Hobart 180 SD manual Stick Welding Smaw Guidelines, Stick Welding Procedure

Page 32

SECTION 9 – STICK WELDING (SMAW) GUIDELINES

9-1. Stick Welding Procedure

Y Weld current starts when electrode touches work- piece.

5

4

2

3

6

1 7

YWeld current can damage electronic parts in vehicles. Disconnect both battery cables before welding on a vehicle. Place work clamp as close to the weld as possible.

1 Workpiece

Make sure workpiece is clean be- fore welding.

2Work Clamp

3Electrode

A small diameter electrode requires less current than a large one. Fol- low electrode manufacturer’s instructions when setting weld am- perage (see Section 9-2).

4Insulated Electrode Holder

5Electrode Holder Position

6Arc Length

Arc length is the distance from the electrode to the workpiece. A short arc with correct amperage will give a sharp, crackling sound.

7 Slag

Use a chipping hammer and wire brush to remove slag. Remove slag and check weld bead before mak- ing another weld pass.

Tools Needed:

stick 12/96 – ST-151 593

OM-355 Page 28

Image 32
Contents Description OM-355Processes From Hobart 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 Installation Included with Your UnitSelecting a Location MovementDuty Cycle Chart Dimensions And WeightsSpecifications ARC Welding can cause Electromagnetic Interference Volt-Ampere CurvesWeld Output Terminals And Selecting Cable Sizes Remote 14 Receptacle Shielding Gas ConnectionsSocket Necting to receptacleElectrical Service Guide Connecting Input PowerInput Voltage Input Amperes at Rated OutputControls Output Selector SwitchOperation Connect remote control see Section OM-355 Example of Remote Amperage Control For TIG Gtaw WeldingSelect weld process Select polarity Select amperage Example Select weld process Select polarityTypical TIG Connections Typical Stick ConnectionsRemote Foot Control ApplicationProcess and Material Thickness Guide Label Maintenance and TroubleshootingRoutine Maintenance Adjusting Spark Gaps TroubleshootingTurn Off power before ad Justing spark gapsElectrical Diagram Circuit Diagram For Welding Power SourceHigh Frequency HF Welding Processes Using HFSources Of HF Radiation From Incorrect Installation Correct Installation Ground WireNonmetal Building Metal BuildingSelecting Tungsten Electrode Safety Information About TungstenSelecting and Preparing Tungsten Electrode Preparing Tungsten For DC Electrode Negative Dcen Welding Guidelines for TIG Welding Gtaw Positioning The TorchInstead of thoriated. Tho Mables awayTorch Movement During Welding Tungsten Without Filler RodWelding direction Form pool Tilt torch Tungsten With Filler RodPositioning Torch Tungsten For Various Weld Joints Butt Weld And Stringer Bead Joint Lap Joint Corner JointOM-355 Stick Welding Smaw Guidelines Stick Welding ProcedureWeld current starts when electrode touches work- piece Striking an Arc Tapping Technique Electrode and Amperage Selection ChartStriking an Arc Scratch Start Technique Poor Weld Bead Characteristics Good Weld Bead CharacteristicsPositioning Electrode Holder 9090 End View of Work AngleConditions That Affect Weld Bead Shape Electrode Movement During WeldingButt Joints Lap JointTee Joint 16 in 1.6 mm Tack WeldsTroubleshooting Porosity Troubleshooting Excessive SpatterWeld Test Possible Causes Corrective ActionsTroubleshooting Excessive Penetration Troubleshooting Incomplete FusionTroubleshooting Lack Of Penetration Troubleshooting Distortion Troubleshooting Burn-ThroughTroubleshooting Waviness Of Bead Parts List Main AssemblyDia Part Description Quantity Mkgs 043 Panel, Front w/Components Page Page Page Service SupportCall Contact your Distributor forHobart Welding Products