Hobart Welding Products OM-950 Weld Bead Characteristics, Conditions That Affect Weld Bead Shape

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8-5. Weld Bead Characteristics

Poor Weld Bead			1	Large Spatter Deposits
			2	Rough, Uneven Bead
			3	Slight Crater During Welding
1			4	Bad Overlap
2	3	4	5	Poor Penetration

				5
					S-0053-A
				1	Fine Spatter
				2	Uniform Bead
Good Weld Bead				3	Moderate Crater During
					Welding
				Weld a new bead or layer for each
				1/8 in (3.2 mm) thickness in metals
1			5	being welded.
1			5	4	No Overlap
				4	No Overlap
2	3	4		5	Good Penetration Into Base
					Metal

Ref. S-0052-B

8-6. Conditions That Affect Weld Bead Shape

Electrode Angle
Angle Too Small	Correct Angle	Angle Too Large
	10° - 30°
	Drag

Arc Length

Spatter

Too Short

Normal

Too Long

Travel Speed

Slow

Normal

Fast

S-0061

OM-950 Page 26

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Contents Processes DescriptionFrom Hobart to You Table of Contents Page Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killCalifornia Proposition 65 Warnings Principal Safety Standards EMF InformationAbout Pacemakers UNE Décharge Électrique peut entraîner la mort LES Fumées ET LES GAZ peuvent être dangereuxIndique un message de sécurité particulier DES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer unIncendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures graves’EMPLOI Excessif peut SUR Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaquesSymbols And Definitions − DefinitionsManufacturer’s Rating Labels AC/DC Models − InstallationSpecifications AC ModelsFor 235/160A Models Duty Cycle ChartsFor AC/DC Models For AC ModelsVolt-Ampere Curves Selecting a Location For AC Models For 235A ModelsHolder or work clamp Installing Electrode Holder And Work ClampInstalling Electrode Cable and Barrel Onto Electrode Holder50/60 Hz Electrical Service GuideWeld Output Cables Input Voltage 230 Input Amperes At Rated Output=GND/PE Earth Groundbe sure to supply correct in- put power Connecting Input PowerOut input power before instal Disconnect and lockout/tagControls For AC/DC Models − OperationControls For DC Weld OutputControls For AC Models Lubricating Shunt Block And Anti-Noise Adjustment − Maintenance & TroubleshootingRoutine Maintenance MonthsReinstalling Amperage Adjustment Indicator Troubleshooting Trouble RemedyCircuit Diagram For AC/DC 230 Volts Models Circuit Diagram For AC 230 Volts Models − Welding Methods & Troubleshooting Welding Methods Shielded Metal Arc Welding Smaw ProcedureElectrode And Amperage Selection Chart 6013 7014Striking An Arc Positioning The Electrode HolderElectrode Angle Weld Bead CharacteristicsConditions That Affect Weld Bead Shape Arc LengthElectrode Movement During Welding Butt JointsTee Joints Welding TroubleshootingLap Joints PorosityExcessive Spatter Incomplete FusionLack Of Penetration Waviness Of Bead Excessive PenetrationBurn-Through DistortionStart Your Professional Welding Career Now − Parts List Main Assembly AC/DC model illustratedMain Assembly Page Service SupportAssistance Contact your Distributor for Hobart Welding Products