Hobart 180 SD manual Weld Test, Troubleshooting Porosity, Troubleshooting Excessive Spatter

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9-13. Weld Test

	3
		3
2 To 3 in
(51-76 mm)
		2 To 3 in
		(51-76 mm)
1/4 in	2	2
1/4 in	2
(6.4 mm)	1	1
	1	1

1Vise

2Weld Joint

3Hammer

Strike weld joint in direction shown. A good weld bends over but does not break.

S-0057-B

9-14. Troubleshooting – Porosity

Porosity – small cavities or holes resulting from gas pockets in weld metal.

Possible Causes	Corrective Actions

Arc length too long.	Reduce arc length.

Damp electrode.	Use dry electrode.

Workpiece dirty.	Remove all grease, oil, moisture, rust, paint, coatings, slag, and dirt from work surface before
	welding.

9-15. Troubleshooting – Excessive Spatter

Excessive Spatter – scattering of molten metal particles that cool to solid form near weld bead.

Possible Causes	Corrective Actions

Amperage too high for electrode.	Decrease amperage or select larger electrode.

Arc length too long or voltage too high.

Reduce arc length or voltage.

OM-355 Page 33

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Contents Processes OM-355Description From Hobart to You Table of Contents Page Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killPrincipal Safety Standards About Pacemakers EMF InformationConsignes DE Securite Lire Avant Utilisation Signification des symbolesUN Choc É Lectrique peut tuer LES Fumé ES ET LES GAZ peuvent ê tre dangereuxDES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer un incendie ou une explosionLE Bruit peut affecter l’ouïe LA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU’EMPLOI Excessif peut DES Organes Mobiles peuvent provoquer des blessuresInformation sur les champs é lectromagné tiques Principales normes de sé curitéConsignes relatives aux stimulateurs cardiaques Included with Your Unit InstallationSelecting a Location MovementSpecifications Dimensions And WeightsDuty Cycle Chart Weld Output Terminals And Selecting Cable Sizes Volt-Ampere CurvesARC Welding can cause Electromagnetic Interference Shielding Gas Connections Remote 14 ReceptacleSocket Necting to receptacleConnecting Input Power Electrical Service GuideInput Voltage Input Amperes at Rated OutputOperation Output Selector SwitchControls Example of Remote Amperage Control For TIG Gtaw Welding Connect remote control see Section OM-355Select weld process Select polarity Select amperage Example Select weld process Select polarityTypical Stick Connections Typical TIG ConnectionsRemote Foot Control ApplicationRoutine Maintenance Maintenance and TroubleshootingProcess and Material Thickness Guide Label Troubleshooting Adjusting Spark GapsTurn Off power before ad Justing spark gapsCircuit Diagram For Welding Power Source Electrical DiagramSources Of HF Radiation From Incorrect Installation Welding Processes Using HFHigh Frequency HF Ground Wire Correct InstallationNonmetal Building Metal BuildingSelecting and Preparing Tungsten Electrode Safety Information About TungstenSelecting Tungsten Electrode Preparing Tungsten For DC Electrode Negative Dcen Welding Positioning The Torch Guidelines for TIG Welding GtawInstead of thoriated. Tho Mables awayTungsten Without Filler Rod Torch Movement During WeldingWelding direction Form pool Tilt torch Tungsten With Filler RodButt Weld And Stringer Bead Joint Lap Joint Corner Joint Positioning Torch Tungsten For Various Weld JointsOM-355 Weld current starts when electrode touches work- piece Stick Welding ProcedureStick Welding Smaw Guidelines Striking an Arc Scratch Start Technique Electrode and Amperage Selection ChartStriking an Arc Tapping Technique Good Weld Bead Characteristics Poor Weld Bead CharacteristicsPositioning Electrode Holder 9090 End View of Work AngleElectrode Movement During Welding Conditions That Affect Weld Bead ShapeLap Joint Butt JointsTee Joint 16 in 1.6 mm Tack WeldsTroubleshooting Excessive Spatter Troubleshooting PorosityWeld Test Possible Causes Corrective ActionsTroubleshooting Lack Of Penetration Troubleshooting Incomplete FusionTroubleshooting Excessive Penetration Troubleshooting Waviness Of Bead Troubleshooting Burn-ThroughTroubleshooting Distortion Main Assembly Parts ListDia Part Description Quantity Mkgs 043 Panel, Front w/Components Page Page Page Support ServiceHobart Welding Products Contact your Distributor forCall