Hobart Welding Products OM-947 manual Conditions That Affect Weld Bead Shape, Short Normal Long

Page 39

9-5. Conditions That Affect Weld Bead Shape

.Weld bead shape depends on gun angle, direction of travel, electrode extension (stickout), travel speed, thickness of base metal, wire feed speed (weld current), and voltage.

.The Drag or Pull technique is generally recommended when welding with flux-cored tubular wire.

Push	Perpendicular	Drag or Pull
10°		10°
Electrode directed		Electrode pointed
ahead of bead		back into bead

Direction Of Welding

GUN ANGLES AND WELD BEAD PROFILES

Short

Normal

Long

ELECTRODE EXTENSIONS (STICKOUT)

Short

Normal

Long

FILLET WELD ELECTODE EXTENSIONS (STICKOUT)

Slow	Normal	Fast
	GUN TRAVEL SPEED	S-0634
		S-0634

OM-947 Page 35

Image 39

Contents Processes DescriptionFile Flux Cored Fcaw Protect Your Investment From Hobart to YouTable of Contents Warranty HOT Parts can burn Symbol UsageArc Welding Hazards Electric Shock can killFlying Metal or Dirt can injure eyes Fumes and Gases can be hazardousARC Rays can burn eyes and skin Welding can cause fire or explosionMoving Parts can injure Welding Wire can injureFire or Explosion hazard Falling Equipment can injureAbout Implanted Medical Devices Principal Safety StandardsCalifornia Proposition 65 Warnings EMF InformationUNE Décharge Électrique peut entraîner la mort Symboles utilisésLES Pièces Chaudes peuvent provoquer des brûlures LES Fumées ET LES GAZ peuvent être dangereuxLE Soudage peut provoquer un incendie ou une explosion LA Chute DE L’ÉQUIPEMENT peut provoquer des blessures LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées Risque D’INCENDIE OULE Soudage À L’ARC risque de provoquer des interférences Proposition californienne 65 AvertissementsLes Pièces Mobiles peuvent causer des blessures LES Fils DE Soudage peuvent provoquer des blessuresPrincipales normes de sécurité Informations relatives aux CEMEn ce qui concerne les implants médicaux OM-947 − Definitions − SpecificationsSymbols And Definitions SpecificationsVolt-Ampere Curves Duty Cycle And Overheating− Installation Installing Work ClampTools Needed Slide insulating grips over handles OM-947 Changing Polarity Process/Polarity TableTools Needed 11/16, 1-1/8 Shielding Gas Installing Gas SupplyTools Needed Installing Wire Spool And Adjusting Hub Tension460 mm Serial Number And Rating Label LocationTurn off welding power source Installing Contact Tip And NozzleThreading Welding Wire Load − OperationControls Operating The GunOM-947 Weld Parameter Chart 210 Drive Motor Protection − Maintenance &TROUBLESHOOTINGRoutine Maintenance Overload ProtectionChanging Drive Roll Or Wire Inlet Guide Replacing Gun Contact Tip Turn Off power before replacing contact tipCleaning Gun Liner Replacing Gun Liner Head Mm / 10 mm TubeLoosen liner setscrew 10 mm Trouble Remedy Troubleshooting TableSecure power cord plug in receptacle see Section Power source see SectionCircuit Diagram − Electrical Diagram − Wire Welding Guidelines Typical Fcaw Process Connections Typical MIG Process Connections Select Voltage Typical Control SettingsWire Size Amperage Range AmperageGroove Welds Holding And Positioning Welding GunConditions That Affect Weld Bead Shape Short Normal LongSlow Normal Fast Poor Weld Bead Characteristics Good Weld Bead CharacteristicsGun Movement During Welding Possible Causes Corrective Actions Troubleshooting − Excessive SpatterTroubleshooting − Porosity Troubleshooting − Excessive PenetrationTroubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Burn-Through Troubleshooting − Waviness Of Bead Troubleshooting − DistortionTroubleshooting Guide For Semiautomatic Welding Equipment Main Assembly − Parts ListOptional Pkg 195 157R− See Table Pkg195 Hub Kit For 8 in Wire Spool 209Weatherproof Nylon Work like a Pro Page Page Service SupportAssistance Hobart Welding Products Contact your Distributor for