

Use weave patterns to cover a wide area in one pass of the electrode.

S-0054-A

6-6. Poor Weld Bead Characteristics

1

2

3

4

1 Large Spatter Deposits

2 Rough, Uneven Bead

3 Slight Crater During Welding

4 Bad Overlap

5 Poor Penetration

5

S-0053-A

6-7. Good Weld Bead Characteristics

1

2

3

4

1Fine Spatter

2Uniform Bead

3Moderate Crater During Welding

Weld a new bead or layer for each 1/8 in (3.2 mm) thickness in metals being welded.

4No Overlap

5Good Penetration into Base Metal

5

S-0052-B

OM-1314 Page 28

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Contents Description OM-1314Processes 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 Bruit peut affecter l’ouïe LE Soudage peut provoquer un incendie ou une explosionDES Particules Volantes peuvent blesser les yeux Risque D’INCENDIE OU LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresConsignes relatives aux stimulateurs cardiaques Principales normes de sé curitéInformation sur les champs é lectromagné tiques Volt-Ampere Curves InstallationSpecifications Duty Cycle And Overheating OverheatingInstalling Work Clamp Installing Gas SupplyFollow wire manufacturer’s recommendation Do not move or operate unit Where it could tip Electrical Service GuideSelecting a Location And Connecting Input Power Installing Wire Spool And Adjusting Hub Tension Standard Wire Spool Standard Wire ReelInstalling Drive Roll And Threading Welding Wire Operation Weld ParametersControls 14 ga 16 ga 18 ga 20 ga 22 gaMaintenance & Troubleshooting MaintenanceMonths Fuse F1Unicable Repair Turn Off power before replacing contact tipReplacing Gun Contact Tip To Reassemble Gun Cleaning Or Replacing Gun LinerDisconnect gun from unit Replacing Switch And/Or Head Tube Remove handle Remove switch housing. Note If installing newCleaning Or Repairing Drive Assembly Turn Off power before cleaning or repairing drive assemblyTroubleshooting Welding Trouble RemedyElectrical Diagram Circuit DiagramMIG 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 Troubleshooting Excessive Spatter Troubleshooting PorosityTroubleshooting Excessive Penetration Possible Causes Corrective ActionsTroubleshooting Burn-Through Troubleshooting Lack Of PenetrationTroubleshooting Incomplete Fusion Troubleshooting Waviness Of Bead Troubleshooting DistortionFlat & Horizontal1 Fillet Common MIG Shielding GasesApplication OM-1314 Parts List Main AssemblyDia Part Mkgs Description Quantity M-15 Gun 169 M-15 Gun -1 ItemDrive Assembly, Wire -1 Item Service SupportOwner’s Record Miller Electric Mfg. Co

M-15 specifications

Miller Electric M-15 is a highly regarded welding machine designed to cater to a variety of welding applications in both industrial and commercial environments. Known for its reliability and efficiency, the M-15 stands out in the Miller Electric lineup due to its impressive performance and user-friendly features.

One of the primary characteristics of the M-15 is its versatility. It supports multiple welding processes, including MIG, TIG, and Stick welding. This multi-process capability allows operators to switch between different techniques without needing to change equipment, making it an ideal choice for fabricators and maintenance professionals who handle various welding tasks.

The M-15 is engineered with advanced inverter technology, which enhances its performance and efficiency. This technology allows for a lightweight design while still delivering powerful output. The machine offers a wide range of amperage, making it suitable for welding thin materials as well as thicker sections. As a result, the M-15 can tackle everything from delicate sheet metal projects to robust structural welds.

Another standout feature is its intuitive control panel, which simplifies operation for both novice and experienced welders. The easy-to-read display provides essential information regarding settings and performance, allowing users to make adjustments on the fly. This user-friendly interface minimizes the learning curve and maximizes productivity in the workshop.

In terms of safety, the Miller Electric M-15 incorporates several features designed to protect users during operation. Its built-in thermal overload protection automatically shuts down the machine in case of overheating, thus preventing damage to the equipment and ensuring the safety of the operator.

Durability is also a hallmark of the M-15. Constructed with high-quality materials, this welding machine is built to withstand the rigors of daily use in demanding environments. The housing is designed to protect internal components from dust, debris, and accidental impacts, ensuring consistent performance over time.

Overall, the Miller Electric M-15 combines advanced technology, versatility, and reliability into a compact and powerful welding machine. Its user-friendly design, safety features, and robust construction make it a top choice for professionals looking to invest in a reliable welding solution. Whether for heavy industrial applications or lighter fabrication work, the M-15 is equipped to meet a wide range of welding challenges with confidence.